Photo credits
Aquiio shows 1,756 species photos made by contributors on iNaturalist, Wikimedia Commons and GBIF and shared under Creative Commons licences or in the public domain. Thank you to every photographer. Photos are shown as published, apart from cropping and resizing. The same list is in the app under Settings → Photo credits.
If you made one of these photos and want the credit changed or the photo removed, write to support@aquiio.com.
| Species | Photo by | Licence | Source |
|---|---|---|---|
| Abalone Haliotis asinina (museum specimen) | Daniel J Jackson, Gert Wörheide and Bernard M Degnan | CC BY 4.0 | iNaturalist |
| Acan echinata Acanthastrea echinata | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Acan lord coral Micromussa lordhowensis | Susan Prior | CC BY 4.0 | iNaturalist |
| Achilles tang Acanthurus achilles | Jean | CC BY 4.0 | iNaturalist |
| Aciotis Aciotis acuminifolia | Guillaume Delaitre | CC BY 4.0 | GBIF |
| Adolfo's cory Hoplisoma adolfoi (museum specimen) | Claudio de Oliveira, Laboratório de Biologia e Genética de Peixes - UNESP - Botucatu | CC BY 3.0 | Wikimedia Commons |
| African arowana Heterotis niloticus | Brent Tibbatts | CC BY 4.0 | iNaturalist |
| African banded barb Enteromius fasciolatus | Frank M. Greco | CC BY 4.0 | iNaturalist |
| African butterfly cichlid Anomalochromis thomasi | Klaus Rudloff | CC BY-SA 4.0 | iNaturalist |
| African butterflyfish Pantodon buchholzi | Isidro Martínez | CC BY-SA 4.0 | iNaturalist |
| African clawed frog Xenopus laevis | Marius Burger | CC0 1.0 | iNaturalist |
| African dwarf frog Hymenochirus boettgeri | Marius Burger | CC0 1.0 | iNaturalist |
| African freshwater pipefish Enneacampus ansorgii (museum specimen) | Ernst Swartz | CC BY 4.0 | GBIF |
| African knifefish Xenomystus nigri | John P Friel | CC BY 4.0 | iNaturalist |
| African lungfish Protopterus annectens | Takada@mex | CC BY-SA 4.0 | iNaturalist |
| African onion plant Crinum calamistratum (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| African pike characin Hepsetus odoe | Ian Roderick | CC BY 4.0 | GBIF |
| African red-eyed tetra Arnoldichthys spilopterus | Klaus Rudloff | CC BY-SA 4.0 | iNaturalist |
| African scat Scatophagus tetracanthus | Brent Tibbatts | CC BY 3.0 | Wikimedia Commons |
| Agassiz's cory Brochis agassizii | Celso Henrique Varela Rios | CC BY 4.0 | GBIF |
| Agassiz's dwarf cichlid Apistogramma agassizii | Cisamarc | CC BY-SA 4.0 | iNaturalist |
| Agulha tetra Hyphessobrycon agulha | A. Zarske, D. Bork, H.J. Franke, illust. Jurgen Scholz | CC BY 4.0 | Wikimedia Commons |
| Aiptasia Exaiptasia diaphana | Cricket Raspet | CC BY 4.0 | iNaturalist |
| Aiptasia-eating filefish Acreichthys tomentosus | Haplochromis | CC BY-SA 3.0 | Wikimedia Commons |
| Alenquer tiger pleco Panaqolus sp. L397 (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Alfred's licorice gourami Parosphromenus alfredi | Zakqary Roy | CC BY 4.0 | GBIF |
| Allard's clownfish Amphiprion allardi | Bernard Picton | CC BY 4.0 | iNaturalist |
| Allen's damsel Pomacentrus alleni | Gerald R. Allen, osa oikeuksista pidätetään | CC BY 4.0 | iNaturalist |
| Alligator hillstream loach Homalopteroides tweediei | Zakqary Roy | CC BY 4.0 | iNaturalist |
| Alluaud's haplo Astatoreochromis alluaudi | The original uploader was MidgleyDJ at English Wikipedia . | CC BY-SA 2.5 | Wikimedia Commons |
| Alternanthera reineckii Alternanthera reineckii | No machine-readable author provided. Rchampagne assumed (based on copyright claims). | Public domain | Wikimedia Commons |
| Altum angel Pterophyllum altum | Jeff Kubina | CC BY-SA 4.0 | iNaturalist |
| Alveopora coral Alveopora sp. | Paul Asman and Jill Lenoble | CC BY 4.0 | iNaturalist |
| Amanda jane cory Brochis amandajanea (museum specimen) | Claudio de Oliveira, Laboratório de Biologia e Genética de Peixes - UNESP - Botucatu | CC BY 3.0 | Wikimedia Commons |
| Amano shrimp Caridina multidentata | Dornenwolf | CC BY 4.0 | iNaturalist |
| Amazon cichlid Cichlasoma amazonarum | Michael Bakker Paiva | CC BY 4.0 | Wikimedia Commons |
| Amazon frogbit Limnobium laevigatum | Seba Fernández | CC BY 4.0 | GBIF |
| Amazon puffer Colomesus asellus | Neale Monks | CC BY-SA 4.0 | iNaturalist |
| Amazon sword Echinodorus grisebachii | Unknown author | CC0 1.0 | iNaturalist |
| Amazon whiptail catfish Farlowella amazonum | Gabriel Lelis Togni | CC BY 3.0 | Wikimedia Commons |
| American flagfish Jordanella floridae | geosesarma | CC BY 4.0 | iNaturalist |
| American frogbit Limnobium spongia | mfeaver | CC BY 4.0 | GBIF |
| Amieti killi Fundulopanchax amieti | Violaine2 | CC BY-SA 4.0 | iNaturalist |
| Ammannia crassicaulis Ammannia crassicaulis | pbsg | CC BY 4.0 | GBIF |
| Ammannia gracilis Ammannia gracilis (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Anacharis Egeria densa | JaneR | CC BY 4.0 | GBIF |
| Ancistrus damasceni Ancistrus damasceni (museum specimen) | GBIF contributor | CC BY-SA 3.0 | GBIF |
| Anduzi's pencilfish Nannostomus anduzei (museum specimen) | Natural History Museum | CC BY 4.0 | Wikimedia Commons |
| Anemone shrimp Ancylocaris brevicarpalis | Gregor Bailar | CC BY 4.0 | iNaturalist |
| Angel licorice gourami Parosphromenus anjunganensis (museum specimen) | GBIF contributor | CC BY-SA 3.0 | GBIF |
| Angel squeaker Synodontis angelicus | Haps | CC BY-SA 4.0 | iNaturalist |
| Angelfish Pterophyllum scalare | Szabi237 | CC BY 4.0 | iNaturalist |
| Angelicus pleco (L004) Hypancistrus sp. L004 (museum specimen) | Melin, D | CC BY 4.0 | GBIF |
| Antennata lionfish Pteropterus antennatus | Nhobgood | CC BY-SA 4.0 | iNaturalist |
| Anthelia Anthelia spp. | George Greiff | CC BY 4.0 | iNaturalist |
| Anubias 'Nangi' Anubias gilletii × barteri var. nana 'Nangi' (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Anubias barteri Anubias barteri var. barteri | Ji-Elle | CC BY-SA 4.0 | iNaturalist |
| Anubias congensis Anubias sp. (traded as A. congensis) | Daderot | CC0 | Wikimedia Commons |
| Anubias gigantea Anubias gigantea (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Anubias gracilis Anubias gracilis (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Anubias hastifolia Anubias hastifolia (museum specimen) | Meise Botanic Garden | CC BY 4.0 | GBIF |
| Anubias heterophylla Anubias heterophylla (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Anubias lanceolata Anubias lanceolata | Krzysztof Ziarnek, Kenraiz | CC BY-SA 4.0 | iNaturalist |
| Anubias nana Anubias barteri var. nana | S.Tanaka | Public domain | Wikimedia Commons |
| Aphanius mento Aphanius mento (museum specimen) | GBIF contributor | CC BY-SA 4.0 | GBIF |
| Apistogramma barlowi Apistogramma barlowi | Zakqary Roy | CC BY 4.0 | GBIF |
| Apistogramma eremnopyge Apistogramma eremnopyge | Mazapura | CC BY-SA 4.0 | iNaturalist |
| Apistogrammoides pucallpaensis Apistogrammoides pucallpaensis | Kullander, SO | CC BY 4.0 | GBIF |
| Apollo shark Luciosoma setigerum | Zakqary Roy | CC BY 4.0 | iNaturalist |
| Aponogeton boivinianus Aponogeton boivinianus (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Aponogeton crispus Aponogeton crispus | Desaix83, d'après le travail de Drhyperlaur | CC0 | Wikimedia Commons |
| Aponogeton henkelianus Aponogeton henkelianus (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Aponogeton longiplumulosus Aponogeton longiplumulosus (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Aponogeton natans Aponogeton natans | Paulmathi Vinod | CC BY 4.0 | GBIF |
| Aponogeton ulvaceus Aponogeton ulvaceus (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Arabian toothcarp Aphaniops dispar | Jan Ebr & Ivana Ebrová | CC BY 4.0 | iNaturalist |
| Araguaia dwarf acara Laetacara araguaiae | Frank M. Greco | CC BY 4.0 | iNaturalist |
| Arc-eye hawkfish Paracirrhites arcatus | Ken-ichi Ueda | CC BY 4.0 | iNaturalist |
| Arched cory Brochis arcuata | Pia Helminen | CC BY 2.5 | Wikimedia Commons |
| Archerfish Toxotes jaculatrix | Donald Davesne | CC BY 4.0 | iNaturalist |
| Armoured bichir Polypterus delhezi | ばぶじ～ | CC BY-SA 4.0 | iNaturalist |
| Armoured stickleback Indostomus paradoxus | eric | CC BY 4.0 | iNaturalist |
| Arowana knifefish Papyrocranus afer | Cecep Rahmat | CC BY-SA 4.0 | iNaturalist |
| Arowana tetra Gnathocharax steindachneri | Clinton & Charles Robertson | CC BY 4.0 | iNaturalist |
| Arrow crab Stenorhynchus seticornis | Dan Schofield | CC BY 4.0 | iNaturalist |
| Arulius barb Dawkinsia arulius | Marcus Knight | CC BY 4.0 | iNaturalist |
| Asian gold clam Pilsbryoconcha exilis | Franz Anthony | CC BY 4.0 | iNaturalist |
| Asian red tailed catfish Hemibagrus wyckioides | FloUdon | CC BY-SA 3.0 | Wikimedia Commons |
| Asian stone catfish Hara jerdoni (museum specimen) | Fang, F | CC BY 4.0 | GBIF |
| Asian upside down catfish Mystus leucophasis | AngryBurmese | CC BY-SA 4.0 | iNaturalist |
| Aspidoras poecilus Aspidoras poecilus | 不保留任何权利, 由 Tsssss 上传 | CC0 1.0 | iNaturalist |
| Assassin snail Clea helena | Franz Anthony | CC BY 4.0 | iNaturalist |
| Astraea snail Lithopoma tectum | Jan Ebr & Ivana Ebrová | CC BY 4.0 | iNaturalist |
| Atlantic blue tang Acanthurus coeruleus | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Atlantic mudskipper Periophthalmus barbarus | Julien Renoult | CC BY 4.0 | iNaturalist |
| Atlantic scolymia Scolymia cubensis | Robin White | CC BY 4.0 | iNaturalist |
| Auratus cichlid Melanochromis auratus | Vlad Butsky from San Jose, CA, USA | CC BY 4.0 | iNaturalist |
| Australian amano shrimp Caridina typus | Jenni Ly | CC BY 4.0 | GBIF |
| Australian arowana Scleropages jardinii | Tom Ferguson | CC BY 4.0 | GBIF |
| Australian rainbowfish Melanotaenia fluviatilis | Greg Wallis | CC BY 4.0 | iNaturalist |
| Australian redclaw crayfish Cherax quadricarinatus | Iván Cumpián | CC BY 4.0 | GBIF |
| Australian scolymia Homophyllia australis | Susan Prior | CC BY 4.0 | iNaturalist |
| Axolotl Ambystoma mexicanum | Scazon | CC BY 2.0 | Wikimedia Commons |
| Azul peacock bass Cichla piquiti (museum specimen) | Douglas | CC BY 4.0 | Wikimedia Commons |
| Azure damsel Chrysiptera hemicyanea | Rickard Zerpe, osa oikeuksista pidätetään | CC BY 4.0 | iNaturalist |
| Bacopa australis Bacopa australis | Nicola Crockford | CC BY 4.0 | GBIF |
| Bacopa caroliniana Bacopa caroliniana | Alex Abair | CC BY 4.0 | iNaturalist |
| Bacopa lanigera Bacopa lanigera | Jane C Frost | CC BY 4.0 | GBIF |
| Bacopa monnieri Bacopa monnieri | 葉子 | CC0 1.0 | iNaturalist |
| Bacopa myriophylloides Bacopa myriophylloides (museum specimen) | N.F.O. Mota; R.M. Harley; A.M. Giulietti; J.R. Trindade | CC BY 4.0 | GBIF |
| Bala shark Balantiocheilos melanopterus | Eko Budi Kuncoro | CC BY 4.0 | iNaturalist |
| Bali green slimer Acropora yongei | Belinda Forbes | CC BY 4.0 | iNaturalist |
| Bamboo shrimp Atyopsis moluccensis | Faucon | CC BY-SA 4.0 | iNaturalist |
| Banana plant Nymphoides aquatica | Michelle W. （鍾偉瑋） | CC BY 4.0 | iNaturalist |
| Banded banjo catfish Platystacus cotylephorus | 5snake5 | CC0 | Wikimedia Commons |
| Banded coral shrimp Stenopus hispidus | Jean-Paul Boerekamps | CC0 1.0 | iNaturalist |
| Banded cory Scleromystax barbatus | Birger A | CC BY-SA 4.0 | iNaturalist |
| Banded gourami Trichogaster fasciata | Sandipan Das | CC BY 4.0 | iNaturalist |
| Banded headstander Synaptolaemus latofasciatus (museum specimen) | Gabriel Lelis Togni | CC BY 3.0 | Wikimedia Commons |
| Banded knifefish Gymnotus carapo | Lucas Mantelo Cruz | CC BY 4.0 | GBIF |
| Banded leporinus Leporinus fasciatus | Bernard DUPONT | CC BY-SA 4.0 | iNaturalist |
| Banded limia Limia vittata | Livebearerguy | CC BY-SA 4.0 | Wikimedia Commons |
| Banded pipefish Dunckerocampus dactyliophorus | Unknown author | CC0 1.0 | iNaturalist |
| Banded rainbowfish Melanotaenia trifasciata | Tom Ferguson | CC BY 4.0 | GBIF |
| Banded river loach Schistura schultzi (museum specimen) | Raredon, Sandra J. | CC0 1.0 | GBIF |
| Banded tiger loach Syncrossus helodes | Lerdsuwa | CC BY-SA 3.0 | Wikimedia Commons |
| Bandit cory Hoplisoma metae | Gonzalo Valenzuela | CC BY-SA 4.0 | iNaturalist |
| Banggai cardinalfish Pterapogon kauderni | Dan Schofield | CC BY 4.0 | iNaturalist |
| Banjo catfish Bunocephalus coracoideus | Kacper Aleksander | CC BY-SA 4.0 | Wikimedia Commons |
| Bar-tailed hoplo Megalechis picta (museum specimen) | Silva-Oliveira C, Canto ALC, Ribeiro FRV | CC BY 4.0 | Wikimedia Commons |
| Barred danio Devario pathirana (museum specimen) | Rupert A. Collins | CC BY 3.0 | Wikimedia Commons |
| Barred lamprologus Neolamprologus fasciatus (museum specimen) | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Barred pencilfish Nannostomus espei | SelEle-MS | CC BY-SA 4.0 | iNaturalist |
| Bartlett's anthias Nemanthias bartlettorum | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Batik nerite snail Neritina variegata (museum specimen) | Anders Hallan | CC BY 4.0 | GBIF |
| Batman betta Betta persephone | Parostoteles | CC BY-SA 4.0 | iNaturalist |
| Bay snook Petenia splendida | Hectonichus | CC BY-SA 3.0 | Wikimedia Commons |
| Bear paw clam Hippopus hippopus | Greg Tasney | CC BY-SA 4.0 | iNaturalist |
| Beardless barb Cyclocheilichthys apogon | Legawa, Everest C. | CC BY 4.0 | GBIF |
| Behn's damsel Neoglyphidodon nigroris | Jean-Paul Boerekamps | CC0 1.0 | iNaturalist |
| Bellus angelfish Genicanthus bellus | lwolfartist | CC BY 2.0 | Wikimedia Commons |
| Bengal danio Devario devario | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Bengal loach Botia dario | Sabarni Sarker | CC BY 4.0 | GBIF |
| Bent sea rod Eunicea flexuosa | Robin White | CC BY 4.0 | iNaturalist |
| Benthochromis tricoti Benthochromis tricoti | MidgleyDJ | CC BY-SA 4.0 | iNaturalist |
| Betta Betta splendens | Pariskanza | CC BY-SA 4.0 | Wikimedia Commons |
| Biara Rhaphiodon vulpinus (museum specimen) | Waltman30 | CC BY-SA 4.0 | Wikimedia Commons |
| Bicolor angelfish Centropyge bicolor | Bernard DUPONT | CC BY 4.0 | iNaturalist |
| Bicolor anthias Nemanthias bicolor | Izuzuki | CC BY-SA 3.0 | Wikimedia Commons |
| Bicolor blenny Ecsenius bicolor | Brian Gratwicke | CC BY 2.0 | Wikimedia Commons |
| Bicolor chromis Pycnochromis margaritifer | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Bicolor dottyback Pictichromis paccagnellae | desertnaturalist | CC BY 4.0 | iNaturalist |
| Big eyed synodontis Synodontis pleurops | John P Friel | CC BY 4.0 | iNaturalist |
| Big-eyed mouthbrooder Callochromis macrops | Zach Johnson | CC BY 4.0 | iNaturalist |
| Bird wrasse Gomphosus varius | Belinda Forbes | CC BY 4.0 | iNaturalist |
| Birdsnest coral Seriatopora hystrix | Jean-Paul Boerekamps | CC0 1.0 | iNaturalist |
| Black Amazon sword Echinodorus parviflorus (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Black arowana Osteoglossum ferreirai | Dương Vinh Hoàng | CC BY-SA 4.0 | iNaturalist |
| Black band cory Osteogaster zygata | Zappster | CC BY-SA 4.0 | iNaturalist |
| Black banded leporinus Leporinus affinis | No machine-readable author provided. Ltshears assumed (based on copyright claims). | Public domain | Wikimedia Commons |
| Black banded rainbowfish Melanotaenia nigrans | coenobita | CC BY 4.0 | iNaturalist |
| Black catfish Neosilurus ater | coenobita | CC BY 4.0 | iNaturalist |
| Black darter tetra Poecilocharax weitzmani | Clinton & Charles Robertson | CC BY 2.0 | Wikimedia Commons |
| Black devil snail Faunus ater | Abhimanyu.A | CC BY 4.0 | GBIF |
| Black diamond stingray Potamotrygon leopoldi | Andrey Butko | CC BY-SA 3.0 | Wikimedia Commons |
| Black ghost knifefish Apteronotus albifrons | Clinton & Charles Robertson | CC BY 4.0 | iNaturalist |
| Black ink barb Barbodes bunau (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Black kuhli loach Pangio oblonga | Frank M. Greco | CC BY 4.0 | iNaturalist |
| Black lancer catfish Bagrichthys macracanthus (museum specimen) | Chattarin patinattang | CC BY-SA 4.0 | Wikimedia Commons |
| Black lizard loach Balitoropsis zollingeri | Aqmal-Naser et al. (2023) | CC BY 4.0 | Wikimedia Commons |
| Black moor goldfish Carassius auratus | KDBlackmore | Public domain | Wikimedia Commons |
| Black neon tetra Hyphessobrycon herbertaxelrodi | Atulbhats | CC BY-SA 4.0 | iNaturalist |
| Black otocinclus Otothyropsis piribebuy | KushenLuthier | CC BY-SA 4.0 | iNaturalist |
| Black paradise fish Macropodus spechti | Andrew Bogott | CC BY-SA 4.0 | iNaturalist |
| Black phantom tetra Hyphessobrycon megalopterus | anonymous | CC BY-SA 4.0 | iNaturalist |
| Black piranha Serrasalmus rhombeus | Lucas Illanes | CC BY 4.0 | GBIF |
| Black ray goby Stonogobiops nematodes | Rickard Zerpe | CC BY 2.0 | Wikimedia Commons |
| Black ruby barb Pethia nigrofasciata | Ram-Man | CC BY-SA 4.0 | iNaturalist |
| Black skirt tetra Gymnocorymbus ternetzi | Juan R. Lascorz | CC BY-SA 3.0 | Wikimedia Commons |
| Black stripe dwarf cichlid Taeniacara candidi | Gogoschinski | Public domain | Wikimedia Commons |
| Black stripe tetra Hyphessobrycon melanostichos | Carvalho, Tiago Pinto; Bertaco, Vinicius Araújo | CC BY 4.0 | Wikimedia Commons |
| Black tiger dario Dario tigris | Nil NZ | CC BY-SA 4.0 | Wikimedia Commons |
| Black-axil chromis Chromis atripectoralis | Andrew Allen | CC BY 4.0 | iNaturalist |
| Black-barred silver dollar Myloplus schomburgkii | Photo by David J. Stang | CC BY-SA 4.0 | iNaturalist |
| Black-lined loach Ambastaia nigrolineata | Lerdsuwa | CC BY-SA 4.0 | iNaturalist |
| Blackbanded sunfish Enneacanthus chaetodon | Tino Strauss | CC BY-SA 4.0 | iNaturalist |
| Blackbelt cichlid Vieja maculicauda | Doronenko | CC BY 4.0 | iNaturalist |
| Blackcap basslet Gramma melacara | cello caruso-turiello | CC BY 4.0 | iNaturalist |
| Blackfin cory Hoplisoma leucomelas | karsten_s | CC BY 4.0 | Wikimedia Commons |
| Blacksail cory Hoplisoma melanistium | karsten_s | CC BY 4.0 | Wikimedia Commons |
| Blackthroat cichlid Astatheros macracanthus | Daniel Pineda Vera | CC BY 4.0 | iNaturalist |
| Blacktop cory Corydoras acutus | Frank M. Greco | CC BY 4.0 | iNaturalist |
| Blackwing hatchetfish Carnegiella marthae | Dulcimerist | CC BY-SA 4.0 | iNaturalist |
| Bladder snail Physella acuta | Smithsonian Environmental Research Center | CC BY 4.0 | iNaturalist |
| Bleeding blue tetra Hyphessobrycon margitae (museum specimen) | A. Zarske, D. Bork, H.J. Franke, illust. Jurgen Scholz | CC BY 4.0 | Wikimedia Commons |
| Bleeding heart tetra Hyphessobrycon erythrostigma | anonymous | CC BY-SA 4.0 | iNaturalist |
| Blind cave tetra Astyanax mexicanus | H. Zell | CC BY-SA 4.0 | iNaturalist |
| Blockhead cichlid Steatocranus casuarius | Original uploader was MidgleyDJ at en.wikipedia | CC BY-SA 4.0 | iNaturalist |
| Blonde naso tang Naso elegans | Derek Keats | CC BY 4.0 | iNaturalist |
| Bloodfin tetra Aphyocharax anisitsi | demianlescano | CC0 1.0 | iNaturalist |
| Blue acara Andinoacara pulcher | 5snake5 | CC0 | Wikimedia Commons |
| Blue amur Taiwanese bitterling Paracheilognathus himantegus | Frank M. Greco | CC BY 4.0 | iNaturalist |
| Blue assessor Assessor macneilli | Andrew J. Green / Reef Life Survey | CC BY 3.0 | Wikimedia Commons |
| Blue axelrodi rasbora Sundadanio axelrodi (museum specimen) | Rupert A. Collins | CC BY 3.0 | Wikimedia Commons |
| Blue badis Badis badis (museum specimen) | Ameet Mandavia | CC BY 4.0 | Wikimedia Commons |
| Blue band betta Betta enisae | Jos Koster | CC BY 4.0 | iNaturalist |
| Blue bandit cichlid Guianacara owroewefi | Julien Renoult | CC BY 4.0 | iNaturalist |
| Blue cheek apisto Apistogramma eunotus | Kullander, SO | CC BY 4.0 | GBIF |
| Blue danio Danio kerri | Lerdsuwa | CC BY-SA 3.0 | Wikimedia Commons |
| Blue danio (Devario interruptus) Devario interruptus (museum specimen) | Xiao Jiang Chen | CC BY 4.0 | Wikimedia Commons |
| Blue devil damsel Chrysiptera cyanea | James-LaFontaine | CC BY 4.0 | iNaturalist |
| Blue diamond tetra Alestopetersius smykalai (museum specimen) | GBIF contributor | CC BY-SA 4.0 | GBIF |
| Blue dolphin cichlid Cyrtocara moorii | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Blue dream betta Betta mahachaiensis | StarboundBettas | CC BY-SA 4.0 | Wikimedia Commons |
| Blue Egger's killifish Nothobranchius eggersi | Violaine2, France | CC BY-SA 4.0 | iNaturalist |
| Blue eye cichlid Cryptoheros cutteri | desertnaturalist | CC BY 4.0 | iNaturalist |
| Blue eye plecostomus Panaque cochliodon | smerikal | CC BY-SA 4.0 | iNaturalist |
| Blue fin Neolamprologus marunguensis | H. Zell | CC BY-SA 4.0 | iNaturalist |
| Blue firefly betta Betta dimidiata | R.J. Blach | CC BY-SA 4.0 | iNaturalist |
| Blue flash cichlid Thorichthys aureus | Cedricguppy - Loury Cédric | CC BY-SA 4.0 | iNaturalist |
| Blue gudgeon dartfish Ptereleotris heteroptera | zsispeo | CC BY-SA 2.0 | Wikimedia Commons |
| Blue hillstream trout Opsarius bernatziki (museum specimen) | AngryBurmese | CC BY-SA 4.0 | Wikimedia Commons |
| Blue jaw triggerfish Xanthichthys auromarginatus | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Blue Kong zebra crayfish Cherax alyciae | Lukhaup C, Eprilurahman R, von Rintelen T (2018) Two new species of crayfish of the genus Cherax from Indonesian New Guinea (Crustacea, Decapoda, Parastacidae). ZooKeys 769: 89-116. https://doi.org/10.3897/zookeys.769.26095 | CC BY 4.0 | Wikimedia Commons |
| Blue leg hermit crab Clibanarius tricolor | Jean-Paul Boerekamps | CC0 1.0 | iNaturalist |
| Blue linckia star Linckia laevigata | melianie_max_and_asker | CC BY 4.0 | iNaturalist |
| Blue moon crayfish Cherax boesemani (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Blue neon Paracyprichromis nigripinnis | Klaus Rudloff | CC BY-SA 4.0 | iNaturalist |
| Blue neon goby Stiphodon atropurpureus | 呂一起(Lyu yi-chi) | CC BY 4.0 | GBIF |
| Blue neon sheathfish Belodontichthys dinema | opencage | CC BY 4.0 | iNaturalist |
| Blue panchax Aplocheilus panchax | Sahat Ratmuangkhwang | CC BY 4.0 | iNaturalist |
| Blue panda dwarf cichlid Apistogramma panduro | Cisamarc | CC BY-SA 4.0 | iNaturalist |
| Blue pearl crayfish Cherax albidus (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Blue reef chromis Azurina cyanea | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Blue spotted hill trout Barilius bakeri (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Blue tang Paracanthurus hepatus | H. Krisp | CC BY 4.0 | iNaturalist |
| Blue tetra Knodus borki | Il le faut | CC BY-SA 4.0 | iNaturalist |
| Blue Victoria mouthbrooder Haplochromis nubilus | Laban Musinguzi, Vianny Natugonza, Monica Nsega | CC BY 4.0 | GBIF |
| Blue Zaire frontosa Cyphotilapia gibberosa | Edelmauswaldgeist | CC0 | Wikimedia Commons |
| Blue zebra hillstream loach Pseudogastromyzon fasciatus | angryphyco | CC BY 4.0 | iNaturalist |
| Blue-green chromis Chromis viridis | Roger Rittmaster | CC BY 4.0 | iNaturalist |
| Blue-spotted jawfish Opistognathus rosenblatti | Rhododendrites | CC BY-SA 4.0 | iNaturalist |
| Blueface angelfish Pomacanthus xanthometopon | Dr. Thomas Dörner | CC BY-SA 4.0 | iNaturalist |
| Bluefin notho Nothobranchius rachovii | P.H. Skelton | CC BY 4.0 | GBIF |
| Bluestreak cleaner wrasse Labroides dimidiatus | James-LaFontaine | CC BY 4.0 | iNaturalist |
| Blyxa japonica Blyxa japonica | 何小花 | CC BY 4.0 | GBIF |
| Boeseman's catfish Hoplisoma boesemani | karsten_s | CC BY 4.0 | Wikimedia Commons |
| Boesemani rainbowfish Melanotaenia boesemani | BFS Man | CC BY 4.0 | iNaturalist |
| Bolbitis Bolbitis heudelotii | Krzysztof Ziarnek, Kenraiz | CC BY-SA 4.0 | iNaturalist |
| Bolbitis heteroclita Bolbitis heteroclita | 謝麗霦 | CC BY 4.0 | GBIF |
| Bolivian chain sword Helanthium bolivianum | [1] | CC BY-SA 4.0 | iNaturalist |
| Bolivian ram Mikrogeophagus altispinosus | Gunnar Ries zwo | CC BY-SA 4.0 | iNaturalist |
| Bonita tetra Moenkhausia bonita (museum specimen) | Ota, Renata Rúbia; Deprá, Gabriel de Carvalho; Graça, Weferson Júnio da; Pavanelli, Carla Simone | CC BY 4.0 | Wikimedia Commons |
| Bordeaux betta Betta burdigala | YIE BABEL | CC BY-SA 4.0 | iNaturalist |
| Bornean leaffish Nandus nebulosus | Zakqary Roy | CC BY 4.0 | GBIF |
| Borneo hillstream loach Gastromyzon ctenocephalus | Frank M. Greco | CC BY 4.0 | iNaturalist |
| Borneo sucker loach Gastromyzon ornaticauda | Tan Heok Hui and Keith M. Martin-Smith | CC0 | Wikimedia Commons |
| Borneo tiger barb Puntigrus anchisporus | Dennis Lamczak | CC BY-SA 3.0 | Wikimedia Commons |
| Boxer crab Lybia tessellata | Dan Schofield | CC BY 4.0 | iNaturalist |
| Branching fire coral Millepora alcicornis | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Branching frogspawn coral Fimbriaphyllia paradivisa | Debra Baker | CC BY 4.0 | iNaturalist |
| Branching hammer coral Fimbriaphyllia paraancora | Dan Schofield | CC BY 4.0 | iNaturalist |
| Brazilian pennywort Hydrocotyle leucocephala | Eduardo Luis Beltrocco | CC BY 4.0 | iNaturalist |
| Brazilian sword (false aquatic) Spathiphyllum tasson | kristen_276 | CC0 1.0 | GBIF |
| Brazilian waterweed (najas) Egeria najas (museum specimen) | EVALDO BUTTURA (EVB) | CC BY 4.0 | GBIF |
| Brazos dwarf crayfish Cambarellus texanus | Dan Johnson | CC BY 4.0 | GBIF |
| Brevibora exilis Brevibora exilis | 何の権利も保有しない, Justin Philbois によって投稿されました | CC0 1.0 | iNaturalist |
| Brevis shell dweller Neolamprologus brevis | Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Brichard's syno Synodontis brichardi | Frank M. Greco | CC BY 4.0 | iNaturalist |
| Brilliant danio Danio meghalayensis | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Brilliant rasbora Rasbora einthovenii | -serwacy01- | CC BY-SA 4.0 | iNaturalist |
| Bristlenose pleco Ancistrus sp. | JanRehschuh | CC BY-SA 4.0 | iNaturalist |
| Brittan's rasbora Kottelatia brittani (museum specimen) | Håkansson, Mikael | CC BY 4.0 | GBIF |
| Broadleaf water sprite Ceratopteris cornuta | Augustin Soulard | CC BY 4.0 | GBIF |
| Brochis seussi Brochis seussi (museum specimen) | Claudio de Oliveira, Laboratório de Biologia e Genética de Peixes - UNESP - Botucatu | CC BY 3.0 | Wikimedia Commons |
| Broken line royal pleco Panaque sp. L191 | Whaldener Endo | CC0 1.0 | GBIF |
| Broken-line lyretail Aphyosemion ogoense | Andrew Bogott | CC BY-SA 4.0 | Wikimedia Commons |
| Broken-line tetra Hemigrammus ulreyi | Haplochromis | CC BY-SA 3.0 | Wikimedia Commons |
| Bronze corydoras Corydoras aeneus | Douglas Lopes | CC BY 4.0 | iNaturalist |
| Brown ghost knifefish Apteronotus leptorhynchus | Aidanreynolds03 | CC0 | Wikimedia Commons |
| Brown julie Julidochromis dickfeldi | regani | Public domain | Wikimedia Commons |
| Brown spike-tailed paradise fish Pseudosphromenus dayi | Carnat Joel | CC BY 4.0 | iNaturalist |
| Bubble coral Plerogyra sinuosa | Tom Heijnen | CC BY 4.0 | iNaturalist |
| Bubble eye goldfish Carassius auratus | Original uploader was Jordan Hartig at en.wikipedia | CC BY-SA 3.0 | Wikimedia Commons |
| Bubble tip anemone Entacmaea quadricolor | Alexander Vasenin | CC BY-SA 4.0 | iNaturalist |
| Bucktooth tetra Exodon paradoxus | Jonathan (Jon) Armbruster | CC BY 4.0 | iNaturalist |
| Buenos Aires tetra Hyphessobrycon anisitsi | Nicolas Olejnik | CC BY 4.0 | iNaturalist |
| Bumble bee snail Engina mendicaria (museum specimen) | Takaaki Hattori | CC BY 4.0 | iNaturalist |
| Bumblebee cichlid Pseudotropheus crabro | Nicolas COUTHOUIS | CC BY-SA 4.0 | iNaturalist |
| Bumblebee goby Brachygobius doriae | Dirk Godlinski | CC BY-SA 4.0 | iNaturalist |
| Bumblebee shrimp (Gnathophyllum americanum) Gnathophyllum americanum | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Burmese badis Badis ruber | BEDO (Thailand) | CC BY-SA 4.0 | iNaturalist |
| Burmese bumble bee barb Pethia tiantian | Kullander, SO | CC BY 4.0 | GBIF |
| Burmese caterpillar badis Badis pyema (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Burmese cloud archerfish Toxotes blythii | Tylwyth Eldar | CC BY-SA 4.0 | Wikimedia Commons |
| Burmese gold neon rasbora Rasbora paucisqualis | Zakqary Roy | CC BY 4.0 | GBIF |
| Burmese green neon cypris Danionella dracula | AngryBurmese | CC BY 4.0 | Wikimedia Commons |
| Burton's mouthbrooder Astatotilapia burtoni | (Image: Russell D. Fernald and Sabrina S. Burmeister) | CC BY 4.0 | iNaturalist |
| Butterfly goodeid Ameca splendens | Usien | CC0 | Wikimedia Commons |
| Butterfly loach Beaufortia kweichowensis | Daiju Azuma at http://opencage.info/pics/ | CC BY 2.5 | Wikimedia Commons |
| Butterfly pleco Dekeyseria picta | Alberto Alcalá | CC BY 4.0 | Wikimedia Commons |
| Button coral Cynarina lacrymalis | Debra Baker | CC BY 4.0 | iNaturalist |
| Button polyps (Palythoa grandis) Palythoa grandis | Susan Aide | CC BY 4.0 | iNaturalist |
| C005 pantanalensis cory Brochis pantanalensis | Christian Dresel http://www.aquaristikfreaks.de | CC BY-SA 4.0 | Wikimedia Commons |
| Cabbage leather coral Sinularia brassica | portioid | CC BY 4.0 | iNaturalist |
| Cabomba Cabomba caroliniana | Thomas Gyselinck | CC BY 4.0 | GBIF |
| Cactus coral Pavona cactus | portioid | CC BY 4.0 | iNaturalist |
| Cajun dwarf crayfish Cambarellus shufeldtii | Dan Johnson | CC BY 4.0 | GBIF |
| Caliendrum birdsnest coral Seriatopora caliendrum | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Calvus cichlid Altolamprologus calvus | 5snake5 | CC0 | Wikimedia Commons |
| Camel shrimp Rhynchocinetes durbanensis | 呂一起(Lyu yi-chi) | CC BY 4.0 | iNaturalist |
| Canara pearlspot cichlid Etroplus canarensis | Klaus Rudloff | CC BY-SA 4.0 | iNaturalist |
| Canary cheek Tropheus brichardi | Zach Johnson | CC BY 4.0 | iNaturalist |
| Canary fang blenny Meiacanthus oualanensis | Debra Baker | CC BY 4.0 | iNaturalist |
| Candy cane coral Caulastraea furcata | Debra Baker | CC BY 4.0 | iNaturalist |
| Candy stripe pleco Peckoltia vittata | Gabriel Lelis Togni | CC BY 4.0 | iNaturalist |
| Capricornis montipora Montipora capricornis | PilarMeca | CC BY 4.0 | iNaturalist |
| Caquetaia spectabilis Caquetaia spectabilis | Frank M Greco | CC BY 4.0 | iNaturalist |
| Cardinal plant Lobelia cardinalis | Liliana Ramírez-Freire | CC BY 4.0 | iNaturalist |
| Cardinal tetra Paracheirodon axelrodi | CHUCAO | CC BY-SA 4.0 | iNaturalist |
| Caribbean nerite snail Nerita fulgurans | Bob Peterson | CC BY-SA 4.0 | iNaturalist |
| Carnation tree coral Dendronephthya spp. | Tom Heijnen | CC BY 4.0 | iNaturalist |
| Carolina micro sword Lilaeopsis carolinensis | Scott Allen Davis | CC BY 4.0 | GBIF |
| Carpenter's flasher wrasse Paracheilinus carpenteri | Pierre Pericard | CC BY 4.0 | iNaturalist |
| Cascarudo Callichthys callichthys | Christian Ledergerber | CC0 1.0 | GBIF |
| Caudopunctatus cichlid Neolamprologus caudopunctatus (museum specimen) | Melanochromis | Public domain | Wikimedia Commons |
| Cauliflower coral Pocillopora damicornis | Susan Prior | CC BY 4.0 | iNaturalist |
| Cebu orange tail goby Sicyopus cebuensis | Laurent Pasteur | CC BY 3.0 | Wikimedia Commons |
| Celebes halfbeak Nomorhamphus liemi | Neale Monks | CC BY-SA 4.0 | iNaturalist |
| Celebes rainbowfish Marosatherina ladigesi | Carlos Eduardo Joos | CC BY 4.0 | iNaturalist |
| Celestial pearl danio Danio margaritatus | Lerdsuwa | CC BY-SA 4.0 | iNaturalist |
| Centipede knife Steatogenys elegans (museum specimen) | Clinton & Charles Robertson | CC BY 2.0 | Wikimedia Commons |
| Ceratopteris siliquosa Ceratopteris siliquosa (museum specimen) | R. L. Fleming | CC0 1.0 | GBIF |
| Ceylon killifish Aplocheilus dayi (museum specimen) | GBIF contributor | CC BY 4.0 | GBIF |
| Ceylonese combtail Belontia signata | Mickey Wu | CC BY 4.0 | GBIF |
| Chain moray Echidna catenata | Sebastián de Jesús Herrera Buenfil | CC BY 4.0 | iNaturalist |
| Chalice coral Echinophyllia aspera | Debra Baker | CC BY 4.0 | iNaturalist |
| Chalinochromis brichardi Chalinochromis brichardi | Entelognathus | CC BY-SA 4.0 | iNaturalist |
| Chalk bass Serranus tortugarum | Emőke Dénes | CC BY-SA 4.0 | iNaturalist |
| Chameleon loach Syncrossus beauforti | Lerdsuwa | CC BY-SA 3.0 | Wikimedia Commons |
| Checker barb Oliotius oligolepis | Zakqary Roy | CC BY 4.0 | iNaturalist |
| Cheetah squeaker cat Synodontis waterloti (museum specimen) | Jonathan (Jon) Armbruster | CC BY-SA 2.0 | Wikimedia Commons |
| Cherry barb Puntius titteya | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Cherry shrimp Neocaridina davidi | Greg III Espera | CC BY 4.0 | iNaturalist |
| Cherry spot rasbora Rasbora rubrodorsalis (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Cherub angelfish Centropyge argi | Unknown author | CC0 1.0 | iNaturalist |
| Chevron tang Ctenochaetus hawaiiensis | Cricket Raspet | CC BY 4.0 | iNaturalist |
| Chili rasbora Boraras brigittae | LeokaHU | CC BY-SA 4.0 | iNaturalist |
| Chinese algae eater Gyrinocheilus aymonieri | Gnushi | CC BY-SA 4.0 | iNaturalist |
| Chinese fire belly newt Cynops orientalis | Kennyannydenny | CC BY-SA 3.0 | Wikimedia Commons |
| Chinese sailfin sucker Myxocyprinus asiaticus | Paolo Neo | Public domain | Wikimedia Commons |
| Chipokee cichlid Melanochromis chipokae (museum specimen) | Kerry-Ann van der Walt | CC BY 4.0 | GBIF |
| Chocolate chip star Protoreaster nodosus | portioid | CC BY 4.0 | iNaturalist |
| Chocolate cichlid Hypselecara temporalis | Whaldener Endo | CC0 1.0 | GBIF |
| Chocolate frogmouth catfish Chaca bankanensis (museum specimen) | yoyobudiman | CC BY 3.0 | Wikimedia Commons |
| Chocolate gourami Sphaerichthys osphromenoides | Dennis White | CC0 1.0 | iNaturalist |
| Chocolate neon tetra Hyphessobrycon vilmae | Andrewbogott | CC BY-SA 4.0 | Wikimedia Commons |
| Christmas moss Vesicularia montagnei | Storm | CC BY-SA 4.0 | iNaturalist |
| Christmas wrasse Halichoeres ornatissimus | cello caruso-turiello | CC BY 4.0 | iNaturalist |
| Cichlasoma dimerus Cichlasoma dimerus | Zakqary Roy | CC BY 4.0 | GBIF |
| Cinnamon clownfish Amphiprion melanopus | Andrew J. Green / Reef life Survey. | CC BY 4.0 | iNaturalist |
| Citron clown goby Gobiodon citrinus | Juraj Ahel | CC BY 4.0 | iNaturalist |
| Clark's clownfish Amphiprion clarkii | Chris Spain | CC0 1.0 | iNaturalist |
| Clove polyps Clavularia spp. | Luca Davenport-Thomas | CC BY 4.0 | iNaturalist |
| Clown barb Barbodes dunckeri | Zakqary Roy | CC BY 4.0 | GBIF |
| Clown featherback Chitala ornata | BEDO (Thailand) | CC BY-SA 4.0 | iNaturalist |
| Clown killifish Epiplatys annulatus | Dornenwolf | CC BY 4.0 | iNaturalist |
| Clown lab Labidochromis chisumulae (museum specimen) | Zinzi Somana | CC BY 4.0 | GBIF |
| Clown loach Chromobotia macracanthus | Citron | CC BY-SA 4.0 | iNaturalist |
| Clown pleco Panaqolus maccus | Jarne Colman | CC0 | Wikimedia Commons |
| Clown rasbora Rasbora kalochroma | Factumquintus at German Wikipedia | CC BY-SA 3.0 | Wikimedia Commons |
| Clown synodontis Synodontis decorus | John P Friel | CC BY 4.0 | GBIF |
| Clown tang Acanthurus lineatus | Zsispeo | CC BY-SA 4.0 | iNaturalist |
| Clown triggerfish Balistoides conspicillum | Debra Baker | CC BY 4.0 | iNaturalist |
| Cobalt blue zebra cichlid Maylandia callainos | Lee Nachtigal | CC BY 4.0 | iNaturalist |
| Cochu's blue tetra Boehlkea fredcochui (museum specimen) | Axel Zarske & D. Bork | CC BY 4.0 | Wikimedia Commons |
| Cockatoo dwarf cichlid Apistogramma cacatuoides | Dornenwolf | CC BY 4.0 | iNaturalist |
| Colombian ramshorn apple snail Marisa cornuarietis | Dairo Escobar | CC BY 4.0 | GBIF |
| Colombian shark catfish Ariopsis seemanni | Xocolatl ( talk ) 18:01, 20 July 2013 (UTC) | CC BY-SA 3.0 | Wikimedia Commons |
| Colombian tetra Hyphessobrycon columbianus | Marrabbio2 | CC BY-SA 4.0 | iNaturalist |
| Comet Calloplesiops altivelis | Ioannis Magouras | CC BY 4.0 | iNaturalist |
| Common goldfish Carassius auratus | Hat theif | CC BY-SA 4.0 | Wikimedia Commons |
| Common pleco Pterygoplichthys pardalis | Ildar Sagdejev ( Specious ) | CC BY-SA 4.0 | Wikimedia Commons |
| Common whiptail catfish Rineloricaria eigenmanni | Ckf6412 | CC BY-SA 4.0 | Wikimedia Commons |
| Compressed cichlid Altolamprologus compressiceps | H. Zell | CC BY-SA 3.0 | Wikimedia Commons |
| Condy anemone Condylactis gigantea | LASZLO ILYES | CC BY 4.0 | iNaturalist |
| Congo puffer Tetraodon miurus | John P Friel | CC BY 4.0 | GBIF |
| Congo tetra Phenacogrammus interruptus | Andra Waagmeester | CC0 1.0 | iNaturalist |
| Congochromis dimidiatus Congochromis dimidiatus | Udo Vornhusen | CC BY-SA 4.0 | Wikimedia Commons |
| Congochromis sabinae Congochromis sabinae | Udo Vornhusen | CC BY-SA 3.0 | Wikimedia Commons |
| Convict cichlid Amatitlania nigrofasciata | Konstantin Gerasimov | CC BY 4.0 | iNaturalist |
| Convict tang Acanthurus triostegus | nmoorhatch | CC BY 4.0 | iNaturalist |
| Copadichromis azureus Copadichromis azureus | Greg Hume | CC BY-SA 3.0 | Wikimedia Commons |
| Copperband butterflyfish Chelmon rostratus | portioid | CC BY 4.0 | iNaturalist |
| Coral beauty angelfish Centropyge bispinosa | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Coral guard crab Trapezia spp. | Unknown author | CC0 1.0 | iNaturalist |
| Coral red pencilfish Nannostomus mortenthaleri | Brian Gratwicke | CC BY 2.0 | Wikimedia Commons |
| Corkscrew vallisneria (asiatica) Vallisneria asiatica | No machine-readable author provided. S.Tanaka~commonswiki assumed (based on copyright claims). | Public domain | Wikimedia Commons |
| Corky sea finger Briareum asbestinum | James St. John | CC BY 4.0 | iNaturalist |
| Corydoras kanei Hoplisoma kanei | Haplochromis | CC BY-SA 4.0 | iNaturalist |
| Costae tetra Moenkhausia costae (museum specimen) | Staatliche Naturwissenschaftliche Sammlungen Bayerns | CC BY-SA 3.0 | Wikimedia Commons |
| Court jester goby Koumansetta rainfordi | Debra Baker | CC BY 4.0 | iNaturalist |
| Crazy fish Butis butis | Nicola Crockford | CC BY 4.0 | GBIF |
| Creeping Jenny Lysimachia nummularia | Stanislav Murashkin | CC BY 4.0 | GBIF |
| Croaking gourami Trichopsis vittata | Abu Hamas | CC BY-SA 4.0 | iNaturalist |
| Crocea clam Tridacna crocea | Nhobgood | CC BY-SA 4.0 | iNaturalist |
| Crocodile toothpick Indostomus crocodilus | AverageWalrus | CC BY-SA 4.0 | Wikimedia Commons |
| Cross river pufferfish Tetraodon pustulatus (museum specimen) | Dotun55 | CC BY-SA 4.0 | Wikimedia Commons |
| Crosshatch triggerfish Xanthichthys mento | Robert Webster | CC BY-SA 4.0 | iNaturalist |
| Cryptocoryne affinis Cryptocoryne affinis (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Cryptocoryne albida Cryptocoryne albida (museum specimen) | Royal Botanic Garden Edinburgh | CC0 1.0 | GBIF |
| Cryptocoryne aponogetifolia Cryptocoryne aponogetifolia (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Cryptocoryne balansae Cryptocoryne crispatula var. balansae | Krzysztof Ziarnek, Kenraiz | CC BY-SA 4.0 | Wikimedia Commons |
| Cryptocoryne beckettii Cryptocoryne beckettii (museum specimen) | The University of Texas at Austin | CC BY 4.0 | GBIF |
| Cryptocoryne blassii Cryptocoryne cordata var. siamensis 'Blassii' | Krzysztof Ziarnek, Kenraiz | CC BY-SA 4.0 | Wikimedia Commons |
| Cryptocoryne ferruginea Cryptocoryne ferruginea (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Cryptocoryne lucens Cryptocoryne lucens (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Cryptocoryne lutea Cryptocoryne walkeri 'Lutea' | Hannob | CC0 | Wikimedia Commons |
| Cryptocoryne nurii Cryptocoryne nurii (museum specimen) | Conveyor Belt | CC0 1.0 | GBIF |
| Cryptocoryne parva Cryptocoryne parva (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Cryptocoryne pontederiifolia Cryptocoryne pontederiifolia | No machine-readable author provided. S.Tanaka~commonswiki assumed (based on copyright claims). | Public domain | Wikimedia Commons |
| Cryptocoryne pygmaea Cryptocoryne pygmaea (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Cryptocoryne retrospiralis Cryptocoryne retrospiralis | Siddarth Machado | CC BY 4.0 | iNaturalist |
| Cryptocoryne schulzei Cryptocoryne schulzei (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Cryptocoryne spiralis Cryptocoryne spiralis | 不保留任何权利, 由 S.MORE 上传 | CC0 1.0 | iNaturalist |
| Cryptocoryne striolata Cryptocoryne striolata (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Cryptocoryne thwaitesii Cryptocoryne thwaitesii (museum specimen) | Conveyor Belt | CC0 1.0 | GBIF |
| Cryptocoryne tonkinensis Cryptocoryne crispatula var. tonkinensis (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Cryptocoryne undulata Cryptocoryne undulata (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Cryptocoryne usteriana Cryptocoryne usteriana | Creepy Crawlies | CC BY 4.0 | iNaturalist |
| Cryptocoryne wendtii Cryptocoryne wendtii | Patrick Hacker | CC BY 4.0 | iNaturalist |
| Cryptocoryne x willisii Cryptocoryne × willisii | Hannob | CC0 | Wikimedia Commons |
| Cryptocoryne yujii Cryptocoryne yujii (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Crystal red shrimp Caridina cantonensis | Aiken Lau | CC0 1.0 | GBIF |
| Cuban cichlid Nandopsis tetracanthus | Robert Webster | CC BY-SA 4.0 | GBIF |
| Cuban hogfish Bodianus pulchellus | Cliff | CC BY 4.0 | iNaturalist |
| Cuckoo catfish Synodontis multipunctatus | Lee Nachtigal | CC BY 4.0 | iNaturalist |
| Cuphea anagalloidea Cuphea anagalloidea | Kudapan21 | CC BY 4.0 | Wikimedia Commons |
| Cupid cichlid Biotodoma cupido | Kullander, SO | CC BY 4.0 | GBIF |
| Cutleaf watermilfoil Myriophyllum pinnatum | laneneely | CC0 1.0 | GBIF |
| Cyperus helferi Cyperus helferi (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Cyphastrea Cyphastrea spp. | Ewout Knoester | CC BY-SA 4.0 | iNaturalist |
| Dadio Neochela dadiburjori | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Daffodil cichlid Neolamprologus pulcher | Guérin Nicolas ( messages ) | CC BY-SA 3.0 | Wikimedia Commons |
| Daisy's ricefish Oryzias woworae | Aquakeeper14 | CC BY-SA 3.0 | Wikimedia Commons |
| Danae montipora Montipora danae | Unknown author | CC0 1.0 | iNaturalist |
| Dawn tetra Aphyocharax nattereri (museum specimen) | Karl Heinz Lüling | CC BY-SA 4.0 | Wikimedia Commons |
| Deepwater hap Placidochromis electra | Paolo Neo | Public domain | Wikimedia Commons |
| Deissner's liquorice gourami Parosphromenus deissneri | Parostoteles | CC BY-SA 4.0 | iNaturalist |
| Delicate blue eye rainbow Pseudomugil tenellus | Tom Ferguson | CC BY 4.0 | GBIF |
| Delta arrowhead Sagittaria platyphylla | Mark Clarke | CC BY 4.0 | GBIF |
| Demasoni cichlid Pseudotropheus demasoni | Lee Nachtigal | CC BY 4.0 | iNaturalist |
| Dendrophyllia coral Dendrophyllia sp. | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Denison barb Sahyadria denisonii | Dennis White | CC0 1.0 | iNaturalist |
| Derasa clam Tridacna derasa | Geoff Shuetrim | CC BY 4.0 | iNaturalist |
| Descamp's strange-tooth cichlid Ectodus descampsii (museum specimen) | Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Desert goby Chlamydogobius eremius | Em Lamond | CC BY 4.0 | GBIF |
| Devil's hand leather coral Lobophytum spp. | Philippe Bourjon | CC BY-SA 4.0 | iNaturalist |
| Diadem dottyback Pictichromis diadema | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Diamond tetra Moenkhausia pittieri | SOK | CC BY-SA 4.0 | iNaturalist |
| Diamond watchman goby Valenciennea puellaris | Chris Spain | CC0 1.0 | iNaturalist |
| Diana's hogfish Bodianus diana | Storm Martin | CC BY 4.0 | iNaturalist |
| Digitata montipora Montipora digitata | Thomas Mesaglio | CC BY 4.0 | iNaturalist |
| Discosoma mushroom Discosoma spp. | Nhobgood | CC BY-SA 4.0 | iNaturalist |
| Discus Symphysodon spp. | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Dispar anthias Nemanthias dispar | Micha Baum | CC BY-SA 4.0 | iNaturalist |
| Doctor fish Garra rufa | Dances | CC BY-SA 4.0 | iNaturalist |
| Dogface puffer Arothron nigropunctatus | portioid | CC BY 4.0 | iNaturalist |
| Dogtooth cichlid Cynotilapia afra | Alexandra Tyers | CC BY-SA 4.0 | iNaturalist |
| Dojo loach Misgurnus anguillicaudatus | Kim, Hyun-tae | CC BY 4.0 | iNaturalist |
| Domino damsel Dascyllus trimaculatus | Izuzuki | CC BY 4.0 | iNaturalist |
| Double line lizard loach Homaloptera bilineata | S. Kulabtong | CC BY 3.0 | Wikimedia Commons |
| Dragon wrasse Novaculichthys taeniourus | Don Loarie | CC BY 4.0 | iNaturalist |
| Drape fin barb Oreichthys crenuchoides | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Driftwood catfish Trachelyopterus fisheri | Ckf6412 | CC0 | Wikimedia Commons |
| Duboulayi's rainbowfish Melanotaenia duboulayi | MurkySeb | CC BY-SA 4.0 | Wikimedia Commons |
| Duckbill catfish Sorubim lima | demianlescano | CC0 1.0 | GBIF |
| Duckweed Lemna minor | Philipp | CC0 1.0 | iNaturalist |
| Duncan coral Duncanopsammia axifuga (museum specimen) | J W Wells | CC BY 4.0 | GBIF |
| Duplicate cory Hoplisoma duplicareum | Marek Kriz | CC BY 3.0 | Wikimedia Commons |
| Dusky nerite Neritina pulligera (museum specimen) | Joop Trausel | Frans Slieker | CC BY 4.0 | GBIF |
| Dwarf amber barb Barboides gracilis (museum specimen) | Norén, M | CC BY 4.0 | GBIF |
| Dwarf baby tears Hemianthus callitrichoides 'Cuba' (museum specimen) | Conveyor Belt | CC0 1.0 | GBIF |
| Dwarf barb Pethia phutunio (museum specimen) | Fang, F | CC BY 4.0 | GBIF |
| Dwarf chain loach Ambastaia sidthimunki | Lerdsuwa | CC BY-SA 4.0 | iNaturalist |
| Dwarf chain sword (quadricostatus) Helanthium quadricostatum | Haplochromis | CC BY-SA 3.0 | Wikimedia Commons |
| Dwarf Egyptian mouth-brooder Pseudocrenilabrus multicolor | Julian Matz ( talk ) | CC BY-SA 3.0 | Wikimedia Commons |
| Dwarf flag acara Laetacara curviceps | Dnoerholm | CC BY-SA 4.0 | Wikimedia Commons |
| Dwarf gourami Trichogaster lalius | Debivort at English Wikipedia | CC BY-SA 3.0 | Wikimedia Commons |
| Dwarf hairgrass Eleocharis acicularis | Stefan.lefnaer | CC BY-SA 4.0 | Wikimedia Commons |
| Dwarf Indian mudskipper Periophthalmus novemradiatus | JSutton93 | CC BY-SA 4.0 | Wikimedia Commons |
| Dwarf Japanese rush Acorus gramineus 'Pusillus' | Kalvin Chan | CC BY 4.0 | GBIF |
| Dwarf merry widow Phallichthys tico | Livebearerguy | CC BY-SA 4.0 | Wikimedia Commons |
| Dwarf molly Poecilia chica | Charliemouse69 | CC BY-SA 4.0 | Wikimedia Commons |
| Dwarf neon rainbowfish Melanotaenia praecox | Francisco Eliel | CC BY 4.0 | iNaturalist |
| Dwarf orange crayfish Cambarellus patzcuarensis | Carnat Joel | CC BY 4.0 | iNaturalist |
| Dwarf parrot's feather Myriophyllum papillosum | Richard Hartland | CC BY 4.0 | GBIF |
| Dwarf pencilfish Nannostomus marginatus | Kullander, SO | CC BY 4.0 | GBIF |
| Dwarf pike cichlid Crenicichla compressiceps (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Dwarf rainbowfish Melanotaenia maccullochi | Jesse de Vries | CC BY 4.0 | GBIF |
| Dwarf rasbora Boraras maculatus | Atulbhats | CC BY-SA 4.0 | Wikimedia Commons |
| Dwarf sagittaria Sagittaria subulata | mfeaver | CC BY 4.0 | iNaturalist |
| Dwarf scissortail rasbora Rasbosoma spilocerca | Lerdsuwa | CC BY-SA 3.0 | Wikimedia Commons |
| Dwarf seahorse Hippocampus zosterae | Isaac Chacón | CC BY 4.0 | iNaturalist |
| Dwarf spotted danio Danio nigrofasciatus (museum specimen) | Fang, F | CC BY 4.0 | GBIF |
| Dwarf vallisneria Vallisneria nana (museum specimen) | Jobson, R.W.|Baleeiro, P.C. | CC BY 4.0 | GBIF |
| Dwarf water clover Marsilea crenata | Quentin Groom | CC0 1.0 | GBIF |
| Dwarf water lily Nymphaea nouchali (stellata) | Davi Eduardo | CC BY 4.0 | GBIF |
| Dwarf yellow tail eel Macrognathus pancalus | Sabarni Sarker | CC BY 4.0 | GBIF |
| Dwarf zebra hermit crab Calcinus laevimanus | Scott Loarie | CC0 1.0 | iNaturalist |
| Dwarf zipper kuhli loach Pangio cuneovirgata | rukai95 | CC BY 4.0 | iNaturalist |
| Eastern rainbowfish Melanotaenia splendida | Tom Ferguson | CC BY 4.0 | GBIF |
| Echinata acropora Acropora echinata | Debra Baker | CC BY 4.0 | iNaturalist |
| Echinodorus 'Aflame' Echinodorus 'Aflame' | Take a photo T.Seiichi | CC BY-SA 3.0 | Wikimedia Commons |
| Echinodorus argentinensis Echinodorus argentinensis (museum specimen) | Universidade Federal Rural do Rio de Janeiro (RBR) | CC BY 4.0 | GBIF |
| Echinodorus horizontalis Echinodorus horizontalis (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Echinodorus magdalenensis Echinodorus magdalenensis (museum specimen) | Ingrid P. Lin | CC0 1.0 | GBIF |
| Echinopora Echinopora lamellosa | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Ehrhardt's corydoras Hoplisoma ehrhardti (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Eibl's angelfish Centropyge eibli | jeyre | CC BY 4.0 | iNaturalist |
| El norte Gymnogeophagus terrapurpura | Marcelo Loureiro | CC BY-SA 4.0 | Wikimedia Commons |
| Elatine hydropiper Elatine hydropiper | Jindřich Soukup | CC0 1.0 | GBIF |
| Electric blue crayfish Procambarus alleni | Nathan Daly | CC BY 4.0 | iNaturalist |
| Electric blue hap Sciaenochromis fryeri | Ged 02 | CC BY-SA 4.0 | iNaturalist |
| Electric blue johanni Melanochromis cyaneorhabdos | Cezary Porycki | CC BY 4.0 | iNaturalist |
| Electric orange hermit crab Calcinus elegans | Lisa Bennett | CC BY 4.0 | iNaturalist |
| Elegance coral Catalaphyllia jardinei | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Elegant cory Gastrodermus elegans | User:Toniher | CC BY 2.5 | Wikimedia Commons |
| Elegant pencilfish Nannostomus limatus (museum specimen) | Natural History Museum | CC BY 4.0 | Wikimedia Commons |
| Elegant rasbora Rasbora elegans (museum specimen) | CheongWeei Gan | CC BY 4.0 | Wikimedia Commons |
| Eleocharis pusilla Eleocharis pusilla | Tommy Forrest | CC0 1.0 | GBIF |
| Elephant ear mushroom Amplexidiscus fenestrafer | Anne Hoggett | CC BY 4.0 | iNaturalist |
| Elephant skin coral Mycedium elephantotus | Debra Baker | CC BY 4.0 | iNaturalist |
| Elephantnose fish Gnathonemus petersii | John P Friel | CC BY 4.0 | iNaturalist |
| Ember tetra Hyphessobrycon amandae | Gordon Axmann | CC BY-SA 3.0 | Wikimedia Commons |
| Emerald betta Betta smaragdina | -- Acapella 09:31, 31 December 2006 (UTC) | CC BY-SA 3.0 | Wikimedia Commons |
| Emerald crab Mithraculus sculptus | Mark Loch | CC BY-SA 4.0 | iNaturalist |
| Emerald dwarf rasbora Danio erythromicron | Kullander, SO | CC BY 4.0 | GBIF |
| Emerald green cory Brochis splendens | NonstickRon | CC BY-SA 2.0 | Wikimedia Commons |
| Emperor angelfish Pomacanthus imperator | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Emperor cichlid Boulengerochromis microlepis | Dan Koehl | CC BY 4.0 | iNaturalist |
| Emperor loach Botia udomritthiruji | Lerdsuwa | CC BY-SA 3.0 | Wikimedia Commons |
| Emperor tetra Nematobrycon palmeri | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Empire gudgeon Hypseleotris compressa | Tom Ferguson | CC BY 4.0 | GBIF |
| Endler's livebearer Poecilia wingei | Dgrummon | CC BY-SA 4.0 | iNaturalist |
| Engineer goby Pholidichthys leucotaenia | portioid | CC BY 4.0 | iNaturalist |
| Eriocaulon cinereum Eriocaulon cinereum | Thomas Mesaglio | CC BY 4.0 | GBIF |
| Evansi anthias Mirolabrichthys evansi | Unknown author | CC0 1.0 | iNaturalist |
| Everglades pygmy sunfish Elassoma evergladei | Steven Wang | CC BY 4.0 | GBIF |
| Exclamation barb Dawkinsia exclamatio | Rahul Gautam | CC BY 4.0 | Wikimedia Commons |
| Exesa horn coral Hydnophora exesa | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Exquisite fairy wrasse Cirrhilabrus exquisitus | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Eyespot gourami Parasphaerichthys ocellatus | Gerhard Ott | CC BY 3.0 | Wikimedia Commons |
| Eyespot rasbora Brevibora dorsiocellata (museum specimen) | GBIF contributor | CC BY-SA 4.0 | GBIF |
| Fahaka puffer Tetraodon lineatus | Andrey Butko | CC BY-SA 4.0 | Wikimedia Commons |
| Fairy cichlid Biotoecus opercularis (museum specimen) | Clinton & Charles Robertson | CC BY 2.0 | Wikimedia Commons |
| Fairy cory Hoplisoma atropersonatum | MaurizioCorydoras | CC BY-SA 4.0 | Wikimedia Commons |
| Falco hawkfish Cirrhitichthys falco | cello caruso-turiello | CC BY 4.0 | iNaturalist |
| False bandit cory Hoplisoma melini | Frank M Greco | CC BY 3.0 | Wikimedia Commons |
| False blochi catfish Brochis delphax | Frank M. Greco | CC BY 3.0 | Wikimedia Commons |
| False network cory Brochis sodalis (museum specimen) | Hongslo, T | CC BY 4.0 | GBIF |
| False rummy-nose tetra Petitella georgiae | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| False Siamese algae eater Ceratogarra cambodgiensis | Julian Matz ( talk ). Original uploader was Jmatz at en.wikipedia | CC BY-SA 3.0 | Wikimedia Commons |
| False x-ray tetra Hyphessobrycon simulatus | Julien Renoult | CC BY 4.0 | GBIF |
| False yellowjacket cichlid Parachromis motaguensis | Carlos Funes | CC BY 4.0 | GBIF |
| Favia brain coral Dipsastraea favus (museum specimen) | CSIRO RV Southern Surveyor | CC BY 4.0 | GBIF |
| Favites brain coral Favites sp. | Debra Baker | CC BY 4.0 | iNaturalist |
| Featherfin Ophthalmotilapia ventralis | Amada44 | CC BY-SA 3.0 | Wikimedia Commons |
| Featherfin cichlid Cyathopharynx furcifer | User:Haplochromis | CC BY-SA 3.0 | Wikimedia Commons |
| Featherfin synodontis Synodontis eupterus | Gourami Watcher | CC BY-SA 4.0 | iNaturalist |
| Fenestratus hap Protomelas fenestratus | Klaus Rudloff | CC BY-SA 4.0 | Wikimedia Commons |
| Festivum Mesonauta festivus | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Fighting conch Strombus pugilis (museum specimen) | Robin White | CC BY 4.0 | iNaturalist |
| Figure 8 puffer Tetraodon biocellatus | Gee | CC BY 4.0 | iNaturalist |
| Filament barb Dawkinsia filamentosa | 蝗莺 | CC0 1.0 | GBIF |
| Finger leather coral Sclerophytum flexibile | Tia Offner | CC BY 4.0 | iNaturalist |
| Fire eel Mastacembelus erythrotaenia | Jesaya Li | CC BY 4.0 | iNaturalist |
| Fire rasbora Rasboroides vaterifloris (museum specimen) | Rupert A. Collins | CC BY 3.0 | Wikimedia Commons |
| Fire shrimp Lysmata debelius | Attila Oláh | CC BY 4.0 | iNaturalist |
| Fire-eyed loach Barbucca diabolica | Zakqary Roy | CC BY 4.0 | GBIF |
| Firefish Nemateleotris magnifica | cello caruso-turiello | CC BY 4.0 | iNaturalist |
| Firefly loach Schistura devdevi (museum specimen) | University of Kansas Biodiversity Institute | CC BY 4.0 | GBIF |
| Firemouth cichlid Thorichthys meeki | Konstantin Gerasimov | CC BY 4.0 | iNaturalist |
| Five star general Hemichromis elongatus | Robert Taylor | CC BY 4.0 | GBIF |
| Five-banded barb Desmopuntius pentazona | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| Flag cichlid Mesonauta insignis | Clinton & Charles Robertson from RAF Lakenheath, UK & San Marcos, TX, USA & UK | CC BY 2.0 | Wikimedia Commons |
| Flag tetra Hyphessobrycon heterorhabdus (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Flagfin angelfish Apolemichthys trimaculatus | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Flagtail catfish Dianema urostriatum | Haplochromis | Public domain | Wikimedia Commons |
| Flagtail characin Semaprochilodus taeniurus | Traumrune | CC BY-SA 3.0 | Wikimedia Commons |
| Flagtail prochilodus Semaprochilodus insignis | Mehgan Murphy | CC0 | Wikimedia Commons |
| Flame angelfish Centropyge loriculus | Andreas März | CC BY 4.0 | iNaturalist |
| Flame hawkfish Neocirrhites armatus | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Flame rainbow Callochromis pleurospilus (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Flame red badis Dario hysginon | Kullander, SO | CC BY 4.0 | GBIF |
| Flame tetra Hyphessobrycon flammeus | Joel Bez | CC BY 2.0 | Wikimedia Commons |
| Flame-back bleeding heart tetra Hyphessobrycon pyrrhonotus | Thomnight | CC BY-SA 4.0 | iNaturalist |
| Flameback angelfish Centropyge acanthops | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Flaming arrow goby Sicyopus zosterophorus | Laurent Pasteur | CC BY 3.0 | Wikimedia Commons |
| Flat Borneo sucker loach Hypergastromyzon humilis | Brent Tibbatts | CC BY 3.0 | Wikimedia Commons |
| Floating fern Salvinia natans | Sergey Basalaev | CC BY 4.0 | GBIF |
| Floating water sprite Ceratopteris pteridoides | Lauren Bosch | CC0 1.0 | GBIF |
| Flowerhorn Amphilophus hybrid | Lerdsuwa | CC BY-SA 4.0 | iNaturalist |
| Flowerpot coral Goniopora stokesi (museum specimen) | CSIRO RV Southern Surveyor | CC BY 4.0 | GBIF |
| Fly River rainbowfish Melanotaenia sexlineata | Dirk Godlinski | CC BY-SA 3.0 | Wikimedia Commons |
| Flying fox Epalzeorhynchos kalopterus | Mirko Hartig | CC BY-SA 4.0 | iNaturalist |
| Foersch's barb Desmopuntius foerschi (museum specimen) | Rupert A. Collins | CC BY 3.0 | Wikimedia Commons |
| Foersch's killi Nothobranchius foerschi | Jokuyken15 | CC BY 4.0 | Wikimedia Commons |
| Forest halfbeak Hemirhamphodon pogonognathus | Zakqary Roy | CC BY 4.0 | GBIF |
| Fork-tailed loach Vaillantella maassi (museum specimen) | Rukai95 | CC BY 4.0 | Wikimedia Commons |
| Forktail blue-eye Pseudomugil furcatus | Dirk Godlinski | CC BY-SA 4.0 | iNaturalist |
| Fossorochromis rostratus Fossorochromis rostratus | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| Four-eyed fish Anableps anableps | Paul Prior | CC BY 4.0 | GBIF |
| Four-leaf water clover Marsilea quadrifolia | Ljaž | CC BY 4.0 | GBIF |
| Four-line wrasse Pseudocheilinus tetrataenia | Debra Baker | CC BY 4.0 | iNaturalist |
| Four-stripe damsel Dascyllus melanurus | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Fowler's cory Corydoras fowleri | karsten_s | CC BY 4.0 | Wikimedia Commons |
| Foxface rabbitfish Siganus vulpinus | Andreas März | CC BY 4.0 | iNaturalist |
| Freckled hawkfish Paracirrhites forsteri | Debra Baker | CC BY 4.0 | iNaturalist |
| Freiberg's peacock Aulonocara jacobfreibergi | Riftreef | CC BY-SA 4.0 | iNaturalist |
| French angelfish Pomacanthus paru | LASZLO ILYES | CC BY 4.0 | iNaturalist |
| Freshwater clam Corbicula fluminea | Björn S... | CC BY-SA 4.0 | iNaturalist |
| Freshwater limpet Septaria porcellana | Jessica Utrup | CC BY 4.0 | GBIF |
| Freshwater needlefish Xenentodon cancila | Sabarni Sarker | CC BY 4.0 | GBIF |
| Freshwater pipefish Doryichthys martensii (museum specimen) | Andrew Bogott | CC BY-SA 4.0 | Wikimedia Commons |
| Frogmouth catfish Chaca chaca | Sandipan Das | CC BY 4.0 | GBIF |
| Frogspawn coral Fimbriaphyllia divisa | TonyT | CC BY 4.0 | iNaturalist |
| Frontosa cichlid Cyphotilapia frontosa | Jeff Kubina | CC BY-SA 4.0 | iNaturalist |
| Fuelleborn's cichlid Labeotropheus fuelleborni | Jan Rehschuh | Public domain | Wikimedia Commons |
| Fundulopanchax scheeli Fundulopanchax scheeli | Violaine2, France | CC BY-SA 3.0 | Wikimedia Commons |
| Fundulopanchax spoorenbergi Fundulopanchax spoorenbergi | Tommy Kronkvist | CC BY-SA 4.0 | Wikimedia Commons |
| Fusco Nimbochromis fuscotaeniatus | Ed Schipul | CC BY-SA 2.0 | Wikimedia Commons |
| Fuzzy dwarf lionfish Neochirus brachyptera | Unknown author | CC0 1.0 | iNaturalist |
| Galaxy coral Galaxea fascicularis | portioid | CC BY 4.0 | iNaturalist |
| Gangetic loach Botia rostrata (museum specimen) | Hamid Badar Osmany | CC BY 3.0 | Wikimedia Commons |
| Gar characin Ctenolucius hujeta | desertnaturalist | CC BY 4.0 | GBIF |
| Gardneri killifish Fundulopanchax gardneri | Violaine2, France | CC BY-SA 4.0 | iNaturalist |
| Garnet tetra Holopristis pulchra | Jofre | CC BY-SA 3.0 | Wikimedia Commons |
| Gay's pondweed Potamogeton gayi (museum specimen) | L.S. Leoni | CC BY 4.0 | GBIF |
| Gem tang Zebrasoma gemmatum | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Geoffrey's corydora Corydoras geoffroy | karsten_s | CC BY 4.0 | Wikimedia Commons |
| Geophagus altifrons Geophagus altifrons | Bill Merkley | CC BY 4.0 | iNaturalist |
| Geophagus cf. brachybranchus Geophagus brachybranchus | Chrumps | CC BY-SA 4.0 | Wikimedia Commons |
| Geophagus megasema Geophagus megasema | Vincent A. Vos | CC BY 4.0 | GBIF |
| Geophagus neambi Geophagus neambi (museum specimen) | MChGilbert | CC BY-SA 4.0 | Wikimedia Commons |
| Geophagus proximus Geophagus proximus | Kullander, SO | CC BY 4.0 | GBIF |
| German blue ram Mikrogeophagus ramirezi | Frank M Greco | CC BY 4.0 | iNaturalist |
| Ghost shrimp Palaemon paludosus | Smithsonian Environmental Research Center | CC BY 4.0 | iNaturalist |
| Giant ambulia Limnophila aquatica | Andreus Felipen | CC BY-SA 3.0 | Wikimedia Commons |
| Giant baby tears Micranthemum umbrosum | Daniel Patterson | CC BY 4.0 | GBIF |
| Giant barracuda Elopichthys bambusa (museum specimen) | Ylica | CC0 | Wikimedia Commons |
| Giant bumblebee catfish Pseudopimelodus bufonius | Frank M. Greco | CC BY 3.0 | Wikimedia Commons |
| Giant carpet anemone Stichodactyla gigantea | ꦥꦤ꧀ꦗꦶꦒꦸꦱ꧀ꦠꦶꦄꦏ꧀ꦧꦂ | CC BY 4.0 | iNaturalist |
| Giant danio Devario aequipinnatus | Rohit Naniwadekar | CC BY 4.0 | iNaturalist |
| Giant duckweed Spirodela polyrhiza | Robert H. Wardell | CC0 1.0 | GBIF |
| Giant emerald eye rasbora Brevibora cheeya | Zakqary Roy | CC BY 4.0 | GBIF |
| Giant gourami Osphronemus goramy | Abdul Hanif Arromy | CC BY 4.0 | GBIF |
| Giant hairgrass Eleocharis montevidensis | Mike Butler | CC BY 4.0 | GBIF |
| Giant kuhli loach Pangio myersi (museum specimen) | Raredon, Sandra J. | CC0 1.0 | GBIF |
| Giant otocinclus catfish Hypoptopoma gulare | Kullander, SO | CC BY 4.0 | GBIF |
| Giant pikehead Luciocephalus pulcher | BEDO (Thailand) | CC BY-SA 4.0 | Wikimedia Commons |
| Giant prawn Macrobrachium spinipes | Kristof Zyskowski | CC BY 4.0 | GBIF |
| Giant puffer Tetraodon mbu | John P Friel | CC BY 4.0 | GBIF |
| Giant raphael catfish Megalodoras uranoscopus | Allan Harris | CC0 1.0 | GBIF |
| Giant red bacopa Bacopa madagascariensis (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Giant red rotala Rotala macrandra (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Giant red sparkling licorice gourami Parosphromenus opallios (museum specimen) | Royal Ontario Museum | CC BY 4.0 | Wikimedia Commons |
| Giant red tail gourami Osphronemus laticlavius | Vassil | CC0 | Wikimedia Commons |
| Giant sailfin molly Poecilia velifera | Nick T. | CC BY-SA 4.0 | GBIF |
| Giant sparkling gourami Trichopsis schalleri | Wutthichayapartith Rasvara Nangkasamarinile | CC BY 4.0 | GBIF |
| Giant tigerfish Hydrocynus goliath | 116916927065934112165 | CC BY 4.0 | GBIF |
| Giant tower cap snail Brotia herculea (museum specimen) | H. Zell | CC BY-SA 3.0 | Wikimedia Commons |
| Giant vallisneria Vallisneria gigantea (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Giraffe catfish Auchenoglanis occidentalis | Liné1 | CC BY-SA 3.0 | Wikimedia Commons |
| Glass barb Pethia guganio (museum specimen) | University of Kansas Biodiversity Institute | CC BY 4.0 | GBIF |
| Glass bloodfin tetra Prionobrama filigera | Chronotopian | CC BY-SA 3.0 | Wikimedia Commons |
| Glass catfish Kryptopterus vitreolus | Sonni | CC BY 4.0 | iNaturalist |
| Glass knifefish Eigenmannia virescens | Pablo H Capovilla | CC BY 4.0 | GBIF |
| Glossostigma Glossostigma elatinoides | Chris Parminter | CC BY 4.0 | GBIF |
| Glowlight danio Danio choprae | Neale Monks at English Wikipedia | CC BY-SA 3.0 | Wikimedia Commons |
| Glowlight rasbora Trigonostigma hengeli | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| Glowlight tetra Hemigrammus erythrozonus | Tetra_Glowlight.jpg | CC BY 4.0 | iNaturalist |
| Gnathochromis permaxillaris Gnathochromis permaxillaris | The original uploader was MidgleyDJ at English Wikipedia . | CC BY-SA 2.5 | Wikimedia Commons |
| Gold banded coral shrimp Stenopus scutellatus | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Gold barb Barbodes semifasciolatus | Nguyen DInh Tao | CC BY 4.0 | iNaturalist |
| Gold clown barb Pethia canius | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Gold convict cichlid Amatitlania nanolutea | Micropteron | CC BY-SA 4.0 | Wikimedia Commons |
| Gold neon dwarf goby Stiphodon percnopterygionus | Laurent Pasteur | CC BY 3.0 | Wikimedia Commons |
| Gold nugget pleco Baryancistrus xanthellus | Tylwyth Eldar | CC BY-SA 4.0 | Wikimedia Commons |
| Gold pygmy horseface loach Kottelatlimia pristes | Zakqary Roy | CC BY 4.0 | GBIF |
| Gold ring danio Danio tinwini | AverageWalrus | CC BY-SA 4.0 | Wikimedia Commons |
| Gold ring hillstream loach Sewellia albisuera (museum specimen) | GBIF contributor | CC BY-SA 4.0 | GBIF |
| Gold zebra catfish Brachyplatystoma juruense | Fábio Olmos | CC BY 4.0 | GBIF |
| Gold-spotted rabbitfish Siganus punctatus | Roger Rittmaster | CC BY 4.0 | iNaturalist |
| Goldbreast goodeid Ilyodon furcidens | Andrewbogott | CC BY-SA 3.0 | Wikimedia Commons |
| Goldbreast zebra Maylandia fainzilberi (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Golden belly barb Hypsibarbus wetmorei | Dr. Nasser Halaweh | CC BY 4.0 | GBIF |
| Golden cloud pleco Scobinancistrus pariolispos (museum specimen) | Gabriel Lelis Togni | CC BY 3.0 | Wikimedia Commons |
| Golden Congo tetra lefini Phenacogrammus aurantiacus | Tylwyth Eldar | CC BY-SA 4.0 | Wikimedia Commons |
| Golden damsel Amblyglyphidodon aureus | Pierre Pericard | CC BY 4.0 | iNaturalist |
| Golden dwarf barb Pethia gelius | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Golden dwarf cichlid Nannacara anomala | Borkowski.robert | CC BY-SA 4.0 | iNaturalist |
| Golden goby Mugilogobius rexi (museum specimen) | GBIF contributor | CC BY-SA 4.0 | GBIF |
| Golden head sleeper goby Valenciennea strigata | Donald Davesne | CC BY 4.0 | iNaturalist |
| Golden julie Julidochromis ornatus | FakirNL | CC BY-SA 4.0 | Wikimedia Commons |
| Golden pencilfish Nannostomus beckfordi (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Golden pheasant Fundulopanchax sjostedti | Andrewbogott | CC BY-SA 4.0 | iNaturalist |
| Golden skiffia Skiffia francesae | Mattia Nocciola | CC BY-SA 4.0 | Wikimedia Commons |
| Golden spot goby Stiphodon rutilaureus | Yi-Kai Tea | CC BY-SA 4.0 | iNaturalist |
| Golden tetra Hemigrammus rodwayi (museum specimen) | Hui, Tan Heok; Peng, Kelvin Lim Kok; Huan, Liew Jia; Wei, Low Bi; Hing, Rayson Lim Bock; Beng, Jeffrey Kwik Teik; Yeo, Darren C. J. | CC BY 4.0 | Wikimedia Commons |
| Golden topminnow Fundulus chrysotus | geosesarma | CC BY 4.0 | GBIF |
| Golden vampire pleco Leporacanthicus heterodon (museum specimen) | Gabriel Lelis Togni | CC BY 3.0 | Wikimedia Commons |
| Golden wonder killifish Aplocheilus lineatus | Marrabbio2 | CC BY-SA 3.0 | Wikimedia Commons |
| Golden zebra loach Botia histrionica | Lerdsuwa | CC BY-SA 4.0 | iNaturalist |
| Goldentail moray Gymnothorax miliaris | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Goniastrea coral Goniastrea sp. | Jean-Paul Boerekamps | CC0 1.0 | iNaturalist |
| Graceful rasbora Trigonopoma gracile | Justin Philbois | CC0 1.0 | GBIF |
| Grant's peacock Aulonocara stuartgranti | Photograph by Mike Peel ( www.mikepeel.net ). | CC BY-SA 4.0 | Wikimedia Commons |
| Grape coral Euphyllia cristata | Greg III Espera | CC BY 4.0 | iNaturalist |
| Grassleaf bladderwort Utricularia graminifolia | Darci | CC0 1.0 | GBIF |
| Gratiola viscidula Gratiola viscidula | Brandon Corder | CC BY 4.0 | GBIF |
| Great ramshorn snail Planorbarius corneus | Sean Hartnett | CC BY 4.0 | GBIF |
| Greater scissortail rasbora Rasbora caudimaculata | Shane Austin | CC BY 4.0 | GBIF |
| Green babaulti shrimp Caridina cf. babaulti | Viral joshi | CC BY 4.0 | GBIF |
| Green chromide Etroplus suratensis | renjus box | CC BY 4.0 | GBIF |
| Green clown goby Gobiodon histrio | Dr. Oliver Schneider | CC BY-SA 4.0 | iNaturalist |
| Green dragon betta Betta simorum | R.J. Blach | CC BY-SA 3.0 | Wikimedia Commons |
| Green fire tetra Aphyocharax rathbuni | Kullander, SO | CC BY 4.0 | GBIF |
| Green gecko loach Homalopteroides smithi | Utain Pummarin | CC BY 4.0 | GBIF |
| Green lace filter shrimp Atyoida pilipes | Gustav Paulay | CC0 1.0 | GBIF |
| Green line lizard tetra Iguanodectes spilurus (museum specimen) | Kevin Brix | CC BY-SA 4.0 | iNaturalist |
| Green mask betta Betta pugnax | Doreen | CC BY 4.0 | GBIF |
| Green milfoil Myriophyllum mattogrossense (museum specimen) | University of New Hampshire | CC0 1.0 | GBIF |
| Green neon garra Garra surendranathanii | Moncey Vincent | CC BY 3.0 | Wikimedia Commons |
| Green neon tetra Paracheirodon simulans | Sascha Biedermann | CC BY-SA 4.0 | iNaturalist |
| Green panchax Aplocheilus blockii | Afsar Nayakkan | CC BY 4.0 | GBIF |
| Green phantom pleco Baryancistrus demantoides | Anne Blindheim | CC BY-SA 3.0 | Wikimedia Commons |
| Green phantom pleco (Hemiancistrus subviridis) Hemiancistrus subviridis | 5snake5 | CC0 | Wikimedia Commons |
| Green spotted puffer Tetraodon nigroviridis | Starseed | CC BY-SA 4.0 | iNaturalist |
| Green star polyps Briareum violaceum | portioid | CC BY 4.0 | iNaturalist |
| Green terror Andinoacara rivulatus | w|User:MidgleyDJ|MidgleyDJ (Dr. David Midgley) at en.wikipedia. | CC BY 4.0 | iNaturalist |
| Green terror cichlid Andinoacara stalsbergi | Claude Kolwelter | CC BY 4.0 | GBIF |
| Green tiger loach Syncrossus hymenophysa | Julian augustine alexander | CC BY-SA 3.0 | Wikimedia Commons |
| Green-gold cory Osteogaster melanotaenia | Zakqary Roy | CC BY 4.0 | GBIF |
| Greenstripe pencilfish Nannostomus marilynae (museum specimen) | Clinton & Charles Robertson from RAF Lakenheath, UK & San Marcos, TX, USA & UK | CC BY 2.0 | Wikimedia Commons |
| Guayas cichlid Mesoheros festae | Vonedaddy | CC BY-SA 4.0 | iNaturalist |
| Guenther's mouthbrooder Chromidotilapia guntheri | Cedricguppy - Loury Cédric | CC BY-SA 4.0 | Wikimedia Commons |
| Guppy Poecilia reticulata | Franz Anthony | CC BY 4.0 | iNaturalist |
| Guppy grass Najas guadalupensis | Nathan Aaron | CC BY 4.0 | GBIF |
| Guyana acara Ivanacara bimaculata (museum specimen) | Jonathan (Jon) Armbruster | CC BY-SA 2.0 | Wikimedia Commons |
| Gymnogeophagus gymnogenys Gymnogeophagus gymnogenys | Paisaje Protegido Paso Centurión y Sierra de Ríos | CC0 1.0 | GBIF |
| Gymnogeophagus labiatus Gymnogeophagus labiatus | Paisaje Protegido Paso Centurión y Sierra de Ríos | CC0 1.0 | GBIF |
| Gymnogeophagus rhabdotus Gymnogeophagus rhabdotus | Sebastián Lovera | CC0 1.0 | GBIF |
| Haddon's carpet anemone Stichodactyla haddoni | Chaloklum Diving | CC BY 4.0 | iNaturalist |
| Hair band kuhli loach Pangio shelfordii | Cheongweei Gan | CC BY 4.0 | iNaturalist |
| Hairy mushroom Rhodactis indosinensis | Julien Lepage | CC BY 4.0 | iNaturalist |
| Hairy puffer Pao baileyi | M.S. | CC BY-SA 3.0 | Wikimedia Commons |
| Hairy tower snail Thiara cancellata (museum specimen) | Lozouet Pierre | CC BY 4.0 | iNaturalist |
| Half-banded spiny eel Macrognathus circumcinctus | Zakqary Roy | CC BY 4.0 | GBIF |
| Half-black angelfish Centropyge vrolikii | Jim Moore (Maryland) | CC BY 4.0 | iNaturalist |
| Halloween hermit crab Ciliopagurus strigatus | Jay Paroline | CC BY 4.0 | iNaturalist |
| Hammer coral Fimbriaphyllia ancora | portioid | CC BY 4.0 | iNaturalist |
| Hampala barb Hampala macrolepidota | Zac Peterson | CC BY 4.0 | GBIF |
| Hap nyererei Pundamilia nyererei | Kevin Bauman | CC BY 4.0 | iNaturalist |
| Haplochromis thereuterion Haplochromis thereuterion | User:Haplochromis | CC BY-SA 3.0 | Wikimedia Commons |
| Harlequin bass Serranus tigrinus | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Harlequin filefish Oxymonacanthus longirostris | Ian Dugdale | CC BY 4.0 | iNaturalist |
| Harlequin lancer catfish Bagroides melapterus (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Harlequin rasbora Trigonostigma heteromorpha | Dariusz | CC BY 4.0 | iNaturalist |
| Harlequin shrimp Caridina spongicola | Yixiong Cai, Kristina Zitzler | CC BY 4.0 | Wikimedia Commons |
| Harlequin shrimp (Hymenocera picta) Hymenocera picta | Christian Gloor | CC BY 4.0 | iNaturalist |
| Harlequin tuskfish Choerodon fasciatus | Leonard Low from Australia | CC BY 4.0 | iNaturalist |
| Harvey's licorice gourami Parosphromenus harveyi | Zakqary Roy | CC BY 4.0 | GBIF |
| Hawaiian whitespotted toby Canthigaster jactator | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Head-and-tail-light tetra Hemigrammus ocellifer | Deadlyballistics at English Wikipedia | Public domain | Wikimedia Commons |
| Hector's goby Koumansetta hectori | portioid | CC BY 4.0 | iNaturalist |
| Hedyotis salzmannii Hedyotis salzmannii (museum specimen) | Arizona State University Vascular Plant Herbarium | CC BY 4.0 | GBIF |
| Helfrich's firefish Nemateleotris helfrichi | NPS photo - Bryan Harry - Waikiki Aquarium | Public domain | Wikimedia Commons |
| Hendrickson's stream catfish Akysis hendricksoni | Zakqary Roy | CC BY 4.0 | GBIF |
| Herald's angelfish Centropyge heraldi | Unknown author | CC0 1.0 | iNaturalist |
| Hi-fin headstander barb Oreichthys cosuatis (museum specimen) | Rupert A. Collins | CC BY 4.0 | iNaturalist |
| Hockeystick pencilfish Nannostomus eques | Fajoe | CC BY-SA 3.0 | Wikimedia Commons |
| Hog nose cat Brochis multiradiata | Kullander, SO | CC BY 4.0 | GBIF |
| Honey blue eye rainbow Pseudomugil mellis (museum specimen) | GBIF contributor | CC BY 4.0 | GBIF |
| Honey gourami Trichogaster chuna | Made be Uploader | CC BY-SA 4.0 | iNaturalist |
| Hong Kong paradise fish Macropodus hongkongensis | Toby Y | CC BY 4.0 | GBIF |
| Hongslo's dwarf cichlid Apistogramma hongsloi | Britzke | CC BY-SA 2.0 | Wikimedia Commons |
| Horeman sword Echinodorus horemanii | Dinorath Echandía Moreira | CC BY 4.0 | iNaturalist |
| Horn coral Hydnophora rigida | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Horned bristlenose pleco Ancistrus triradiatus | Pia Helminen | CC BY 2.5 | Wikimedia Commons |
| Horned nerite snail Clithon corona (museum specimen) | Joop Trausel | Frans Slieker | CC BY 4.0 | GBIF |
| Hornwort Ceratophyllum demersum | chiuluan | CC BY 4.0 | iNaturalist |
| Horseface loach Acantopsis dialuzona | Alter welt | CC BY-SA 4.0 | Wikimedia Commons |
| Horseman's cory Osteogaster eques | Zakqary Roy | CC BY 4.0 | GBIF |
| Hovering zebra loach Micronemacheilus cruciatus | VivienneHarper | CC BY-SA 3.0 | Wikimedia Commons |
| Hump coral Porites cylindrica | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Hump-backed limia Limia nigrofasciata | Janet Cremetti | CC BY-SA 2.0 | Wikimedia Commons |
| Humpback banjo catfish Bunocephalus verrucosus | Christoph Rettberg, Germany. http://bunocephalus.de/ | CC BY-SA 3.0 | Wikimedia Commons |
| Humpback puffer Pao palembangensis (museum specimen) | Anthropophoca | CC0 | Wikimedia Commons |
| Humphead glassfish Parambassis pulcinella | Puchatech K. | CC BY-SA 3.0 | Wikimedia Commons |
| Hygrophila 'Araguaia' Hygrophila lancea 'Araguaia' (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Hygrophila costata Hygrophila costata | Andrés González | CC BY-SA 3.0 | Wikimedia Commons |
| Hygrophila odora Hygrophila odora (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Hygrophila pinnatifida Hygrophila pinnatifida (museum specimen) | S. Bramhadande|J. Dalavi | CC BY 4.0 | GBIF |
| Hygrophila polysperma Hygrophila polysperma | 曾昱承 Yu-Cheng Zeng | CC BY 4.0 | iNaturalist |
| Hygrophila salicifolia Hygrophila salicifolia (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Hygrophila serpyllum Hygrophila serpyllum | S.MORE | CC0 1.0 | iNaturalist |
| Hyptis lorentziana Hyptis lorentziana | Luis Capeletti | CC0 1.0 | GBIF |
| Imitator cory Brochis imitator | Soulkeeper | CC BY-SA 4.0 | Wikimedia Commons |
| Imperial flower loach Leptobotia elongata (museum specimen) | 黄花菜 | CC BY 3.0 | Wikimedia Commons |
| Indian butterfly catfish Erethistes hara | Rejoice Gassah | CC BY 4.0 | iNaturalist |
| Indian glassy fish Parambassis ranga (museum specimen) | University of Kansas Biodiversity Institute | CC BY 4.0 | GBIF |
| Indian ricefish Oryzias dancena | Vijay Barve | CC0 1.0 | GBIF |
| Indonesian tiger perch Datnioides microlepis | Ginkgo100 | CC BY-SA 4.0 | iNaturalist |
| Inka stone Tahuantinsuyoa macantzatza | Southamerican Cichlids | CC BY-SA 3.0 | Wikimedia Commons |
| Inle loach Petruichthys brevis (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Irianto red crayfish Cherax snowden | Christian Lukhaup, Jörn Panteleit, Anne Schrimpf | CC BY 3.0 | Wikimedia Commons |
| Iridescent shark Pangasianodon hypophthalmus | nbasargin | CC BY 4.0 | iNaturalist |
| Jack Dempsey Rocio octofasciata | User:Zhyla (?) | CC BY-SA 3.0 | Wikimedia Commons |
| Jae barb Enteromius jae (museum specimen) | Jonathan (Jon) Armbruster | CC BY-SA 2.0 | Wikimedia Commons |
| Jaguar cichlid Parachromis managuensis | Kai Murphy | CC BY 4.0 | GBIF |
| January tetra Hemigrammus hyanuary | Thomnight ( Thomnight ) | CC BY-SA 2.0 de | Wikimedia Commons |
| Japanese cress Cardamine lyrata | Wang.QG | CC BY 4.0 | GBIF |
| Japanese dwarf pennywort Hydrocotyle tripartita | 謝麗霦 | CC BY 4.0 | GBIF |
| Japanese fire belly newt Cynops pyrrhogaster | Tatsutomo Chin | CC BY 4.0 | GBIF |
| Japanese swallowtail angelfish Genicanthus semifasciatus | Izuzuki diver | CC BY-SA 4.0 | iNaturalist |
| Japanese trapdoor snail Viviparus malleatus | げっとり | CC BY 4.0 | iNaturalist |
| Java combtail Belontia hasselti | Justin Philbois | CC0 1.0 | GBIF |
| Java fern Microsorum pteropus | Jacy Chen | CC BY 4.0 | iNaturalist |
| Java moss Taxiphyllum barbieri | Xedoo | CC BY-SA 4.0 | Wikimedia Commons |
| Javanese ricefish Oryzias javanicus (museum specimen) | Ahsan A.H | CC BY-SA 4.0 | Wikimedia Commons |
| Jelly bean tetra Ladigesia roloffi | Cedricguppy - Loury Cédric | CC BY-SA 4.0 | Wikimedia Commons |
| Jewel cichlid Hemichromis bimaculatus | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| Johanni cichlid Pseudotropheus johannii | Kerry-Ann van der Walt | CC BY 4.0 | GBIF |
| Julii cory Corydoras trilineatus | Sychriscar | CC BY-SA 3.0 | Wikimedia Commons |
| Jurupari eartheater Satanoperca jurupari | Carnat Joel | CC BY 4.0 | iNaturalist |
| Kaligono Nimbochromis polystigma | bitsandbugs | CC0 1.0 | GBIF |
| Kelberi peacock bass Cichla kelberi | Renato Brito | CC BY 4.0 | GBIF |
| Kenyi cichlid Maylandia lombardoi | Vlad Butsky | CC BY 4.0 | iNaturalist |
| Kerri tetra Inpaichthys kerri | Juan R. Lascorz | CC BY-SA 4.0 | iNaturalist |
| Keyhole angelfish Centropyge tibicen | portioid | CC BY 4.0 | iNaturalist |
| Keyhole cichlid Cleithracara maronii | Doronenko | CC BY 4.0 | iNaturalist |
| Kissing gourami Helostoma temminckii | 5snake5 | CC BY-SA 4.0 | iNaturalist |
| Klein's butterflyfish Chaetodon kleinii | Unknown author | CC0 1.0 | iNaturalist |
| Knight goby Stigmatogobius sadanundio | Stella Fish | CC BY 4.0 | GBIF |
| Knob-horned coral Pocillopora verrucosa | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Knobby sea rod Eunicea spp. | Robin White | CC BY 4.0 | iNaturalist |
| Kole tang Ctenochaetus strigosus (museum specimen) | GBIF contributor | CC BY-SA 4.0 | GBIF |
| Koran angelfish Pomacanthus semicirculatus | Petr Knotek | CC BY 4.0 | iNaturalist |
| Kribensis Pelvicachromis pulcher | Allie_Caulfield | CC BY 4.0 | iNaturalist |
| Krobia xinguensis Krobia xinguensis | Channaguy | CC BY 4.0 | Wikimedia Commons |
| Kubotai rasbora Microdevario kubotai | BottomDog | CC BY-SA 3.0 | Wikimedia Commons |
| Kuhli loach Pangio semicincta | Iidkk | CC BY-SA 4.0 | iNaturalist |
| Kyathit danio Danio kyathit | Il le faut | CC BY-SA 3.0 | Wikimedia Commons |
| Lagenandra keralensis Lagenandra keralensis (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Lagenandra meeboldii Lagenandra meeboldii | S.MORE | CC0 1.0 | GBIF |
| Lagenandra ovata Lagenandra ovata | Oleg Kosterin | CC BY 4.0 | GBIF |
| Lagenandra thwaitesii Lagenandra thwaitesii (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Lake cress Rorippa aquatica | diana schwartz | CC BY 4.0 | GBIF |
| Lake Inle danio Inlecypris auropurpurea (museum specimen) | Rupert A. Collins | CC BY 3.0 | Wikimedia Commons |
| Lake kurumoi rainbowfish Melanotaenia parva | Dirk Godlinski | CC BY-SA 3.0 | Wikimedia Commons |
| Lake Malawi synodontis Synodontis njassae | Paweł Cieśla Staszek_Szybki_Jest | CC BY-SA 4.0 | Wikimedia Commons |
| Lake Tebera rainbowfish Melanotaenia herbertaxelrodi | Klaus Rudloff | CC BY-SA 4.0 | iNaturalist |
| Lake wanam rainbowfish Glossolepis wanamensis | Roan Art at English Wikipedia | CC BY 2.5 | Wikimedia Commons |
| Lamarck's angelfish Genicanthus lamarck | Bernard DUPONT | CC BY 4.0 | iNaturalist |
| Lambchop rasbora Trigonostigma espei | Atulbhats | CC BY-SA 4.0 | iNaturalist |
| Lamprologus meleagris Lamprologus meleagris | Melanochromis | Public domain | Wikimedia Commons |
| Lawn pennywort Hydrocotyle sibthorpioides | chiuluan | CC BY 4.0 | GBIF |
| Lawnmower blenny Salarias fasciatus | portioid | CC BY 4.0 | iNaturalist |
| Lda gold marble bushynose pleco Ancistrus claro | Douglas Lopes | CC BY 4.0 | GBIF |
| Leaf pavona Pavona decussata | My-Lan Le | CC BY 4.0 | iNaturalist |
| Leaf scorpionfish Taenianotus triacanthus | Unknown author | CC0 1.0 | iNaturalist |
| Least dwarf crayfish Cambarellus diminutus | Hermann Junghans | CC BY-SA 3.0 de | Wikimedia Commons |
| Least killifish Heterandria formosa | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Least pencilfish Nannostomus minimus | Graham Ramsay | CC BY-SA 3.0 | Wikimedia Commons |
| Least rasbora Boraras urophthalmoides | Zakqary Roy | CC BY 4.0 | GBIF |
| Lemon cichlid Neolamprologus leleupi | salles1 | CC BY 2.0 | Wikimedia Commons |
| Lemon damsel Pomacentrus moluccensis | Luke Lythgoe | CC BY 4.0 | iNaturalist |
| Lemon tetra Hyphessobrycon pulchripinnis | SOK | CC BY-SA 4.0 | Wikimedia Commons |
| Lemonpeel angelfish Centropyge flavissima | Mike Bowie | CC BY 4.0 | iNaturalist |
| Leonard's hillstream loach Pseudohomaloptera leonardi (museum specimen) | Sahat Ratmuangkhwang | CC BY 3.0 | Wikimedia Commons |
| Leopard bushfish Ctenopoma acutirostre | Karelj | Public domain | Wikimedia Commons |
| Leopard cactus pleco Pseudacanthicus cf. leopardus | Sesamehoneytart | CC BY-SA 3.0 | Wikimedia Commons |
| Leopard cory Brochis leopardus | Frank M. Greco | CC BY 3.0 | Wikimedia Commons |
| Leopard frog pleco Peckoltia compta | Frank M Greco | CC BY 4.0 | iNaturalist |
| Leopard wrasse Macropharyngodon meleagris | cello caruso-turiello | CC BY 4.0 | iNaturalist |
| Lepidiolamprologus kendalli Lepidiolamprologus kendalli | HblairH | CC BY-SA 4.0 | Wikimedia Commons |
| Leptastrea coral Leptastrea sp. | Julien Renoult | CC BY 4.0 | iNaturalist |
| Leptoseris Leptoseris spp. | Debra Baker | CC BY 4.0 | iNaturalist |
| Lesser bleeding heart tetra Megalamphodus socolofi | Klaus Rudloff | CC BY-SA 4.0 | Wikimedia Commons |
| Lesser creeping rush Juncus repens | Amber M. King | CC BY 4.0 | GBIF |
| Lettuce coral Pectinia lactuca | portioid | CC BY 4.0 | iNaturalist |
| Liberty molly Poecilia salvatoris | Micropteron | CC BY-SA 4.0 | Wikimedia Commons |
| Lichnochromis acuticeps Lichnochromis acuticeps | Oosh | CC BY-SA 3.0 | Wikimedia Commons |
| Lieutenant tang Acanthurus tennentii | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Limnophila heterophylla Limnophila heterophylla (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Limnophila hippuridoides Limnophila hippuridoides (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Limnophila rugosa Limnophila rugosa | 胡正恆(Jackson Hu) | CC BY 4.0 | GBIF |
| Limnophila sessiliflora Limnophila sessiliflora | chiuluan | CC BY 4.0 | iNaturalist |
| Linear blenny Ecsenius lineatus | Jean-Paul Boerekamps | CC0 1.0 | iNaturalist |
| Lined barb Striuntius lineatus | Staudacher | CC0 | Wikimedia Commons |
| Lined seahorse Hippocampus erectus | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Lipstick barb Pethia erythromycter | Greco, Frank M. | CC BY 3.0 | Wikimedia Commons |
| Little cory catfish Corydoras nanus | karsten_s | CC BY 4.0 | Wikimedia Commons |
| Liver catfish Heteropneustes fossilis (museum specimen) | Manishrajankarfeed | CC BY-SA 4.0 | Wikimedia Commons |
| Livingston's cichlid Nimbochromis livingstonii | Dr. Michael K. Oliver | CC BY-SA 3.0 | Wikimedia Commons |
| Lizard's tail Saururus cernuus | Brandon Corder | CC BY 4.0 | GBIF |
| Lobo brain coral Lobophyllia hemprichii | Malaika Mathew Chawla | CC BY 4.0 | iNaturalist |
| Lollipop prawn Macrobrachium gracilirostre | Heng Chian Li | CC BY 4.0 | GBIF |
| Long spine urchin Diadema setosum | Quartl | CC BY-SA 4.0 | iNaturalist |
| Long tentacle anemone Radianthus doreensis | Dan Schofield | CC BY 4.0 | iNaturalist |
| Long tentacle plate coral Heliofungia actiniformis | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Long-finned tetra Bryconalestes longipinnis (museum specimen) | Jonathan (Jon) Armbruster | CC BY-SA 2.0 | Wikimedia Commons |
| Long-nosed distichodus Distichodus lusosso (museum specimen) | Natural History Museum | CC BY 4.0 | Wikimedia Commons |
| Longhorn cowfish Lactoria cornuta | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Longnose butterflyfish Forcipiger flavissimus | Debra Baker | CC BY 4.0 | iNaturalist |
| Longnose hawkfish Oxycirrhites typus | Micha Baum | CC BY-SA 4.0 | iNaturalist |
| Loreto cory Hoplisoma loretoense (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Loreto tetra Hyphessobrycon loretoensis | A. Zarske, D. Bork, H.J. Franke, illust. Jurgen Scholz | CC BY 4.0 | Wikimedia Commons |
| Loxozonus cory Hoplisoma loxozonum | Soulkeeper | CC BY-SA 3.0 | Wikimedia Commons |
| Lubbock's fairy wrasse Cirrhilabrus lubbocki | portioid | CC BY 4.0 | iNaturalist |
| Lucky bamboo (false aquatic) Dracaena sanderiana | prodewald | CC0 1.0 | GBIF |
| Ludwigia brevipes Ludwigia brevipes | harrier | CC BY 4.0 | GBIF |
| Ludwigia glandulosa Ludwigia glandulosa | Amber M. King | CC BY 4.0 | GBIF |
| Ludwigia inclinata Ludwigia inclinata (museum specimen) | Andreas Huber | CC BY 4.0 | GBIF |
| Ludwigia ovalis Ludwigia ovalis | Cheng-Te Hsu | CC BY 4.0 | GBIF |
| Ludwigia repens Ludwigia repens | Thomas Mesaglio | CC BY 4.0 | iNaturalist |
| Ludwigia senegalensis Ludwigia senegalensis (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Ludwigia sphaerocarpa Ludwigia sphaerocarpa | Evan Feusi | CC0 1.0 | GBIF |
| Lujans pleco Peckoltia lujani (museum specimen) | Jonathan W. Armbruster | CC BY 4.0 | Wikimedia Commons |
| Lunare wrasse Thalassoma lunare | Susan Prior | CC BY 4.0 | iNaturalist |
| Lyretail anthias Pseudanthias squamipinnis | Storm Martin | CC BY 4.0 | iNaturalist |
| Lyretail checkerboard cichlid Dicrossus filamentosus | Eduardo A Carvalho | CC BY 3.0 | Wikimedia Commons |
| Lyretail killifish Aphyosemion australe | Violaine2, France | CC BY-SA 3.0 | Wikimedia Commons |
| Lysimachia parvifolia Lysimachia parvifolia (museum specimen) | Royal Botanic Garden Edinburgh | CC0 1.0 | GBIF |
| Macmaster's dwarf cichlid Apistogramma macmasteri | Cupr78up | CC BY-SA 4.0 | iNaturalist |
| Mad barb Leptobarbus hoevenii | Ong Jyh Seng | CC BY 4.0 | GBIF |
| Madagascar lace plant Aponogeton madagascariensis (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Madagascar panchax Pachypanchax sakaramyi | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| Madagascar rainbowfish Bedotia madagascariensis | Loiselle P. V., Rodriguez D. | CC BY 4.0 | iNaturalist |
| Magenta dottyback Pictichromis porphyrea | Debra Baker | CC BY 4.0 | iNaturalist |
| Magnificent anemone Radianthus magnifica | freefri_ | CC BY 4.0 | iNaturalist |
| Magnificent foxface Siganus magnificus | Holger Krisp | CC BY 4.0 | iNaturalist |
| Magnificent killifish Hypsolebias magnificus | Andrew Bogott | CC BY-SA 4.0 | iNaturalist |
| Maharaja barb Puntius sahyadriensis | Frank M. Greco | CC BY 3.0 | Wikimedia Commons |
| Majestic angelfish Pomacanthus navarchus | Nicola Crockford | CC BY 4.0 | iNaturalist |
| Malawi eye-biter Dimidiochromis compressiceps | Kevin Gessner | CC BY 2.0 | Wikimedia Commons |
| Malawi trout Champsochromis caeruleus | Klaus Rudloff | CC BY-SA 4.0 | iNaturalist |
| Malaysian trumpet snail Melanoides tuberculata | David Elliott | CC BY 4.0 | iNaturalist |
| Mandarin dragonet Synchiropus splendidus | Lakshmi Sawitri | CC BY 4.0 | iNaturalist |
| Mango pleco Baryancistrus chrysolomus | Whaldener Endo | CC0 1.0 | GBIF |
| Marbled bichir Polypterus palmas | John P. Friel Ph.D. | CC BY 4.0 | Wikimedia Commons |
| Marbled hatchetfish Carnegiella strigata | Wikimedia Commons contributor | CC BY-SA 3.0 | Wikimedia Commons |
| Marbled headstander Abramites hypselonotus (museum specimen) | Ramon and Suzanne Vargas | CC BY-SA 4.0 | Wikimedia Commons |
| Marbled perchlet Glossamia aprion (museum specimen) | coenobita | CC BY 4.0 | Wikimedia Commons |
| Marbled talking catfish Amblydoras nauticus | Michael Bakker Paiva | CC BY 4.0 | GBIF |
| Marbled whiptail Loricaria simillima | demianlescano | CC0 1.0 | GBIF |
| Marimo moss ball Aegagropila linnaei | David R. | CC BY 4.0 | iNaturalist |
| Marksmith's julie Julidochromis marksmithi | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Marlier's julie Julidochromis marlieri | Doronenko | CC BY 4.0 | iNaturalist |
| Maroon clownfish Amphiprion biaculeatus | Barry Peters` | CC BY 4.0 | iNaturalist |
| Marsh dewflower Murdannia keisak | Alan Weakley | CC0 1.0 | GBIF |
| Marsh seedbox Ludwigia palustris | Chris Parminter | CC BY 4.0 | GBIF |
| Marsilea hirsuta Marsilea hirsuta | Greg Tasney | CC BY-SA 4.0 | iNaturalist |
| Mascara barb Dawkinsia assimilis | Rahul Gautam | CC BY 4.0 | Wikimedia Commons |
| Masked julie Julidochromis transcriptus | MidgleyDJ at English Wikipedia | Public domain | Wikimedia Commons |
| Maxima clam Tridacna maxima | 呂一起(Lyu yi-chi) | CC BY 4.0 | iNaturalist |
| Mayaca sellowiniana Mayaca sellowiana | Edson Luis Fabro Gasperin | CC BY-SA 4.0 | iNaturalist |
| Mayan cichlid Mayaheros urophthalmus (museum specimen) | Curtis Meyers | CC BY-SA 4.0 | Wikimedia Commons |
| Maze brain coral Platygyra sp. | Philippe Bourjon | CC BY-SA 4.0 | iNaturalist |
| McCosker's flasher wrasse Paracheilinus mccoskeri | jeyre | CC BY 4.0 | iNaturalist |
| McCulloch's clownfish Amphiprion mccullochi (museum specimen) | Sally Reader | CC BY 4.0 | GBIF |
| Mdoka white lips Placidochromis phenochilus | Dick Culbert from Gibsons, B.C., Canada | CC BY 2.0 | Wikimedia Commons |
| Medaka Oryzias latipes | 根川孝太郎 | CC BY-SA 4.0 | iNaturalist |
| Mees' antenna cat Brachyrhamdia meesi (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Mekong misker cat Kryptopterus limpok (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Mekong ricefish Oryzias mekongensis | Andrewbogott | CC BY-SA 4.0 | Wikimedia Commons |
| Mekong tiger perch Datnioides undecimradiatus | luluchouette | CC BY 4.0 | GBIF |
| Melanurus wrasse Halichoeres melanurus | desertnaturalist | CC BY 4.0 | iNaturalist |
| Melon barb Haludaria fasciata (museum specimen) | Irvin calicut | CC BY-SA 4.0 | Wikimedia Commons |
| Mermaid weed Proserpinaca palustris | Zac Peterson | CC BY 4.0 | GBIF |
| Mertens' carpet anemone Stichodactyla mertensii | Bart | CC BY 4.0 | iNaturalist |
| Merulina Merulina ampliata | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Mesoheros ornatus Mesoheros ornatus (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Metallic livebearer Girardinus metallicus | Cardet co6cs | CC BY-SA 3.0 | Wikimedia Commons |
| Mexican oak leaf Shinnersia rivularis | Ricardo Jaimes-López | CC BY 4.0 | GBIF |
| Mexican turbo snail Turbo fluctuosus | Alberto Alcalá | CC BY 4.0 | iNaturalist |
| Micro sword Lilaeopsis brasiliensis | vinicius_s_domingues | CC BY 4.0 | iNaturalist |
| Microcarpaea minima Microcarpaea minima (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Midas blenny Ecsenius midas | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Midas cichlid Amphilophus citrinellus | Marco Verch | CC BY 4.0 | iNaturalist |
| Midnight catfish Auchenipterichthys coracoideus (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Miguelito cory Brochis virginiae | Arczi325 | CC BY-SA 4.0 | Wikimedia Commons |
| Mikolji's oscar Astronotus mikoljii | Mikolji | CC BY-SA 4.0 | Wikimedia Commons |
| Millepora acropora Acropora millepora | Nicola Crockford | CC BY 4.0 | iNaturalist |
| Mimic tang Acanthurus pyroferus | portioid | CC BY 4.0 | iNaturalist |
| Mini carpet anemone Stichodactyla tapetum | Susan Prior | CC BY 4.0 | iNaturalist |
| Moa island rainbow Melanotaenia sahulensis | Doug Hoese | CC BY 4.0 | GBIF |
| Molly Poecilia sphenops | Carlos Domínguez-Rodríguez | CC BY 4.0 | iNaturalist |
| Molly Miller blenny Scartella cristata | Eridan Xharahi | CC BY 4.0 | iNaturalist |
| Mono argentus Monodactylus argenteus | Jan Ebr & Ivana Ebrová | CC BY 4.0 | GBIF |
| Monte Carlo Micranthemum tweediei 'Monte Carlo' (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Montezuma swordtail Xiphophorus montezumae | Cedricguppy - Loury Cédric | CC BY-SA 4.0 | Wikimedia Commons |
| Moonlight gourami Trichopodus microlepis | Greg Hume (Greg5030) | CC BY-SA 4.0 | iNaturalist |
| Moonspot licorice gourami Parosphromenus linkei (museum specimen) | GBIF contributor | CC BY-SA 3.0 | GBIF |
| Moose-faced loach Canthophrys gongota (museum specimen) | Francis Day | Public domain | Wikimedia Commons |
| Mosaic cory Brochis haraldschultzi | Mummymonkey | CC BY-SA 4.0 | iNaturalist |
| Mosaic plant Ludwigia sedioides | KATHERINE WAGNER-REISS | CC BY-SA 4.0 | Wikimedia Commons |
| Mosquito fern Azolla caroliniana | Melissa Meadows | CC BY 4.0 | GBIF |
| Mosquitofish Gambusia affinis | Zakqary Roy | CC BY 4.0 | iNaturalist |
| Motoro stingray Potamotrygon motoro | Guérin Nicolas ( messages ) | CC BY-SA 3.0 | Wikimedia Commons |
| Mottled bichir Polypterus weeksii | RoyalAce | CC BY-SA 4.0 | Wikimedia Commons |
| Moustached danio Danio dangila | Ankur Nandi | CC BY 4.0 | GBIF |
| Multicolor angelfish Centropyge multicolor | Roger Rittmaster | CC BY 4.0 | iNaturalist |
| Multies Neolamprologus multifasciatus | NasserHalaweh | CC BY-SA 4.0 | iNaturalist |
| Myriophyllum elatinoides Myriophyllum elatinoides (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Myriophyllum tetrandrum Myriophyllum tetrandrum (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Myriophyllum ussuriense Myriophyllum ussuriense (museum specimen) | Institute of the biological problems of the North FEB RAS (copyright is managed by Dr. Maria G. Khoreva) | CC BY 4.0 | GBIF |
| Mystery snail Pomacea diffusa | Dilrukshan Priyantha Wijesinghe | CC BY 4.0 | iNaturalist |
| Mystery wrasse Pseudocheilinus ocellatus | Roger Rittmaster | CC BY 4.0 | iNaturalist |
| Najas indica Najas indica | Ruppia2000 | CC BY-SA 3.0 | Wikimedia Commons |
| Nanochromis splendens Nanochromis splendens | Udo12345 | CC BY 4.0 | Wikimedia Commons |
| Napo cory Gastrodermus napoensis | BRKOSLAV SEVERNÍ | CC0 | Wikimedia Commons |
| Narrow-leaf Amazon sword Echinodorus angustifolius (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Narrow-leaf micro sword Lilaeopsis mauritiana | Peter de Lange | CC0 1.0 | GBIF |
| Narrow-leaf water clover Marsilea angustifolia (museum specimen) | Jobson, R.W.|Dunning, L.T. | CC BY 4.0 | GBIF |
| Naso tang Naso lituratus | Jason Grant | CC BY 4.0 | iNaturalist |
| Nassarius snail Phrontis vibex (museum specimen) | Ryan Watson | CC BY 4.0 | iNaturalist |
| Natterer's cory Hoplisoma nattereri (museum specimen) | Diogo Luiz | CC BY-SA 4.0 | Wikimedia Commons |
| Needle-leaf ludwigia Ludwigia arcuata | Athena Philips | CC BY 4.0 | GBIF |
| Neolamprologus callipterus Neolamprologus callipterus | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Neolamprologus cylindricus Neolamprologus cylindricus | Guérin Nicolas ( messages ) | CC BY-SA 3.0 | Wikimedia Commons |
| Neolamprologus mustax Neolamprologus mustax | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Neolamprologus similis Neolamprologus similis | Melanochromis | Public domain | Wikimedia Commons |
| Neolebias ansorgii Neolebias ansorgii (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Neon blue eye rainbow Pseudomugil cyanodorsalis | Tom Ferguson | CC BY 4.0 | GBIF |
| Neon damsel Pomacentrus coelestis | portioid | CC BY 4.0 | iNaturalist |
| Neon dottyback Pseudochromis aldabraensis | Haplochromis | CC BY-SA 4.0 | iNaturalist |
| Neon goby Elacatinus oceanops | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Neon tetra Paracheirodon innesi | Brandy Dopkins | CC BY-SA 4.0 | iNaturalist |
| Nerite snail Neritina natalensis | Rosemary Harrison | CC BY-SA 4.0 | iNaturalist |
| New guinea rainbowfish Melanotaenia affinis (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| New Guinea tiger perch Datnioides campbelli (museum specimen) | Torpido | CC BY-SA 3.0 | Wikimedia Commons |
| Nicaragua cichlid Hypsophrys nicaraguensis (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Niger triggerfish Odonus niger (museum specimen) | Ahirbudhnyan M | CC BY 4.0 | iNaturalist |
| Nile bichir Polypterus bichir (museum specimen) | Rüppell, E | CC BY 4.0 | GBIF |
| Nimbochromis linni Nimbochromis linni | SarahDepper | CC BY 2.0 | Wikimedia Commons |
| Ninja shrimp Caridina serratirostris | Biocode MINV Team | CC0 1.0 | GBIF |
| Norman's lampeye Poropanchax normani | Ursus sapien | CC BY-SA 3.0 | Wikimedia Commons |
| Northern longnose cory Corydoras septentrionalis | J-iSkELo | CC BY-SA 4.0 | Wikimedia Commons |
| Northern mountain swordtail Xiphophorus nezahualcoyotl | Livebearerguy | CC BY-SA 4.0 | Wikimedia Commons |
| Northern purple spotted gudgeon Mogurnda mogurnda | Frank M. Greco | CC BY 3.0 | Wikimedia Commons |
| Nymphaea micrantha Nymphaea micrantha | Lucy Keith-Diagne | CC BY 4.0 | iNaturalist |
| Oaxaca cichlid Vieja zonata | Klaus Rudloff | CC BY-SA 4.0 | Wikimedia Commons |
| Ocellaris clownfish Amphiprion ocellaris | Chris Spain | CC0 1.0 | iNaturalist |
| Ocellated kribensis Pelvicachromis subocellatus | Udo12345 | CC BY 4.0 | Wikimedia Commons |
| Ocellatus shell dweller Lamprologus ocellatus | AJC1 | CC BY-SA 4.0 | iNaturalist |
| Odessa barb Pethia padamya | Anandarajkumar | CC BY-SA 4.0 | iNaturalist |
| Ogilby rainbow Melanotaenia ogilbyi (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Olga cory Corydoras simulatus | Frank M. Greco | CC BY 3.0 | Wikimedia Commons |
| Olive nerite snail Vitta usnea | ictheostega | CC BY 4.0 | iNaturalist |
| One-lined African characin Nannaethiops unitaeniatus | François Libert | CC BY-SA 4.0 | iNaturalist |
| One-lined pencilfish Nannostomus unifasciatus | Lochrian | CC BY-SA 3.0 | Wikimedia Commons |
| One-spot foxface Siganus unimaculatus | Ditch Townsend | CC BY-SA 4.0 | iNaturalist |
| One-spot synodontis Synodontis notatus | R. Bills; John Friel; Duncan Reid | CC BY 4.0 | GBIF |
| Onespot barb Puntius terio | Sandipan Das | CC BY 4.0 | GBIF |
| Open brain coral Trachyphyllia geoffroyi | bondolo | CC BY 4.0 | iNaturalist |
| Ophthalmotilapia nasuta Ophthalmotilapia nasuta | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Oranda goldfish Carassius auratus | Adityamadhav83 | CC BY-SA 3.0 | Wikimedia Commons |
| Orange back cobue Cynotilapia zebroides | Cichlids Scape | CC BY-SA 4.0 | Wikimedia Commons |
| Orange chromide Pseudetroplus maculatus | Hopeland | CC BY 4.0 | GBIF |
| Orange skunk clownfish Amphiprion sandaracinos | Chris Spain | CC0 1.0 | iNaturalist |
| Orange spadetail killifish Laimosemion rectocaudatus | Kullander, SO | CC BY 4.0 | GBIF |
| Orange striped squeaker cat Synodontis flavitaeniatus | John P Friel | CC BY 4.0 | GBIF |
| Orange-shoulder tang Acanthurus olivaceus | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Orbiculate cardinalfish Sphaeramia orbicularis | portioid | CC BY 4.0 | iNaturalist |
| Orchid dottyback Pseudochromis fridmani | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Orchid lily Barclaya longifolia | Ito Y, Barfod A | CC BY 4.0 | Wikimedia Commons |
| Orinoco peacock bass Cichla orinocensis | Whaldener Endo | CC0 1.0 | GBIF |
| Ornate bichir Polypterus ornatipinnis | Ian Roderick | CC BY 4.0 | GBIF |
| Ornate ctenopoma Microctenopoma ansorgii | Juan Carlos Palau Díaz | CC BY 3.0 | Wikimedia Commons |
| Ornate licorice gourami Parosphromenus ornaticauda (museum specimen) | GBIF contributor | CC BY-SA 3.0 | GBIF |
| Ornate pim Pimelodus ornatus | Petruss | CC BY-SA 4.0 | Wikimedia Commons |
| Ornate tetra Megalamphodus bentosi | Mattia Nocciola | CC BY-SA 4.0 | Wikimedia Commons |
| Oscar Astronotus ocellatus | Daniella Vereeken | CC BY 4.0 | iNaturalist |
| Otocinclus Otocinclus vittatus | Chle | CC BY-SA 4.0 | iNaturalist |
| Otocinclus macrospilus Otocinclus macrospilus | Rainer Schmitt, 2004 | CC BY-SA 3.0 | Wikimedia Commons |
| Oxypora chalice coral Oxypora lacera | Debra Baker | CC BY 4.0 | iNaturalist |
| Pacific molly Poecilia butleri | Sinaloa Silvestre | CC0 1.0 | GBIF |
| Pacific signifier blue eye rainbowfish Pseudomugil signifer | Bruce Cathie | CC BY 4.0 | GBIF |
| Pajama cardinalfish Sphaeramia nematoptera | Unknown author | CC0 1.0 | iNaturalist |
| Pakistani butterflyfish Chaetodon collare | Jean | CC BY 4.0 | iNaturalist |
| Palauan riffle dwarf goby Stiphodon pelewensis | PampaSorro | CC BY 4.0 | GBIF |
| Pale usisya aulonocara Aulonocara steveni | Lerdsuwa | CC BY-SA 3.0 | Wikimedia Commons |
| Palythoa Palythoa tuberculosa | portioid | CC BY 4.0 | iNaturalist |
| Panda corydoras Corydoras panda | Dornenwolf | CC BY 4.0 | iNaturalist |
| Panda dwarf cichlid Apistogramma nijsseni | Kullander, SO | CC BY 4.0 | GBIF |
| Panda garra Garra flavatra | Morgan Hay | CC BY 4.0 | iNaturalist |
| Panda uaru Uaru fernandezyepezi | Ivan Mikolji / www.fishfromvenezuela.com | CC BY 1.0 | Wikimedia Commons |
| Pantano cichlid Cincelichthys pearsei | -serwacy01- | CC BY-SA 4.0 | Wikimedia Commons |
| Panther crab Parathelphusa pantherina | LaesaMajestas | CC BY-SA 4.0 | iNaturalist |
| Panther danio Danio aesculapii | Andrewbogott | CC BY-SA 4.0 | iNaturalist |
| Panther grouper Cromileptes altivelis | PampaSorro | CC BY 4.0 | iNaturalist |
| Panther loach Lepidocephalichthys guntea | Sabarni Sarker | CC BY 4.0 | GBIF |
| Para pleco Peckoltia sabaji | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| Paradise fish Macropodus opercularis | Wikimedia Commons contributor | CC BY-SA 3.0 | Wikimedia Commons |
| Paraguay eartheater Gymnogeophagus balzanii (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Parkinson's rainbowfish Melanotaenia parkinsoni | Klaus Rudloff | CC BY-SA 4.0 | Wikimedia Commons |
| Parrot's feather Myriophyllum aquaticum | Duarte Frade | CC BY 4.0 | GBIF |
| Pastaza cory Corydoras pastazensis (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Pea puffer Carinotetraodon travancoricus | Christopher | CC BY 4.0 | iNaturalist |
| Peaceful betta Betta imbellis | Zakqary Roy | CC BY 4.0 | iNaturalist |
| Peacock bass Cichla ocellaris (museum specimen) | Ong Jyh Seng | CC BY-SA 4.0 | Wikimedia Commons |
| Peacock cichlid orange blotched Aulonocara nyassae | Klaus Rudloff | CC BY-SA 4.0 | Wikimedia Commons |
| Peacock eel Macrognathus siamensis | James-LaFontaine | CC BY 4.0 | iNaturalist |
| Peacock gudgeon Tateurndina ocellicauda | elcynico | CC BY-SA 4.0 | iNaturalist |
| Peacock loach Lepidocephalichthys annandalei (museum specimen) | University of Kansas Biodiversity Institute | CC BY 4.0 | GBIF |
| Pearl bubble coral Physogyra lichtensteini | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Pearl cichlid Geophagus brasiliensis | Secretaria de Agricultura e Abastecimento | CC BY 2.0 | Wikimedia Commons |
| Pearl danio Danio albolineatus | Cheryl Stinchcomb | CC BY 4.0 | iNaturalist |
| Pearl gourami Trichopodus leerii | BEDO (Thailand) | CC BY-SA 4.0 | iNaturalist |
| Pearl killi Austrolebias nigripinnis | Catxx | CC BY 3.0 | Wikimedia Commons |
| Pearl of Likoma Labidochromis joanjohnsonae | Riftreef at English Wikipedia | CC BY 2.5 | Wikimedia Commons |
| Pearl spot betta Betta edithae | Justin Philbois | CC0 1.0 | GBIF |
| Pearlscale butterflyfish Chaetodon xanthurus | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Pearlscale cichlid Herichthys carpintis | Iván Cumpián | CC BY 4.0 | GBIF |
| Pearlscale goldfish Carassius auratus | Lawrencekhoo | CC BY-SA 4.0 | Wikimedia Commons |
| Pearlweed Micranthemum glomeratum | Kevin Faccenda | CC BY 4.0 | iNaturalist |
| Pearly ocellatus Neolamprologus stappersi | Wikimedia Commons contributor | Public domain | Wikimedia Commons |
| Pederson's cleaner shrimp Ancylomenes pedersoni | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Pellia Monosolenium tenerum | Krzysztof Ziarnek, Kenraiz | CC BY-SA 4.0 | Wikimedia Commons |
| Pellia endiviifolia Pellia endiviifolia | Lars Emil S. Feldager Hansen | CC BY 4.0 | GBIF |
| Pencil urchin Eucidaris tribuloides | Bret van Putten | CC BY-SA 4.0 | iNaturalist |
| Pencil wrasse Pseudojuloides cerasinus | P.C. Heemstra | CC BY 4.0 | GBIF |
| Penguin flying fox Crossocheilus nigriloba (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Penguin tetra Thayeria boehlkei | Kkonstan | CC BY 4.0 | iNaturalist |
| Penguin tetra (Thayeria obliqua) Thayeria obliqua | Klaus Rudloff | CC BY-SA 4.0 | Wikimedia Commons |
| Pennant butterflyfish Heniochus diphreutes | Robin White | CC BY 4.0 | iNaturalist |
| Pentazona barb Desmopuntius hexazona | Zakqary Roy | CC BY 4.0 | GBIF |
| Peppered corydoras Corydoras paleatus | Nicolas Olejnik | CC BY 4.0 | iNaturalist |
| Peppered kuhli loach Pangio piperata | Zakqary Roy | CC BY 4.0 | GBIF |
| Peppermint pleco Parancistrus nudiventris (museum specimen) | Gabriel Lelis Togni | CC BY 3.0 | Wikimedia Commons |
| Peppermint shrimp Lysmata wurdemanni | Smithsonian Environmental Research Center | CC BY 4.0 | iNaturalist |
| Percula clownfish Amphiprion percula | Micha Baum | CC BY-SA 4.0 | iNaturalist |
| Persicaria kawagoeana Persicaria kawagoeana | chiuluan | CC BY 4.0 | GBIF |
| Persicaria praetermissa Persicaria praetermissa | Mason Brock | CC0 1.0 | GBIF |
| Peru black cory Corydoras semiaquilus (museum specimen) | Stan Shebs | CC BY-SA 3.0 | Wikimedia Commons |
| Peruvian tetra Hyphessobrycon peruvianus | A. Zarske, D. Bork, H.-J. Richter, illus. Jürgen Scholz | CC BY 4.0 | Wikimedia Commons |
| Petricola catfish Synodontis petricola | BillA | CC BY 4.0 | iNaturalist |
| Phoenix licorice gourami Parosphromenus phoenicurus | Parostoteles | CC BY-SA 4.0 | iNaturalist |
| Phoenix moss Fissidens fontanus | ashleyrsteel | CC BY 4.0 | GBIF |
| Phoenix rasbora Boraras merah (museum specimen) | Andrewbogott | CC BY-SA 4.0 | Wikimedia Commons |
| Phoenix tetra Hemigrammus filamentosus (museum specimen) | D. Bork and A. Zarske | CC BY 4.0 | Wikimedia Commons |
| Piano snail Taia naticoides (museum specimen) | H. Zell | CC BY-SA 3.0 | Wikimedia Commons |
| Picasso triggerfish Rhinecanthus aculeatus | Scott Loarie | CC0 1.0 | iNaturalist |
| Pictus catfish Pimelodus pictus | Claire H. | CC BY-SA 4.0 | iNaturalist |
| Pike topminnow Belonesox belizanus | mike_cove | CC0 1.0 | GBIF |
| Pincushion urchin Lytechinus variegatus | Donald Davesne | CC BY 4.0 | iNaturalist |
| Pineapple pleco Pseudorinelepis genibarbis | Unknown author | CC0 1.0 | iNaturalist |
| Pink lady nerite snail Clithon sowerianum (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Pink skunk clownfish Amphiprion perideraion | Donald Davesne | CC BY 4.0 | iNaturalist |
| Pink-spotted watchman goby Cryptocentrus leptocephalus | jeyre | CC BY 4.0 | iNaturalist |
| Pink-tail triggerfish Melichthys vidua | Tom Heijnen | CC BY 4.0 | iNaturalist |
| Pink-tailed chalceus Chalceus macrolepidotus (museum specimen) | Zanata, Angela M.; Toledo-Piza, Mônica | CC BY 4.0 | Wikimedia Commons |
| Pinocchio whiptail catfish Hemiodontichthys acipenserinus (museum specimen) | Internet Archive Book Images | No restrictions | Wikimedia Commons |
| Pinstripe damba Paretroplus menarambo | Chabe01 | CC BY-SA 4.0 | Wikimedia Commons |
| Pipe organ coral Tubipora musica | M Ekins|S Borghi | CC BY 4.0 | GBIF |
| Pitbull pleco Parotocinclus jumbo | Haplochromis | CC BY-SA 3.0 | Wikimedia Commons |
| Pixy hawkfish Cirrhitichthys oxycephalus | Unknown author | CC0 1.0 | iNaturalist |
| Plate coral Fungia fungites | Attila Oláh | CC BY 4.0 | iNaturalist |
| Platinum royal pleco Panaque armbrusteri (museum specimen) | Gabriel Lelis Togni | CC BY 3.0 | Wikimedia Commons |
| Platy Xiphophorus maculatus | Allie_Caulfield | CC BY 4.0 | iNaturalist |
| Playfair's panchax Pachypanchax playfairii | KillisBS | CC BY-SA 4.0 | Wikimedia Commons |
| Pogostemon deccanensis Pogostemon deccanensis | Pranav Chandra Bose | CC BY 4.0 | GBIF |
| Pogostemon helferi Pogostemon helferi | Apichart Songsangchun | CC BY 4.0 | iNaturalist |
| Pogostemon quadrifolius Pogostemon quadrifolius | Afsar Nayakkan | CC BY 4.0 | GBIF |
| Pogostemon sampsonii Pogostemon sampsonii (museum specimen) | Royal Botanic Garden Edinburgh | CC0 1.0 | GBIF |
| Pogostemon stellatus Pogostemon stellatus | No machine-readable author provided. S.Tanaka~commonswiki assumed (based on copyright claims). | Public domain | Wikimedia Commons |
| Polka dot cactus pleco (L097) Pseudacanthicus sp. L097 (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Polka-dot loach Botia kubotai | Fosset, Arnaud | CC BY 3.0 | Wikimedia Commons |
| Poll's synodontis Synodontis polli (museum specimen) | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Polystictus cory Hoplisoma polystictum (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Pom pom crab Ptychognathus barbatus (museum specimen) | Noémy MOLLARET | CC BY 4.0 | Wikimedia Commons |
| Pom-pom xenia Heteroxenia fuscescens | Derek Keats | CC BY 4.0 | iNaturalist |
| Poor man's tropheus Neetroplus nematopus | Cricket Raspet | CC BY 4.0 | GBIF |
| Porcelain anemone crab Neopetrolisthes maculatus | Jean-Paul Boerekamps | CC0 1.0 | iNaturalist |
| Porcupine puffer Diodon holocanthus | Dan Schofield | CC BY 4.0 | iNaturalist |
| Porthole catfish Dianema longibarbis (museum specimen) | Ckf6412 | CC BY-SA 4.0 | Wikimedia Commons |
| Porthole rasbora Rasbora cephalotaenia | Justin Philbois | CC0 1.0 | GBIF |
| Possum wrasse Wetmorella nigropinnata | Debra Baker | CC BY 4.0 | iNaturalist |
| Potter's angelfish Centropyge potteri | cello caruso-turiello | CC BY 4.0 | iNaturalist |
| Powder blue cichlid Chindongo socolofi | JanRehschuh | CC BY-SA 4.0 | iNaturalist |
| Powder blue tang Acanthurus leucosternon | Juergen goevert | CC BY-SA 4.0 | iNaturalist |
| Powder brown tang Acanthurus japonicus | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Powder-blue panchax Pachypanchax omalonotus | Tino Strauss | CC BY-SA 3.0 | Wikimedia Commons |
| Prambanan snail Thiara winteri (museum specimen) | Lozouet Pierre | CC BY 4.0 | iNaturalist |
| Princess of Burundi Neolamprologus brichardi | Photo by David J. Stang | CC BY-SA 4.0 | Wikimedia Commons |
| Prionobrama paraguayensis Prionobrama paraguayensis | demianlescano | CC0 1.0 | GBIF |
| Psammocora Psammocora contigua | Robin White | CC BY 4.0 | iNaturalist |
| Pseudotropheus hajomaylandi Pseudotropheus hajomaylandi (museum specimen) | No machine-readable author provided. Ged~commonswiki assumed (based on copyright claims). | Public domain | Wikimedia Commons |
| Pseudotropheus polit Pseudotropheus sp. 'Polit' | No machine-readable author provided. Trigger assumed (based on copyright claims). | CC BY 2.5 | Wikimedia Commons |
| Ptychochromis grandidieri cichlid Ptychochromis grandidieri | Mattia Nocciola | CC BY-SA 4.0 | Wikimedia Commons |
| Pulsing xenia Xenia elongata | portioid | CC BY 4.0 | iNaturalist |
| Pumpkin betta Betta simplex | Andrewbogott | CC BY-SA 3.0 | Wikimedia Commons |
| Pungu maclareni Pungu maclareni (museum specimen) | joe_cutler | CC0 | Wikimedia Commons |
| Purple bacopa Bacopa salzmannii | Nicolas Olejnik | CC BY 4.0 | GBIF |
| Purple firefish Nemateleotris decora | Borja Fierro-Leva | CC BY 4.0 | iNaturalist |
| Purple frilly gorgonian Antillogorgia bipinnata | Thibaud Aronson | CC BY-SA 4.0 | iNaturalist |
| Purple queen anthias Mirolabrichthys tuka | Donald Davesne | CC BY 4.0 | iNaturalist |
| Purple sea fan Gorgonia ventalina | James St. John | CC BY 4.0 | iNaturalist |
| Purple tang Zebrasoma xanthurum | François Libert | CC BY-SA 4.0 | iNaturalist |
| Purple tetra Hyphessobrycon metae (museum specimen) | Manuel Gonzales | CC0 | Wikimedia Commons |
| Purple waffle Strobilanthes alternata | Henry Hart | CC0 1.0 | GBIF |
| Purple-fringed riccia Ricciocarpos natans | Alan Weakley | CC0 1.0 | GBIF |
| Pygmy chain sword Helanthium tenellum | umehlig | CC BY-SA 4.0 | iNaturalist |
| Pygmy cory Corydoras pygmaeus | Carnat Joel | CC BY 4.0 | iNaturalist |
| Pygmy hatchetfish Carnegiella myersi (museum specimen) | opencage | CC BY-SA 2.5 | Wikimedia Commons |
| Pygmy rainbowfish Melanotaenia pygmaea | Andrewbogott | CC BY-SA 4.0 | Wikimedia Commons |
| Pygmy synodontis Microsynodontis polli (museum specimen) | User:Haps | CC BY-SA 3.0 | Wikimedia Commons |
| Python eel Macrognathus tapirus | Zakqary Roy | CC BY 4.0 | GBIF |
| Queen angelfish Holacanthus ciliaris | desertnaturalist | CC BY 4.0 | iNaturalist |
| Queen conch Aliger gigas (museum specimen) | H. Zell | CC BY-SA 4.0 | iNaturalist |
| Queen danio Devario regina | Shane Austin | CC BY 4.0 | GBIF |
| Queen licorice gourami Parosphromenus quindecim (museum specimen) | Royal Ontario Museum | CC BY 4.0 | Wikimedia Commons |
| Quilted melania Tarebia granifera (museum specimen) | Ng TH, Dulipat J, Foon JK, Lopes-Lima M, Zieritz A, Liew T-S (2017) A preliminary checklist of the freshwater snails of Sabah (Malaysian Borneo) deposited in the BORNEENSIS collection, Universiti Malaysia Sabah. ZooKeys 673: 105-123. https://doi.org/10.3897/zookeys.673.12544 | CC BY 4.0 | Wikimedia Commons |
| Raccoon butterflyfish Chaetodon lunula | Ken-ichi Ueda | CC BY 4.0 | iNaturalist |
| Radiant wrasse Halichoeres iridis | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Radiata lionfish Pteropterus radiatus | Ewout Knoester | CC BY-SA 4.0 | iNaturalist |
| Radican sword Echinodorus cordifolius | Karina M. Torres | CC BY 4.0 | GBIF |
| Rainbow bitterling Acheilognathus macropterus | Σ64 | CC BY 4.0 | iNaturalist |
| Rainbow cichlid Herotilapia multispinosa | Klaus Rudloff | CC BY-SA 4.0 | Wikimedia Commons |
| Rainbow shark Epalzeorhynchos frenatum | Drachenschwertträger36 | CC BY-SA 4.0 | iNaturalist |
| Rainbow shiner Notropis chrosomus | Przemek Pietrak | CC BY-SA 3.0 | Wikimedia Commons |
| Rainbow stiphodon Stiphodon ornatus | Laurent Pasteur | CC BY 3.0 | Wikimedia Commons |
| Rainbow tetra Nematobrycon lacortei (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Ramshorn snail Planorbella duryi | Slimguy04 | CC BY-SA 4.0 | Wikimedia Commons |
| Ranalisma rostrata Ranalisma rostrata (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Randall's pistol shrimp Alpheus randalli | Dan Schofield | CC BY 4.0 | iNaturalist |
| Randall's shrimp goby Amblyeleotris randalli | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Red cabomba Cabomba furcata | Whaldener Endo | CC0 1.0 | GBIF |
| Red claw crab Perisesarma bidens | Marrabbio2 | CC BY-SA 3.0 | Wikimedia Commons |
| Red claw shrimp Macrobrachium assamense | Tolderi | CC BY-SA 3.0 | Wikimedia Commons |
| Red crimson betta Betta livida | Zakqary Roy | CC BY 4.0 | GBIF |
| Red devil cichlid Amphilophus labiatus | Abu Hamas | CC BY-SA 4.0 | iNaturalist |
| Red dorsal zebra mphanga Metriaclima emmiltos | Alexandra Tyers | CC BY-SA 2.0 | Wikimedia Commons |
| Red edge apisto Apistogramma viejita | lienyuan lee | CC BY 3.0 | Wikimedia Commons |
| Red empress cichlid Protomelas taeniolatus | Cedricguppy - Loury cédric | CC BY-SA 4.0 | Wikimedia Commons |
| Red eye tetra Moenkhausia sanctaefilomenae | Zakqary Roy | CC BY 4.0 | iNaturalist |
| Red fin borleyi Copadichromis borleyi | Dick Culbert | CC BY 4.0 | iNaturalist |
| Red fin cactus pleco Pseudacanthicus pitanga (museum specimen) | B. Phalan | CC BY 4.0 | Wikimedia Commons |
| Red fin sucker loach Pseudogastromyzon myersi | portioid | CC BY 4.0 | iNaturalist |
| Red fin thresher pleco Squaliforma emarginata (museum specimen) | Gabriel Lelis Togni | CC BY 3.0 | Wikimedia Commons |
| Red fromia star Fromia milleporella | Debra Baker | CC BY 4.0 | iNaturalist |
| Red head Tapajos Geophagus pyrocephalus | Mattia Nocciola | CC BY-SA 4.0 | Wikimedia Commons |
| Red hook silver dollar Myloplus rubripinnis | Whaldener Endo | CC0 1.0 | GBIF |
| Red jasper barb Pethia manipurensis | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Red jewel cichlid Rubricatochromis paynei | geosesarma | CC BY 4.0 | GBIF |
| Red Kong zebra crayfish Cherax mosessalossa | https://doi.org/10.3897/zookeys.769.26095 | CC BY 4.0 | iNaturalist |
| Red lip nerite snail Neritina violacea (museum specimen) | H. Zell | CC BY-SA 4.0 | iNaturalist |
| Red lizard hillstream loach Homaloptera ogilviei | Zakqary Roy | CC BY 4.0 | GBIF |
| Red lizard hillstream loach (Homaloptera parclitella) Homaloptera parclitella | Cheongweei Gan | CC BY 4.0 | GBIF |
| Red milfoil Myriophyllum tuberculatum (museum specimen) | Naturalis Biodiversity Center | CC0 1.0 | GBIF |
| Red mini marble loach Neohomaloptera johorensis | Zakqary Roy | CC BY 4.0 | GBIF |
| Red onion nerite snail Neritina semiconica (museum specimen) | H. Zell | CC BY-SA 4.0 | iNaturalist |
| Red phantom tetra Hyphessobrycon sweglesi | harum.koh | CC BY-SA 4.0 | iNaturalist |
| Red racer nerite snail Vittina waigiensis (museum specimen) | H. Zell | CC BY-SA 4.0 | iNaturalist |
| Red rainbowfish Glossolepis incisus | Sarah McRae | CC BY 4.0 | iNaturalist |
| Red root floater Phyllanthus fluitans | Lucas Kaminski | CC BY 4.0 | iNaturalist |
| Red scooter dragonet Synchiropus stellatus | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Red Sea clownfish Amphiprion bicinctus | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Red Sea sailfin tang Zebrasoma desjardinii | Ewout Knoester | CC BY-SA 4.0 | iNaturalist |
| Red shiner Cyprinella lutrensis | Sam Kieschnick | CC BY 4.0 | GBIF |
| Red shoulder peacock Aulonocara hansbaenschi | Radomil | CC BY-SA 3.0 | Wikimedia Commons |
| Red side cichlid Amphilophus istlanus | Luis F. Ramírez | CC BY 4.0 | GBIF |
| Red skirt betta Betta falx (museum specimen) | Ahsan_al_hidayat | CC BY-SA 3.0 | Wikimedia Commons |
| Red spark betta Betta tussyae | Zakqary Roy | CC BY 4.0 | GBIF |
| Red stripe tetra Hemigrammus rubrostriatus (museum specimen) | Axel Zarske | CC BY 4.0 | Wikimedia Commons |
| Red swamp crayfish Procambarus clarkii | Sam Turner | CC BY 4.0 | iNaturalist |
| Red swamp guppy Micropoecilia picta | Livebearerguy | CC BY-SA 4.0 | Wikimedia Commons |
| Red tail hemiodus Hemiodus gracilis (museum specimen) | Clinton & Charles Robertson | CC BY 2.0 | Wikimedia Commons |
| Red tail pike characin Boulengerella cuvieri | Benjamin ZELVELDER | CC BY 4.0 | GBIF |
| Red tail turquoise killi Nothobranchius patrizii | Jokuyken15 | CC BY 4.0 | Wikimedia Commons |
| Red top ice blue zebra Maylandia greshakei | Klaus Rudloff | CC BY-SA 4.0 | Wikimedia Commons |
| Red wolf fish Erythrinus erythrinus (museum specimen) | michaelbakkerpaiva | CC BY 4.0 | Wikimedia Commons |
| Red zebra cichlid Maylandia estherae | Maha Dinesh | CC BY-SA 4.0 | iNaturalist |
| Red-base tetra Hemigrammus stictus (museum specimen) | Renildo Ribeiro de Oliveira, Marcelo Salles Rocha, Maeda Batista dos Anjos, Jansen Zuanon, and Lúcia H. Rapp Py-Daniel | CC BY 4.0 | Wikimedia Commons |
| Red-bellied piranha Pygocentrus nattereri | Lucas Illanes | CC BY 4.0 | GBIF |
| Red-chinned panchax Epiplatys dageti | Thulemanden at Danish Wikipedia | Public domain | Wikimedia Commons |
| Red-line lizard tetra Iguanodectes geisleri | Cedricguppy - Loury Cédric | CC BY-SA 4.0 | Wikimedia Commons |
| Red-margin fairy wrasse Cirrhilabrus rubrimarginatus | Debra Baker | CC BY 4.0 | iNaturalist |
| Red-nose shrimp Caridina gracilirostris (museum specimen) | Laura FLAMME | CC BY 4.0 | Wikimedia Commons |
| Red-spotted cichlid Vieja bifasciata | Unknown author | CC0 1.0 | iNaturalist |
| Red-spotted goby Rhinogobius rubromaculatus | Yung-Lun Lin | CC BY 4.0 | GBIF |
| Red-spotted tetra Copeina guttata (museum specimen) | Lüling, Karl Heinz | CC BY-SA 4.0 | GBIF |
| Red-striped eartheater Geophagus surinamensis | anonymous | CC BY-SA 4.0 | iNaturalist |
| Red-striped lyretail Aphyosemion striatum | Alexander Prokoshev | CC BY-SA 4.0 | Wikimedia Commons |
| Red-striped rasbora Trigonopoma pauciperforatum | Zakqary Roy | CC BY 4.0 | GBIF |
| Red-tail catfish Phractocephalus hemioliopterus | Whaldener Endo | CC0 1.0 | iNaturalist |
| Red-tailed black shark Epalzeorhynchos bicolor | Astellar87 | CC BY-SA 4.0 | iNaturalist |
| Red-tailed freshwater barracuda Acestrorhynchus falcatus | João D'Andretta | CC BY 4.0 | GBIF |
| Red-tailed rasbora Rasbora borapetensis | Nick Tobler (Cowturtle) | CC BY 4.0 | GBIF |
| Red-tailed redeye puffer Carinotetraodon irrubesco (museum specimen) | Neale Monks at English Wikipedia | CC BY-SA 3.0 | Wikimedia Commons |
| Red-tailed rock goby Sicyopterus lagocephalus | Mike Bowie | CC BY 4.0 | GBIF |
| Red-tailed squirrel loach Aborichthys elongatus | Rohit Naniwadekar | CC BY 4.0 | GBIF |
| Red-tailed tinfoil barb Barbonymus altus | Toby Y | CC BY 4.0 | GBIF |
| Redbreast acara Laetacara dorsigera | Kullander, SO | CC BY 4.0 | GBIF |
| Redeye puffer Carinotetraodon lorteti | Павлик Лисицын | CC BY 4.0 | GBIF |
| Redfin tiger loach Syncrossus berdmorei | Lerdsuwa | CC BY-SA 4.0 | iNaturalist |
| Redhead cichlid Vieja melanurus (museum specimen) | AJ Wacaser | CC BY 4.0 | Wikimedia Commons |
| Redlip blenny Ophioblennius atlanticus | Ben Jobson | CC BY 4.0 | iNaturalist |
| Redtail notho Nothobranchius guentheri | Jokuyken15 | CC BY 4.0 | Wikimedia Commons |
| Regal angelfish Pygoplites diacanthus | Unknown author | CC0 1.0 | iNaturalist |
| Regan's cichlid Maskaheros regani (museum specimen) | University of Kansas Biodiversity Institute | CC BY 4.0 | GBIF |
| Regan's dwarf pike cichlid Wallaciia regani | Silva-Oliveira C, Canto ALC, Ribeiro FRV | CC BY 4.0 | iNaturalist |
| Regan's julie Julidochromis regani | AuersTeam | CC BY-SA 4.0 | iNaturalist |
| Resplendent anthias Pseudanthias pulcherrimus (museum specimen) | P.C. Heemstra | CC BY 4.0 | GBIF |
| Reticulated cory Brochis reticulata | karsten_s | CC BY 4.0 | Wikimedia Commons |
| Reticulated hillstream loach Sewellia lineolata | Kaden Slone | CC BY 4.0 | iNaturalist |
| Retroculus lapidifer Retroculus lapidifer (museum specimen) | Tsssss | CC0 1.0 | iNaturalist |
| Retroculus xinguensis Retroculus xinguensis | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| Rhinogobius nantaiensis Rhinogobius nantaiensis | Heng Chian Li | CC BY 4.0 | GBIF |
| Rhinogobius similis Rhinogobius similis | りなべる | CC BY 4.0 | GBIF |
| Ribbon eel Rhinomuraena quaesita | Steve Childs | CC BY 4.0 | iNaturalist |
| Riccardia Riccardia chamedryfolia | Roger Rittmaster | CC BY 4.0 | iNaturalist |
| Riccia Riccia fluitans | aarongunnar | CC BY 4.0 | iNaturalist |
| Rice paddy herb Limnophila aromatica | 賴碧珠 | CC BY 4.0 | GBIF |
| Ricordea florida Ricordea florida | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Ricordea yuma Ricordea yuma | Debra Baker | CC BY 4.0 | iNaturalist |
| Ring-tailed cardinalfish Ostorhinchus aureus | Ditch Townsend | CC BY-SA 4.0 | iNaturalist |
| Ripsaw catfish Oxydoras niger | User:Cscott | CC BY-SA 3.0 | Wikimedia Commons |
| River buttercup Ranunculus inundatus | Petra Holland | CC BY 4.0 | GBIF |
| Rock beauty angelfish Holacanthus tricolor | desertnaturalist | CC BY 4.0 | iNaturalist |
| Rock boring urchin Echinometra mathaei (museum specimen) | anonymous | CC BY 4.0 | iNaturalist |
| Rock flower anemone Phymanthus crucifer | Robin White | CC BY 4.0 | iNaturalist |
| Rohani barb Dawkinsia rohani | Paulmathi Vinod | CC BY 4.0 | GBIF |
| Roman nose angelfish Pterophyllum leopoldi | Clinton & Charles Robertson from RAF Lakenheath, UK & San Marcos, TX, USA & UK | CC BY 2.0 | Wikimedia Commons |
| Ropefish Erpetoichthys calabaricus | Michał Zalewski | CC BY-SA 4.0 | iNaturalist |
| Rose line danio Danio jaintianensis | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Rosy barb Pethia conchonius | Kkonstan | CC BY 4.0 | iNaturalist |
| Rosy bitterling Rhodeus ocellatus (museum specimen) | book74 | CC BY-SA 3.0 | Wikimedia Commons |
| Rosy danio Danio roseus (museum specimen) | Lerdsuwa | CC BY-SA 3.0 | Wikimedia Commons |
| Rosy loach Physoschistura mango (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Rosy tetra Megalamphodus rosaceus | D. Bork, A. Zarske, and H.J. Richter | CC BY 4.0 | Wikimedia Commons |
| Rotala manipurensis Rotala manipurensis | Pranav Chandra Bose | CC BY 4.0 | GBIF |
| Rotala mexicana Rotala mexicana | Thomaz Ricardo Favreto Sinani | CC BY 4.0 | GBIF |
| Rotala rotundifolia Rotala rotundifolia | 葉子 | CC0 1.0 | iNaturalist |
| Rotala wallichii Rotala wallichii | VanLap Hoàng | CC BY 4.0 | iNaturalist |
| Roundleaf lindernia Lindernia rotundifolia | Sinaloa Silvestre | CC0 1.0 | GBIF |
| Roundtail paradise fish Macropodus ocellatus | Manuel Werner | CC BY-SA 4.0 | Wikimedia Commons |
| Royal acara Aequidens diadema | Cichlidae | CC0 | Wikimedia Commons |
| Royal butterfly danio Opsarius pulchellus (museum specimen) | Slunky | CC BY 4.0 | iNaturalist |
| Royal butterfly loach Hemimyzon nanensis (museum specimen) | Sitthi Kulabtong | CC BY 3.0 | Wikimedia Commons |
| Royal farlowella Sturisomatichthys aureus | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| Royal featherback Chitala blanci | BEDO (Thailand) | CC BY-SA 4.0 | Wikimedia Commons |
| Royal gramma Gramma loreto | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Royal pleco Panaque nigrolineatus | pl:user:lcamtuf | CC BY-SA 4.0 | iNaturalist |
| Rubber eel Typhlonectes natans | Aquatic_Caecilian_(Typhlonectes_natans).jpg : Cliff derivative work: Haplochromis ( talk ) | CC BY 2.0 | Wikimedia Commons |
| Rubbernose pleco Chaetostoma formosae (museum specimen) | Ictiologia Universidad Católica de Oriente | CC BY 2.0 | Wikimedia Commons |
| Rubripinnis killi Nothobranchius rubripinnis | Alexander Prokoshev | CC BY-SA 4.0 | Wikimedia Commons |
| Ruffled Amazon sword Echinodorus major (museum specimen) | Royal Botanic Gardens, Kew | CC BY 4.0 | GBIF |
| Rummy-nose tetra Hemigrammus rhodostomus | Bernat Arlandis | CC BY-SA 4.0 | iNaturalist |
| Rummynose rasbora Sawbwa resplendens | The Man On The Street at English Wikipedia | CC BY 3.0 | Wikimedia Commons |
| Rusty angelfish Centropyge ferrugata | Izuzuki diver | CC BY-SA 4.0 | iNaturalist |
| Rusty cichlid Iodotropheus sprengerae | Michael K. Oliver, Ph.D. | CC BY 4.0 | iNaturalist |
| Rusty cory Osteogaster rabauti | Jörg Vierke | CC BY 3.0 | Wikimedia Commons |
| Rusty longarm shrimp Macrobrachium dayanum (museum specimen) | Rejoice Gassah | CC BY 4.0 | Wikimedia Commons |
| Sabanus bumblebee goby Brachygobius sabanus | Zakqary Roy | CC BY 4.0 | GBIF |
| Saddle anemonefish Amphiprion ephippium | portioid | CC BY 4.0 | iNaturalist |
| Saddle-back loach Homaloptera orthogoniata | TropicalAquaticsRSA | CC BY-SA 4.0 | Wikimedia Commons |
| Saddleback butterflyfish Chaetodon ephippium | Donald Davesne | CC BY 4.0 | iNaturalist |
| Saddleback clownfish Amphiprion polymnus | Unknown author | CC0 1.0 | iNaturalist |
| Saddled bichir Polypterus endlicherii | harum.koh from Kobe city, Japan | CC BY-SA 2.0 | Wikimedia Commons |
| Sailfin molly Poecilia latipinna | Kai Squires | CC BY 4.0 | iNaturalist |
| Sailfin pleco Pterygoplichthys gibbiceps | Kamil Porembiński | CC BY-SA 4.0 | iNaturalist |
| Sailfin shark Labiobarbus leptocheilus | Zakqary Roy | CC BY 4.0 | GBIF |
| Sailfin tang Zebrasoma velifer | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Sailfin tetra Crenuchus spilurus (museum specimen) | Silva-Oliveira C, Canto ALC, Ribeiro FRV | CC BY 4.0 | Wikimedia Commons |
| Sally lightfoot crab Percnon gibbesi | Silke Baron | CC BY 4.0 | iNaturalist |
| Salt and pepper cory Corydoras habrosus | Dipsausje | CC BY 3.0 | Wikimedia Commons |
| Salvini cichlid Trichromis salvini | kkacheltje | CC0 1.0 | GBIF |
| Salvinia Salvinia minima | Lauren McLaurin | CC BY 4.0 | iNaturalist |
| Salvinia cucullata Salvinia cucullata | Shiwen Yu | CC0 1.0 | GBIF |
| Samurai betta Betta pallifina | Stacyh202 ( talk ) | CC BY-SA 3.0 | Wikimedia Commons |
| Sand sifting star Archaster typicus | Unknown author | CC0 1.0 | iNaturalist |
| Sand's cory Hoplisoma davidsandsi | MikoDaryl | CC BY-SA 4.0 | Wikimedia Commons |
| Sankey's dottyback Pseudochromis sankeyi | John E. Randall | CC BY 4.0 | GBIF |
| Santa cruz cory Hoplisoma cruziense | Ramon and Suzanne Vargas | CC BY-SA 4.0 | Wikimedia Commons |
| Sarawak rasbora Rasbora sarawakensis | Isaac Krone | CC BY 4.0 | GBIF |
| Sardine cichlid Cyprichromis leptosoma | Mario Rubio García | CC BY 2.0 | Wikimedia Commons |
| Sargassum triggerfish Xanthichthys ringens | Cliff | CC BY 4.0 | iNaturalist |
| Satanoperca lilith Satanoperca lilith | Whaldener Endo | CC0 1.0 | GBIF |
| Saulosi cichlid Pseudotropheus saulosi | Gerard Delany | CC BY-SA 4.0 | iNaturalist |
| Scarlet badis Dario dario | ATuin-hek at English Wikipedia | CC0 | Wikimedia Commons |
| Scarlet betta Betta coccina | Zakqary Roy | CC BY 4.0 | GBIF |
| Scarlet cactus pleco Pseudacanthicus pirarara | JSutton93 | CC BY-SA 4.0 | iNaturalist |
| Scarlet goby Rhinogobius zhoui | Andrewbogott | CC BY-SA 4.0 | Wikimedia Commons |
| Scarlet reef hermit crab Paguristes cadenati | Andreas März | CC BY 4.0 | iNaturalist |
| Schwartz's cory Hoplisoma schwartzi | Thomas Land | Public domain | Wikimedia Commons |
| Scissortail dartfish Ptereleotris evides | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Scissortail rasbora Rasbora trilineata | Lerdsuwa | CC BY-SA 4.0 | iNaturalist |
| Scooter dragonet Neosynchiropus ocellatus | Nicola Crockford | CC BY 4.0 | iNaturalist |
| Scopas tang Zebrasoma scopas | Debra Baker | CC BY 4.0 | iNaturalist |
| Scorpion betta Betta brownorum (museum specimen) | GBIF contributor | CC BY-SA 3.0 | GBIF |
| Scott's fairy wrasse Cirrhilabrus scottorum | Debra Baker | CC BY 4.0 | iNaturalist |
| Scroll coral Turbinaria mesenterina | Rachel Crane | CC BY 4.0 | iNaturalist |
| Sebae anemone Radianthus crispa | Manis Lin | CC0 1.0 | iNaturalist |
| Sebae clownfish Amphiprion sebae | hasteyr, osa oikeuksista pidätetään | CC BY 4.0 | iNaturalist |
| Senegal bichir Polypterus senegalus | ictheostega | CC BY 4.0 | iNaturalist |
| Sergeant major Abudefduf saxatilis | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Serpae tetra Hyphessobrycon eques | Faucon~commonswiki | CC BY-SA 4.0 | iNaturalist |
| Serpent star Ophioderma spp. | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Seven-spot archerfish Toxotes chatareus | Thorsten Hackbarth | CC BY 4.0 | GBIF |
| Severum Heros efasciatus | Julien Renoult | CC BY 4.0 | iNaturalist |
| Sexy shrimp Thor amboinensis | Unknown author | CC0 1.0 | iNaturalist |
| Sharphead eartheater Satanoperca acuticeps | Whaldener Endo | CC0 1.0 | GBIF |
| Shelldwelling clown goby Mugilogobius adeia (museum specimen) | GBIF contributor | CC BY-SA 4.0 | GBIF |
| Shining pencilfish Nannostomus nitidus (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Shoreweed Littorella uniflora | Jonas Morsing Thomasen | CC BY 4.0 | GBIF |
| Short nose algae shrimp Caridina longirostris (museum specimen) | Laura FLAMME | CC BY 4.0 | Wikimedia Commons |
| Shortfin tandan Neosilurus brevidorsalis (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Siam tiger barb Puntigrus partipentazona | Nick Tobler (Cowturtle) | CC BY 4.0 | GBIF |
| Siamese algae eater Crossocheilus oblongus | aleander2137 | CC BY-SA 4.0 | Wikimedia Commons |
| Siamese hatchet Laubuka siamensis | Zakqary Roy | CC BY 4.0 | GBIF |
| Side spot loach Mesonoemacheilus guentheri (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Sieve cichlid Chiapaheros grammodes | Daniel Pineda Vera | CC BY 4.0 | GBIF |
| Silver arowana Osteoglossum bicirrhosum | User:Qwertzy2 | CC BY-SA 4.0 | iNaturalist |
| Silver cichlid Maskaheros argenteus | Tylwyth Eldar | CC BY-SA 4.0 | Wikimedia Commons |
| Silver distichodus Distichodus affinis (museum specimen) | Natural History Museum | CC BY 4.0 | Wikimedia Commons |
| Silver dollar Metynnis argenteus | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Silver hatchetfish Gasteropelecus sternicla (museum specimen) | University of Kansas Biodiversity Institute | CC BY 4.0 | GBIF |
| Silver kuhli loach Pangio anguillaris (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Silver tiger perch Datnioides polota | Kullander, SO | CC BY 4.0 | GBIF |
| Silvertip tetra Hasemania nana | Filtropat | CC BY-SA 4.0 | iNaturalist |
| Simpsonichthys santanae Simpsonichthys santanae | Andrew Bogott | CC BY-SA 4.0 | Wikimedia Commons |
| Siquia convict Archocentrus siquia | Doreen | CC BY 4.0 | GBIF |
| Sittaung stream catfish Akysis longifilis (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Six-banded angelfish Pomacanthus sexstriatus | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Six-banded distichodus Distichodus sexfasciatus | Hectonichus | CC BY-SA 3.0 | Wikimedia Commons |
| Six-barred lamprologus Neolamprologus sexfasciatus | Guérin Nicolas ( messages ) | CC BY-SA 3.0 | Wikimedia Commons |
| Six-barred panchax Epiplatys sexfasciatus | Alexander Prokoshev | CC BY-SA 4.0 | Wikimedia Commons |
| Six-line wrasse Pseudocheilinus hexataenia | Susan Prior | CC BY 4.0 | iNaturalist |
| Sixray corydoras Aspidoras pauciradiatus | Cedricguppy - Loury Cédric | CC BY-SA 4.0 | Wikimedia Commons |
| Skiffia multipunctata Skiffia multipunctata | Livebearerguy | CC BY-SA 4.0 | Wikimedia Commons |
| Skunk cleaner shrimp Lysmata amboinensis | Chris Moody | CC BY 4.0 | iNaturalist |
| Skunk corydoras Corydoras granti | -serwacy01- | CC BY-SA 4.0 | Wikimedia Commons |
| Skunk loach Yasuhikotakia morleti | Zakqary Roy | CC BY 4.0 | GBIF |
| Slate pleco Pseudancistrus genisetiger | Gabriel M. Rolim | CC BY 4.0 | iNaturalist |
| Slender betta Betta bellica | Zakqary Roy | CC BY 4.0 | GBIF |
| Slender buffalo head Steatocranus tinanti | Cedricguppy - Loury Cédric | CC BY-SA 4.0 | Wikimedia Commons |
| Slender lungfish Protopterus dolloi (museum specimen) | Takada@mex | CC BY-SA 3.0 | Wikimedia Commons |
| Slipper coral Polyphyllia talpina | Ryan McMinds | CC BY 4.0 | iNaturalist |
| Small water clover Marsilea minuta | Robert H. Wardell | CC0 1.0 | GBIF |
| Smallscale cyprichromis Cyprichromis microlepidotus | Rufus46 | CC BY-SA 3.0 | Wikimedia Commons |
| Smudge spot cory Hoplisoma simile | Sergen Tuncer | CC BY 3.0 | Wikimedia Commons |
| Snakehead betta Betta channoides | Ryan O.Hershey | CC BY 4.0 | Wikimedia Commons |
| Snakeskin barb Desmopuntius rhomboocellatus | Rupert A. Collins | CC BY 4.0 | iNaturalist |
| Snakeskin gourami Trichopodus pectoralis | Sabarni Sarker | CC BY 4.0 | GBIF |
| Snowflake moray Echidna nebulosa | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Sohal tang Acanthurus sohal | Hannes Grobe/AWI | CC BY 4.0 | iNaturalist |
| Solar fairy wrasse Cirrhilabrus solorensis | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Somphong's rasbora Trigonostigma somphongsi | Lerdsuwa | CC BY-SA 3.0 | Wikimedia Commons |
| South American leaf fish Monocirrhus polyacanthus | Juergen goevert | CC BY-SA 3.0 | Wikimedia Commons |
| Spadetailed checkerboard cichlid Dicrossus maculatus (museum specimen) | Silva-Oliveira C, Canto ALC, Ribeiro FRV | CC BY 4.0 | Wikimedia Commons |
| Spanish hogfish Bodianus rufus | Jay Brasher | CC BY 4.0 | iNaturalist |
| Spanish ribbed newt Pleurodeles waltl | DataBase Center for Life Science (DBCLS) | CC BY 4.0 | Wikimedia Commons |
| Spanner barb Striuntius lateristriga (museum specimen) | W.A. Djatmiko ( Wie146 ) | CC BY-SA 3.0 | Wikimedia Commons |
| Sparkling gourami Trichopsis pumila | Zikamoi | CC BY 4.0 | iNaturalist |
| Spatuloricaria evansii Spatuloricaria evansii (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Speckled peacock bass Cichla temensis (museum specimen) | SimonovichF | CC BY-SA 4.0 | Wikimedia Commons |
| Spider decorator crab Camposcia retusa | portioid | CC BY 4.0 | iNaturalist |
| Spiketail paradisefish Pseudosphromenus cupanus | renjus box | CC BY 4.0 | GBIF |
| Spiny loach Lepidocephalichthys thermalis | Thuhiru S. Yapa | CC BY 4.0 | GBIF |
| Splash tetra Copella arnoldi | Zikamoi | CC BY 3.0 | Wikimedia Commons |
| Splendid lyretail Aphyosemion splendopleure | Andrew Bogott | CC BY-SA 4.0 | Wikimedia Commons |
| Spongodes montipora Montipora spongodes (museum specimen) | Stephen Keable|Mandy Reid | CC BY 4.0 | GBIF |
| Spot cheek cichlid Thorichthys maculipinnis | 5snake5 | CC0 | Wikimedia Commons |
| Spot starry night cichlid Paratilapia polleni | Tylwyth Eldar | CC BY-SA 4.0 | Wikimedia Commons |
| Spot tail algae eater Crossocheilus reticulatus | Graf zu Pappenheim | CC BY-SA 4.0 | Wikimedia Commons |
| Spotfin betta Betta macrostoma (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Spotfin goby cichlid Tanganicodus irsacae | The original uploader was MidgleyDJ at English Wikipedia . | CC BY-SA 2.5 | Wikimedia Commons |
| Spotfin hatchetfish Thoracocharax stellatus | demianlescano | CC0 1.0 | iNaturalist |
| Spotscale barb Enteromius holotaenia (museum specimen) | Jonathan (Jon) Armbruster | CC BY 2.0 | Wikimedia Commons |
| Spotted armatus cory Hoplisoma armatum (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Spotted Australian arowana Scleropages leichardti | Kenneth Foster | CC BY 4.0 | GBIF |
| Spotted badis Badis assamensis (museum specimen) | দিব্য দত্ত | CC0 | Wikimedia Commons |
| Spotted barb Barbodes binotatus | Abu Hamas | CC BY-SA 4.0 | Wikimedia Commons |
| Spotted blue-eye Pseudomugil gertrudae | Der Regenbogenfisch | CC BY-SA 4.0 | iNaturalist |
| Spotted boxfish Ostracion meleagris | Bernard Picton | CC BY 4.0 | iNaturalist |
| Spotted Congo puffer Tetraodon schoutedeni | Momota, K., DOI, H., Obata, H., and Sakai, H. | CC0 | Wikimedia Commons |
| Spotted cory Hoplisoma brevirostre (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Spotted corydoras Brochis ambiacus (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Spotted headstander Chilodus punctatus | Jörn | CC BY-SA 2.0 | Wikimedia Commons |
| Spotted hoplo Megalechis thoracata | Diogo Luiz | CC BY 4.0 | GBIF |
| Spotted kuhli loach Pangio muraeniformis | Nat Tarbox | CC BY 2.0 | Wikimedia Commons |
| Spotted mandarin Synchiropus picturatus | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Spotted metynnis Metynnis maculatus | Vincent A. Vos | CC BY 4.0 | GBIF |
| Spotted pike characin Boulengerella maculata | Kathy Richardson | CC BY 4.0 | GBIF |
| Spotted sailfin plecostomus Pterygoplichthys joselimaianus | Renato Moraes | CC BY 4.0 | GBIF |
| Spotted scat Scatophagus argus | Tylwyth Eldar | CC BY-SA 4.0 | Wikimedia Commons |
| Spotted severum Heros notatus | Klaus Rudloff | CC BY-SA 4.0 | Wikimedia Commons |
| Spotted silver dollar Metynnis lippincottianus | Pablo Cauã da Silva Toledo | CC BY 4.0 | GBIF |
| Spotted splash tetra Copella nattereri (museum specimen) | Natural History Museum | CC BY 4.0 | Wikimedia Commons |
| Spotted talking catfish Agamyxis pectinifrons | Adolsomee | CC BY-SA 3.0 | Wikimedia Commons |
| Springer's damsel Chrysiptera springeri | Dan Schofield | CC BY 4.0 | iNaturalist |
| Springer's dottyback Pseudochromis springeri | Jean-Paul Boerekamps | CC0 1.0 | iNaturalist |
| Squamosa clam Tridacna squamosa | Dan Schofield | CC BY 4.0 | iNaturalist |
| Square-spot anthias Pseudanthias pleurotaenia | Debra Baker | CC BY 4.0 | iNaturalist |
| Starck's damsel Chrysiptera starcki | Izuzuki, osa oikeuksista pidätetään | CC BY 4.0 | iNaturalist |
| Starlight bushynose pleco Ancistrus dolichopterus | Graf zu Pappenheim | CC BY-SA 4.0 | Wikimedia Commons |
| Starry blenny Salarias ramosus | Dan Schofield | CC BY 4.0 | iNaturalist |
| Stars and stripes puffer Arothron hispidus | Piotr Lukasik | CC BY 4.0 | iNaturalist |
| Staurogyne repens Staurogyne repens (museum specimen) | Maria Naélia Silva | CC BY 4.0 | GBIF |
| Steindachner's apisto Apistogramma steindachneri (museum specimen) | Jonathan (Jon) Armbruster | CC BY-SA 2.0 | Wikimedia Commons |
| Steinitz shrimp goby Amblyeleotris steinitzi | Julien Renoult | CC BY 4.0 | iNaturalist |
| Sterbai cory Corydoras sterbai | Thomas Laursen | CC BY 4.0 | iNaturalist |
| Stigmosa betta Betta stigmosa | Zakqary Roy | CC BY 4.0 | GBIF |
| Stomatella snail Stomatella auricula (museum specimen) | Manuel CABALLER | CC BY 4.0 | iNaturalist |
| Stomatepia pindu Stomatepia pindu | Cedricguppy - Loury Cédric | CC BY-SA 4.0 | Wikimedia Commons |
| Strawberry betta Betta albimarginata | Wikimedia Commons contributor | CC BY-SA 3.0 | Wikimedia Commons |
| Strawberry licorice gourami Parosphromenus nagyi | Zakqary Roy | CC BY 4.0 | GBIF |
| Strawberry rasbora Boraras naevus | Andrew Bogott | CC BY-SA 4.0 | Wikimedia Commons |
| Strawberry shortcake acropora Acropora microclados | P Muir | CC BY 4.0 | GBIF |
| Stream bogmoss Mayaca fluviatilis | Guillaume Delaitre | CC BY 4.0 | GBIF |
| Stringy moss Leptodictyum riparium | HermannSchachner | CC0 | Wikimedia Commons |
| Striped barb Desmopuntius johorensis | Zakqary Roy | CC BY 4.0 | iNaturalist |
| Striped glass catfish Kryptopterus macrocephalus | Zakqary Roy | CC BY 4.0 | GBIF |
| Striped goby cichlid Eretmodus cyanostictus (museum specimen) | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Striped headstander Anostomus anostomus | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Striped hill trout Opsarius barna (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Striped kribensis Pelvicachromis taeniatus | Neale Monks at en.wikipedia | CC BY-SA 3.0 | Wikimedia Commons |
| Striped pike characin Boulengerella lateristriga (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Striped Raphael catfish Platydoras armatulus | Kacper Aleksander | CC BY-SA 4.0 | Wikimedia Commons |
| Striped rubbernose pleco Chaetostoma thomasi (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Striped scat Selenotoca multifasciata | RatioTile | CC BY-SA 4.0 | Wikimedia Commons |
| Stylophora Stylophora pistillata | João D'Andretta | CC BY 4.0 | iNaturalist |
| Sulawesi cardinal shrimp Caridina dennerli | DirkBlankenhaus | CC BY-SA 4.0 | iNaturalist |
| Sulphur-headed hap Otopharynx lithobates | The original uploader was Sviemeister at English Wikipedia . | CC BY 2.5 | Wikimedia Commons |
| Sulphurhead peacock Aulonocara maylandi | The original uploader was Ged 02 at English Wikipedia . | CC BY-SA 2.5 | Wikimedia Commons |
| Sultan pleco Leporacanthicus joselimai | Thomas Siems | CC BY-SA 2.0 | Wikimedia Commons |
| Sumatran two spot cat Mystus bimaculatus | Zakqary Roy | CC BY 4.0 | GBIF |
| Sumo loach II Schistura cf. balteata | Gerhard Ott | CC BY 3.0 | Wikimedia Commons |
| Sun catfish Horabagrus brachysoma (museum specimen) | Ranjith-chemmad | CC BY-SA 4.0 | Wikimedia Commons |
| Sun coral Tubastraea coccinea | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Sun loach Yasuhikotakia eos | Lerdsuwa | CC BY-SA 3.0 | Wikimedia Commons |
| Sun thorn nerite snail Clithon donovani (museum specimen) | Manuel CABALLER | CC BY 4.0 | Wikimedia Commons |
| Sunkist shrimp Caridina thambipillai | Andrew Bogott | CC BY-SA 4.0 | iNaturalist |
| Sunshine peacock Aulonocara baenschi | Rjcastillo | CC BY-SA 4.0 | Wikimedia Commons |
| Sunshine pleco Scobinancistrus aureatus (museum specimen) | Gabriel Lelis Togni | CC BY 3.0 | Wikimedia Commons |
| Super VC 10 hap Placidochromis milomo (museum specimen) | Kerry-Ann van der Walt | CC BY 4.0 | GBIF |
| Sven's eartheater cichlid Geophagus sveni | Gabriel Augusto Faria | CC BY 4.0 | GBIF |
| Swamp barb Puntius chola | Tarun Meena | CC BY 4.0 | GBIF |
| Swamp dwarf crayfish Cambarellus puer | Nigel Hoadley | CC BY 4.0 | GBIF |
| Swissguard basslet Liopropoma rubre | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Swordtail Xiphophorus hellerii | Bastet78 | CC BY-SA 3.0 | Wikimedia Commons |
| Sychr's catfish Corydoras sychri (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Synodontis granulosus Synodontis granulosus (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Synodontis ocellifer catfish Synodontis ocellifer | Original uploader was Tameff at pl.wikipedia | CC BY-SA 2.5 | Wikimedia Commons |
| Süßwassertang Lomariopsis lineata | Obsidian Soul | CC BY 4.0 | Wikimedia Commons |
| T-bar cichlid Amatitlania sajica | Nick Tobler (Cowturtle) | CC BY 4.0 | iNaturalist |
| Tail-spot pygmy cory Corydoras hastatus | AquariaNR | CC BY-SA 4.0 | iNaturalist |
| Tailspot blenny Ecsenius stigmatura | desertnaturalist | CC BY 4.0 | iNaturalist |
| Tailspot ctenopoma Ctenopoma kingsleyae | John P Friel | CC BY 4.0 | GBIF |
| Taiwan bee shrimp Caridina cantonensis | Toby Y | CC BY 4.0 | GBIF |
| Taiwan hill trout Zacco pachycephalus | Mickey Wu | CC BY 4.0 | GBIF |
| Taiwan moss Taxiphyllum alternans | Randal | CC0 1.0 | iNaturalist |
| Talbot's damsel Chrysiptera talboti | cello caruso-turiello | CC BY 4.0 | iNaturalist |
| Tambraparni barb Dawkinsia tambraparniei | AravindManoj | CC BY-SA 4.0 | Wikimedia Commons |
| Tanganyika killifish Lamprichthys tanganicanus | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Tanganyikan spiny eel Mastacembelus ellipsifer | The original uploader was Jtanganyika at French Wikipedia . | CC BY-SA 3.0 | Wikimedia Commons |
| Teardrop butterflyfish Chaetodon unimaculatus | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Telmatochromis vittatus Telmatochromis vittatus | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Temple plant Hygrophila corymbosa | Solidpicture | CC BY 4.0 | iNaturalist |
| Tenuis acropora Acropora tenuis | Jean-Paul Boerekamps | CC0 1.0 | iNaturalist |
| Tequila goodeid Zoogoneticus tequila | Aprileng14 | CC0 | Wikimedia Commons |
| Texas cichlid Herichthys cyanoguttatus | Nick Loveland | CC0 1.0 | iNaturalist |
| Thai micro crab Limnopilos naiyanetri | Emilia Murray | CC BY-SA 4.0 | iNaturalist |
| Thai onion plant Crinum thaianum | Ito Y, Barfod A | CC BY 4.0 | Wikimedia Commons |
| Thick-lipped gourami Trichogaster labiosa (museum specimen) | Fang, F | CC BY 4.0 | GBIF |
| Threadfin acara Acarichthys heckelii | Whaldener Endo | CC0 1.0 | GBIF |
| Threadfin butterflyfish Chaetodon auriga | zsispeo | CC BY-SA 4.0 | iNaturalist |
| Threadfin cardinalfish Zoramia leptacantha | Chrumps | CC BY-SA 4.0 | iNaturalist |
| Threadfin cichlid Petrochromis trewavasae (museum specimen) | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| Threadfin rainbowfish Iriatherina werneri | anonymous | CC BY-SA 4.0 | iNaturalist |
| Three spot cichlid Amphilophus trimaculatus | Francisco Emilio Roldán Velasco | CC BY 4.0 | GBIF |
| Three spot forest halfbeak Hemirhamphodon kuekenthali | John Witton | CC BY 4.0 | GBIF |
| Three striped African glass catfish Pareutropius buffei | Bloodshot20 | CC0 | Wikimedia Commons |
| Three-lined neolebias Neolebias trilineatus (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Three-lined pencilfish Nannostomus trifasciatus (museum specimen) | Lüling, Karl Heinz | CC BY-SA 4.0 | GBIF |
| Three-spot gourami Trichopodus trichopterus | Carnat Joel | CC BY 4.0 | iNaturalist |
| Three-spot headstander Pseudanos trimaculatus | Michael Bakker Paiva | CC BY 4.0 | GBIF |
| Three-stripe damsel Dascyllus aruanus | dr.scott.mills | CC BY-SA 4.0 | iNaturalist |
| Three-striped apisto Apistogramma trifasciata | Douglas Lopes | CC BY 4.0 | GBIF |
| Threespot eartheater Satanoperca daemon | lwolfartist | CC BY 2.0 | Wikimedia Commons |
| Thunderbolt crayfish Cherax pulcher | Christian Lukhaup | CC BY 4.0 | iNaturalist |
| Thuttinjet stone loach Nemacheilus stigmofasciatus | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Tiburon limia Limia tridens (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Tic-tac-toe barb Pethia stoliczkana | Kullander, SO | CC BY 4.0 | GBIF |
| Ticto barb Pethia ticto | Ravuri Krishna Chaitanya | CC BY 4.0 | GBIF |
| Tiger badis Badis kyar (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Tiger barb Puntigrus tetrazona | Anandarajkumar | CC BY-SA 4.0 | iNaturalist |
| Tiger batasio cat Batasio tigrinus | Utain Pummarin | CC BY 4.0 | iNaturalist |
| Tiger cowry Cypraea tigris | Rickard Zerpe | CC BY 4.0 | iNaturalist |
| Tiger lotus Nymphaea lotus (syn. N. zenkeri) | Lucy Keith-Diagne | CC BY 4.0 | iNaturalist |
| Tiger pike cichlid Lugubria tigrina (museum specimen) | Unknown | CC BY 4.0 | GBIF |
| Tiger pistol shrimp Alpheus bellulus | Dan Schofield | CC BY 4.0 | iNaturalist |
| Tiger shovelnose Pseudoplatystoma tigrinum | Yinan Chen | Public Domain | Wikimedia Commons |
| Tiger shovelnose catfish Pseudoplatystoma fasciatum | Åhlander, E | CC BY 4.0 | GBIF |
| Tiger silver dollar Metynnis fasciatus | Ong Jyh Seng | CC BY-SA 4.0 | iNaturalist |
| Tiger spike chopstick snail Stenomelania acutospira | Auradyme | CC BY 4.0 | GBIF |
| Tiger tail sea cucumber Holothuria hilla | François Michonneau | CC BY 4.0 | iNaturalist |
| Tiger teddy Neoheterandria elegans | Livebearerguy | CC BY-SA 4.0 | Wikimedia Commons |
| Tiger watchman goby Valenciennea wardii | Ewout Knoester | CC BY-SA 4.0 | iNaturalist |
| Tinfoil barb Barbonymus schwanenfeldii | Adrian Tync | CC BY 4.0 | Wikimedia Commons |
| Toadstool leather coral Sarcophyton glaucum | Diego Delso | CC BY-SA 4.0 | iNaturalist |
| Toba betta Betta rubra (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Tomato clownfish Amphiprion frenatus | Pierre Pericard | CC BY 4.0 | iNaturalist |
| Tomini tang Ctenochaetus tominiensis | Debra Baker | CC BY 4.0 | iNaturalist |
| Tongue coral Herpolitha limax | portioid | CC BY 4.0 | iNaturalist |
| Toothcup Rotala ramosior | Robert H. Mohlenbrock | Public domain | Wikimedia Commons |
| Topaz cichlid Amatitlania myrnae | Mattia Nocciola | CC BY-SA 4.0 | Wikimedia Commons |
| Torch coral Euphyllia glabrescens | Debra Baker | CC BY 4.0 | iNaturalist |
| Tortuosa acropora Acropora tortuosa (museum specimen) | Patricia Perez | CC0 1.0 | GBIF |
| Tree coral Litophyton arboreum | Alexander Vasenin | CC BY-SA 4.0 | iNaturalist |
| Tretocephalus cichlid Neolamprologus tretocephalus | Chrumps | CC BY-SA 3.0 | Wikimedia Commons |
| Trewavas' cichlid Labeotropheus trewavasae | Victor Sounds | CC BY-SA 2.0 | Wikimedia Commons |
| Trinidad plecostomus Hypostomus punctatus | Diogo Luiz | CC BY 4.0 | GBIF |
| Trochus snail Trochus spp. (museum specimen) | Shaunak Modi | CC BY 4.0 | iNaturalist |
| Tropheus duboisi Tropheus duboisi | lienyuan lee | CC BY 4.0 | iNaturalist |
| Tropheus moorii Tropheus moorii (museum specimen) | R. Bills; Russell Chalmers; Nicolas Riddin | CC BY 4.0 | GBIF |
| True bumblebee goby Brachygobius xanthomelas | Frank M. Greco | CC BY 3.0 | Wikimedia Commons |
| True julii cory Hoplisoma julii | Kai Schreiber | CC BY-SA 2.0 | Wikimedia Commons |
| True parrot cichlid Hoplarchus psittacus | Редько Юрій (Користувач:Mazapura) | CC BY-SA 3.0 | Wikimedia Commons |
| True tiger moray eel Gymnothorax polyuranodon | coenobita | CC BY 4.0 | GBIF |
| Tucanare peacock bass Cichla monoculus (museum specimen) | LuisGomez111 at English Wikipedia | CC BY-SA 3.0 | Wikimedia Commons |
| Tucanfish Chalceus erythrurus | Kullander, SO | CC BY 4.0 | GBIF |
| Turquoise rainbowfish Melanotaenia lacustris | Klaus Rudloff | CC BY-SA 4.0 | iNaturalist |
| Tuxedo urchin Mespilia globulus | portioid | CC BY 4.0 | iNaturalist |
| Tweediei's licorice gourami Parosphromenus tweediei (museum specimen) | Royal Ontario Museum | CC BY 4.0 | Wikimedia Commons |
| Twig catfish Farlowella vittata | CONTERALLY at Italian Wikipedia | CC BY 3.0 | Wikimedia Commons |
| Twin striped barb Desmopuntius gemellus (museum specimen) | Ahsan al hidayat | CC BY-SA 4.0 | Wikimedia Commons |
| Two saddle cory Corydoras weitzmani | NasserHalaweh | CC BY-SA 4.0 | Wikimedia Commons |
| Two-banded lyretail Aphyosemion bivittatum | Violaine2, France | CC BY-SA 3.0 | Wikimedia Commons |
| Two-leaf watermilfoil Myriophyllum heterophyllum | Greghig Jirheg | CC BY 4.0 | GBIF |
| Two-spot bristletooth Ctenochaetus binotatus | Debra Baker | CC BY 4.0 | iNaturalist |
| Two-spot goby Signigobius biocellatus | Micha Baum | CC BY-SA 4.0 | iNaturalist |
| Two-spotted barb Puntius bimaculatus (museum specimen) | Manojk | CC BY-SA 3.0 | Wikimedia Commons |
| Two-striped dwarf cichlid Apistogramma bitaeniata | Britzke | CC BY-SA 2.0 | Wikimedia Commons |
| Uaru Uaru amphiacanthoides | Brent Tibbats | CC BY 4.0 | iNaturalist |
| Umbee cichlid Kronoheros umbrifer (museum specimen) | Ictiologia Universidad Católica de Oriente | CC BY 2.0 | Wikimedia Commons |
| Umbrella dwarf cichlid Apistogramma borellii | Dornenwolf | CC BY 4.0 | iNaturalist |
| Umbrella hairgrass Eleocharis vivipara | geosesarma | CC BY 4.0 | GBIF |
| Undata montipora Montipora undata | Debra Baker | CC BY 4.0 | iNaturalist |
| Undulated triggerfish Balistapus undulatus | Derek Keats | CC BY 4.0 | iNaturalist |
| Upside-down catfish Synodontis nigriventris | en:User:Neale Monks | CC BY-SA 4.0 | iNaturalist |
| Uruguay sword Echinodorus uruguayensis | Rafael Tosi | CC BY 4.0 | GBIF |
| Valentini puffer Canthigaster valentini | portioid | CC BY 4.0 | iNaturalist |
| Valida acropora Acropora valida | João D'Andretta | CC BY 4.0 | iNaturalist |
| Vallisneria Vallisneria spiralis | Paolo Zucca | CC BY 4.0 | iNaturalist |
| Vallisneria australis Vallisneria australis | JaneR | CC BY 4.0 | GBIF |
| Vampire danio Danionella priapus | Beta Mahatvaraj | CC BY-SA 4.0 | Wikimedia Commons |
| Vampire shrimp Atya gabonensis | Citron | CC BY-SA 4.0 | iNaturalist |
| Vampire tetra Hydrolycus armatus | Chao 江星辰 | CC0 1.0 | GBIF |
| Vanderbilt's chromis Pycnochromis vanderbilti | Debra Baker | CC BY 4.0 | iNaturalist |
| Variabilichromis moorii Variabilichromis moorii | JBenoit | CC BY-SA 3.0 | Wikimedia Commons |
| Variatus platy Xiphophorus variatus | Konstantin Gerasimov | CC BY 4.0 | iNaturalist |
| Venustus cichlid Nimbochromis venustus | ictheostega | CC BY 4.0 | iNaturalist |
| Vermiculated synodontis Synodontis schoutedeni | John P Friel | CC BY 4.0 | GBIF |
| Vieja fenestrata Vieja fenestrata (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Vietnamese porcupine hillstream loach Sewellia speciosa (museum specimen) | GBIF contributor | CC BY-SA 4.0 | GBIF |
| Vietnamese white cloud Tanichthys micagemmae (museum specimen) | Herder, Fabian | CC BY-SA 4.0 | GBIF |
| Violet goby Gobioides broussonnetii | Cedricguppy - Loury Cédric | CC BY-SA 4.0 | iNaturalist |
| Violet shark Labeo boga (museum specimen) | University of Kansas Biodiversity Institute | CC BY 4.0 | GBIF |
| Vlamingi tang Naso vlamingii | Sockrosma | CC BY 4.0 | iNaturalist |
| Volcano rasbora Rasbora vulcanus (museum specimen) | Andrewbogott | CC BY-SA 4.0 | Wikimedia Commons |
| Volitans lionfish Pterois volitans | Jens Petersen | CC BY 4.0 | iNaturalist |
| War coral Favites pentagona | Ewout Knoester | CC BY-SA 4.0 | iNaturalist |
| Watanabe's angelfish Genicanthus watanabei | 呂一起(Lyu yi-chi) | CC BY 4.0 | iNaturalist |
| Water hedge Didiplis diandra | Samuel A Schmid, PhD, PWS | CC BY 4.0 | GBIF |
| Water hyacinth Pontederia crassipes | Scott Edmunds | CC0 1.0 | GBIF |
| Water lettuce Pistia stratiotes | 葉子 | CC0 1.0 | iNaturalist |
| Water mint Mentha aquatica | David Katznelson | CC BY 4.0 | GBIF |
| Water pimpernel Samolus parviflorus | Conway Hawn | CC0 1.0 | GBIF |
| Water poppy Hydrocleys nymphoides | Fabricio Carvalho da Silva | CC BY 4.0 | GBIF |
| Water sprite Ceratopteris thalictroides | Татьяна Максимова | CC BY 4.0 | iNaturalist |
| Water star grass Heteranthera zosterifolia | Paulo C. O. Cunha | CC BY 4.0 | GBIF |
| Water violet Hottonia palustris | Hans Van Calster | CC0 1.0 | GBIF |
| Water wisteria Hygrophila difformis | chiuluan | CC BY 4.0 | iNaturalist |
| Western rainbowfish Melanotaenia australis | Tom Ferguson | CC BY 4.0 | GBIF |
| Wheeler's shrimp goby Amblyeleotris wheeleri | Debra Baker | CC BY 4.0 | iNaturalist |
| Whiptail catfish Rineloricaria sp. (museum specimen) | W.S.Serra | CC BY 4.0 | Wikimedia Commons |
| White cloud mountain minnow Tanichthys albonubes | Zinogre | CC BY-SA 4.0 | iNaturalist |
| White whisker lancer cat Bagrichthys majusculus (museum specimen) | Bagrichthys majusculus Ng, 2002 | CC BY-SA 4.0 | Wikimedia Commons |
| White-cheeked goby Rhinogobius duospilus | Schrodiskitten | CC BY 4.0 | GBIF |
| Whitecheek tang Acanthurus nigricans | Roger Rittmaster | CC BY 4.0 | iNaturalist |
| Whitespot eartheater Satanoperca leucosticta | Dr. David Midgley | CC BY-SA 2.5 | Wikimedia Commons |
| Whorled pennywort Hydrocotyle verticillata | MIMI | CC BY 4.0 | GBIF |
| Wide-band clownfish Amphiprion latezonatus | Ian V. Shaw / Reef Life Survey., osa oikeuksista pidätetään | CC BY 4.0 | iNaturalist |
| Willow hygro Hygrophila angustifolia | yatesy | CC BY 4.0 | GBIF |
| Willow moss Fontinalis antipyretica | Rune Zakariassen | CC BY 4.0 | GBIF |
| Wimpel piranha Catoprion mento (museum specimen) | Clinton & Charles Robertson | CC BY 4.0 | iNaturalist |
| Wine red betta Betta uberis (museum specimen) | CBG Photography Group, Centre for Biodiversity Genomics | CC BY 4.0 | Wikimedia Commons |
| Wolf cichlid Parachromis dovii | Nick Tobler (Cowturtle) | CC BY 4.0 | GBIF |
| Worm-jawed mormyrid Campylomormyrus tamandua (museum specimen) | Carl Hopkins | CC BY-SA 3.0 | Wikimedia Commons |
| Wrestling halfbeak Dermogenys pusilla | Ganjar Cahyadi | CC BY 4.0 | GBIF |
| X-ray tetra Pristella maxillaris | Debivort | CC BY-SA 4.0 | iNaturalist |
| Xingu cory Hoplisoma xinguense | Gabriel Santos | CC BY 3.0 | Wikimedia Commons |
| Xingu lipbrooder whiptail (L010) Loricaria birindellii (museum specimen) | Gabriel Lelis Togni | CC BY 3.0 | Wikimedia Commons |
| Yabby Cherax destructor | Jim | CC0 1.0 | GBIF |
| Yellow assessor Assessor flavissimus | Charmaine Thomas | CC BY 4.0 | GBIF |
| Yellow banded acara Bujurquina vittata | Pablo H Capovilla | CC BY 4.0 | GBIF |
| Yellow boxfish Ostracion cubicum | Georgina Jones | CC BY-SA 4.0 | iNaturalist |
| Yellow cabomba Cabomba aquatica | agujaceratops | CC BY 4.0 | GBIF |
| Yellow chopstick snail Stenomelania plicaria | 葉子 | CC0 1.0 | GBIF |
| Yellow clown goby Gobiodon okinawae | Jarro Nevsbaru | CC BY 4.0 | iNaturalist |
| Yellow coris wrasse Halichoeres chrysus | desertnaturalist | CC BY 4.0 | iNaturalist |
| Yellow fin goby Rhinogobius leavelli | observe-syz | CC0 1.0 | GBIF |
| Yellow hump geophagus Geophagus pellegrini | Kullander, SO | CC BY 4.0 | GBIF |
| Yellow korthaus killifish Nothobranchius korthausae | Andrew Bogott | CC BY-SA 4.0 | Wikimedia Commons |
| Yellow kribensis Wallaceochromis humilis | Jonathan (Jon) Armbruster | CC BY-SA 2.0 | Wikimedia Commons |
| Yellow lab cichlid Labidochromis caeruleus | Sviemeister | CC BY 4.0 | iNaturalist |
| Yellow phantom tetra Hyphessobrycon roseus | karsten_s | CC BY 4.0 | Wikimedia Commons |
| Yellow polyps Parazoanthus spp. | Robin White | CC BY 4.0 | iNaturalist |
| Yellow rock kribensis Paralabidochromis sauvagei (museum specimen) | Laban Musinguzi, Vianny Natugonza, Monica Nsega | CC BY 4.0 | GBIF |
| Yellow sand cichlid Xenotilapia flavipinnis | Daiju Azuma | CC BY-SA 4.0 | Wikimedia Commons |
| Yellow scroll coral Turbinaria reniformis | Tom Heijnen | CC BY 4.0 | iNaturalist |
| Yellow sea cucumber Colochirus robustus | Gregor Bailar | CC BY 4.0 | iNaturalist |
| Yellow seahorse Hippocampus kuda | Doreen | CC BY 4.0 | iNaturalist |
| Yellow tail barracuda Acestrorhynchus falcirostris | Whaldener Endo | CC0 1.0 | GBIF |
| Yellow tang Zebrasoma flavescens | User:Amada44 | CC BY 4.0 | iNaturalist |
| Yellow watchman goby Cryptocentrus cinctus | klukoff | CC BY 4.0 | iNaturalist |
| Yellow-striped cardinalfish Ostorhinchus cyanosoma | jeyre | CC BY 4.0 | iNaturalist |
| Yellow-tailed Congo tetra Alestopetersius caudalis (museum specimen) | The Trustees of the Natural History Museum, London | CC BY 4.0 | GBIF |
| Yellowhead jawfish Opistognathus aurifrons | Brian Gratwicke | CC BY 4.0 | iNaturalist |
| Yellowjacket cichlid Parachromis friedrichsthalii | Bernard DUPONT | CC BY-SA 4.0 | iNaturalist |
| Yellowline goby Elacatinus figaro | Donald Davesne | CC BY 4.0 | iNaturalist |
| Yellowtail blue damsel Chrysiptera parasema | Brian Ong | CC BY-SA 4.0 | iNaturalist |
| Yellowtail coris Coris gaimard | Pauline Walsh Jacobson | CC BY 4.0 | iNaturalist |
| Yoma danio Danio feegradei (museum specimen) | Kullander, SO | CC BY 4.0 | GBIF |
| Yoyo loach Botia almorhae (museum specimen) | Hamid Badar Osmany | CC BY 3.0 | Wikimedia Commons |
| Zebra acara Ivanacara adoketa (museum specimen) | Römer, U | CC BY 4.0 | GBIF |
| Zebra apple snail Asolene spixii (museum specimen) | Duarte Eliseo | CC0 1.0 | GBIF |
| Zebra crayfish Cherax peknyi | GeXeS | CC BY-SA 4.0 | Wikimedia Commons |
| Zebra danio Danio rerio | Bernat Arlandis | CC BY-SA 4.0 | iNaturalist |
| Zebra dwarf lionfish Dendrochirus zebra | zsispeo | CC BY-SA 4.0 | iNaturalist |
| Zebra loach Botia striata | Tristan Ferne | CC BY 4.0 | iNaturalist |
| Zebra mbuna Maylandia zebra | James-LaFontaine | CC BY 4.0 | GBIF |
| Zebra moray Gymnomuraena zebra | Dan Schofield | CC BY 4.0 | iNaturalist |
| Zebra obliquidens Haplochromis latifasciatus | The original uploader was MidgleyDJ at English Wikipedia . | CC BY-SA 2.5 | Wikimedia Commons |
| Zebra oto Otocinclus cocama | Frank M. Greco | CC BY 3.0 | Wikimedia Commons |
| Zebra pleco Hypancistrus zebra | Birger A | CC BY-SA 4.0 | iNaturalist |
| Zebra spiny eel Macrognathus zebrinus (museum specimen) | Fang, F | CC BY 4.0 | GBIF |
| Zebra tilapia Heterotilapia buttikoferi | Andrey Butko | CC BY-SA 3.0 | Wikimedia Commons |
| Zig-zag rainbowfish Glossolepis dorityi | JSutton93 | CC BY-SA 4.0 | Wikimedia Commons |
| Zipper loach Paracanthocobitis botia | Rejoice Gassah | CC BY 4.0 | iNaturalist |
| Zoanthids Zoanthus spp. | Susan Aide | CC BY 4.0 | iNaturalist |
| Zodiac loach Mesonoemacheilus triangularis | Bloopityboop | CC BY-SA 4.0 | Wikimedia Commons |
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