| English | Latino |
|---|
| Pygmy gourami, Sparklin gourami | Trichopsis pumila |
| Scotia Sea icefish, Lackfin icefish | Chaenocephalus aceratus |
|
Mirror dory | Zenopsis nebulosa |
|
Spatula-barbeled catfish | Phyllonemus typus |
| Abbott's moray eel, Stout moray | Gymnothorax eurostus |
| Abu mullet | Planiliza abu |
| Abudjubbe wrasse | Cheilinus abudjubbe |
| Achilles tang, Redspot surgeonfish, Redspot tang, Redtail surgeonfish | Acanthurus achilles |
| African angelshark | Squatina africana |
| African banded barb, Angola barb, Blue-barred barb | Barbus fasciolatus |
| African bonytongue, African arowana, Nile arowana | Heterotis niloticus |
| African brown knifefish, African knifefish | Xenomystus nigri |
| African butter catfish, Butter fish, Butter barbel, African glass catfish | Schilbe mystus |
| African catfish, Eel-like fattyfin catfish | Heterobranchus bidorsalis |
| African grunt | Plectorhinchus gaterinus |
| African hind, Bluespotted sea bass, Spotted grouper | Cephalopholis taeniops |
| African jewelfish, Jewel Cichlid | Hemichromis bimaculatus |
| African lungfish, Tana lungfish | Protopterus annectens |
| African mottled eel, Indian longfin eel, Indian mottled eel | Anguilla bengalensis |
| African pike characin | Hepsetus odoe |
| African pompano, Threadfin | Alectis ciliaris |
| African red snapper, Guinean snapper, African cubera snapper | Lutianus agennes |
| African scraping feeder | Labeobarbus beso |
| African Sergeant | Abudefduf hoefleri |
| African sharptooth catfish | Clarias gariepinus |
| African sicklefish | Drepane africana |
| Agassiz' dwarf cichlid | Apistogramma agassizi |
| Ahl's killi | Aphyosemion ahli |
| Alaska pollock, Walleye pollock | Theragra chalcogramma |
| Alaskan Stickleback, Stickleback, Three-spined Stickleback | Gasterosteus aculeatus |
| Albacore fish, Albacore tuna, Albicore, Longfin, Albies, Pigfish, Tombo ahi, Binnaga, Pacific albacore | Thunnus alalunga |
| Alfonsino | Beryx splendens |
| Allis shad | Alosa alosa |
| Allison's Tuna, Autumn Albacore, Long Fin Tunny | Thunnus albacares |
| All-mouth, American anglerfish, Bellows-fish, Devil-fish, Headfish, Molligut, Satchel-mouth, Wide-gape | Lophius americanus |
| Amberjack, Amberfishes | Seriola sp. |
| Ambon chromis | Chromis amboinensis |
| Ambon scorpionfish | Pteroidichthys amboinensis |
| American eel | Anguilla rostrata |
| American paddlefish, Mississippi paddlefish | Polyodon spathula |
| American plaice | Hippoglossoides platessoides |
| Amethyst anthias | Pseudanthias pascalus |
| Amu Darya | Pseudoscaphirhynchus kaufmanni |
| Amur bitterling | Rhodeus sericeus |
| Amur Catfish, Japanese common catfish | Parasilurus asotus |
| Amur chebak, Amur ide | Leuciscus waleckii |
| Angelfish, Freshwater angelfish, Lesser angelfish | Pterophyllum scalare |
| Anglerfish, Bullmouth | Lophius piscatorius |
| Angular roughshark | Oxynotus centrina |
| Antarctic armless flounder | Mancopsetta maculata |
| Antarctic horsefish | Zanclorhynchus spinifer |
| Antarctic lanternfish | Electrona antarctica |
| Antarctic toothfish | Dissostichus mawsoni |
| Arabian Angelfish | Pomacanthus asfur |
| Arabian butterflyfish, Blackfin butterflyfish, Black-finned melon butterflyfish | Chaetodon melapterus |
| Arabian monocle bream | Scolopsis ghanam |
| Aral barbel | Luciobarbus brachycephalus |
| Arapaïma | Arapaima gigas |
| Arc-eye hawkfish, Ringeye hawkfish, Horseshoe hawkfish, Whiteline hawkfish | Paracirrhites arcatus |
| Archerfish | Toxotes sp. |
| Archerfish, Riflefish | Toxotes jaculatrix |
| Arctic char | Salvelinus alpinus |
| Arctic grayling | Thymallus arcticus |
| Areolate grouper, Yellowspotted rockcod, Areolate rockcod, Green-spotted rock-cod, Squaretail grouper | Epinephelus areolatus |
| Argentine hake | Merluccius hubbsi |
| Argentinian silverside, Pejerrey | Odontesthes bonariensis |
| armored catfish | Callichthys callichthys |
| Arulius barb, Tamiraparani barb, Silas barb, Longfin barb | Dawkinsia arulius |
| Ascension wrasse | Thalassoma ascensionis |
| Asian bonytongue, Malayan bonytongue | Scleropages formosus |
| Asian Bumblebee Catfish, Bumblebee Catfish, Siamese Barred Catfish, Barred Leiocassis | Pseudomystus siamensis |
| Asian redtail catfish | Hemibagrus wyckioides |
| Asian snakeheads, Chinese Snakehead | Channa asiatica |
| Assasi triggerfish, Arabian picassofish | Rhinecanthus assasi |
| Atlantic Big-eye, Atlantic Bigeye, Balarton, Balatan, Big-eye | Priacanthus arenatus |
| Atlantic blue marlin, Blue marlin | Makaira nigricans |
| Atlantic bluefin tuna | Thunnus thynnus |
| Atlantic bonito | Sarda sarda |
| Atlantic chub mackerel, Bullseye hardhead | Scomber colias |
| Atlantic cod | Gadus morhua |
| Atlantic cod | Gadus morrhua |
| Atlantic creolefish, Creole-fish | Paranthias furcifer |
| Atlantic footballfish | Himantolophus groenlandicus |
| Atlantic guitarfish | Pseudobatos lentiginosus |
| Atlantic halibut | Hippoglossus hippoglossus |
| Atlantic herring, Baltic herring | Clupea harengus |
| Atlantic horse mackerel, European horse mackerel, Common scad | Trachurus trachurus |
| Atlantic mackerel | Scomber scombrus |
| Atlantic manta | Mobula birostris |
| Atlantic menhaden | Brevoortia tyrannus |
| Atlantic needlefish | Strongylura marina |
| Atlantic pollock, European pollock | Pollachius pollachius |
| Atlantic Sailfish | Istiophorus platypterus |
| Atlantic sailfish | Istiophorus albicans |
| Atlantic salmon | Salmo salar |
| Atlantic saury | Scomberesox saurus |
| Atlantic shadefish | Argyrosomus regius |
| Atlantic sharpnose shark | Rhizoprionodon terraenovae |
| Atlantic spadefish | Chaetodipterus faber |
| Atlantic Spanish mackerel, Spanish mackerel | Scomberomorus maculatus |
| Atlantic sturgeon | Acipenser oxyrinchus |
| Atlantic tarpon | Megalops atlanticus |
| Atlantic tripletail | Lobotes surinamensis |
| Atlantic trumpetfish | Aulostomus strigosus |
| Atlantic trumpetfish, West Atlantic trumpetfish | Aulostomus maculatus |
| Atlantic weasel shark | Paragaleus pectoralis |
| Atlantic whitefish | Coregonus huntsmani |
| Atlantic wolffish | Anarhichas lupus |
| Atlantic wreckfish | Polyprion americanus |
| Atoll butterflyfish, Yellowback butterflyfish, Merten's butterflyfish | Chaetodon mertensii |
| Australasian snapper, Silver Seabream, Golden Snapper, Old Man Snapper, Pink Snapper | Chrysophrys auratus |
| Australian blue-eye | Pseudomugil signifer |
| Australian bonito, Horse mackerel, Little bonito | Sarda australis |
| Australian bull ray, New Zealand eagle ray, Australian eagle ray | Myliobatis australis |
| Australian clownfish, Red anemonefish | Amphiprion rubrocinctus |
| Ayu, Sweetfish | Plecoglossus altivelis |
| Azurio tuskfish, Scarbreast tuskfin | Choerodon azurio |
| Bacalao grouper, Colorado grouper, Yellow grouper | Mycteroperca olfax |
| Bad Lucks, Golden Hamlet, Shy Hamlet | Hypoplectrus guttavarius |
| Bald notothen | Pagothenia borchgrevinki |
| Balkhash perch | Perca schrenkii |
| Ballyhoo halfbeak, Ballyhoo | Hemiramphus brasiliensis |
| Baltic herring | Clupea harengus |
| Banana Grunt, French Grunt, Gold Laced Grunt | Haemulon flavolineatum |
| Banded astyanax | Astyanax fasciatus |
| Banded bellowsfish | Centriscops humerosus |
| Banded butterflyfish | Chaetodon striatus |
| Banded ctenopoma | Ctenopoma fasciolatum |
| Banded distichodus, Six-banded distichodus, Sixbar distichodus | Distichodus sexfasciatus |
| Banded gourami, Striped gourami | Trichogaster fasciata |
| Banded jewelfish, Five-spot cichlid | Hemichromis fasciatus |
| Banded leporinus, Black-banded leporinus | Leporinus fasciatus |
| Banded needlefish | Strongylura leiura |
| Banded puffer, Parrot puffer, South American estuarine puffer | Colomesus psittacus |
| Banded seabream | Diplodus fasciatus |
| Banded sergeant | Abudefduf septemfasciatus |
| Bandit angelfish | Apolemichthys arcuatus |
| Bandtail puffer | Sphoeroides spengleri |
| Banggai cardinalfish | Pterapogon kauderni |
| Banner lyretail | Aphyosemion calliurum |
| Bannerfish, Coachman, Featherfin Bullfish | Heniochus acuminatus |
| Barbados Millions, Guppies, Guppy, Million Fish | Poecilia reticulata |
| Barbeled plunderfish | Histiodraco velifer |
| Barcheek unicornfish, Naso tang, Orange-spine unicornfish | Naso lituratus |
| Bargibant's seahorse | Hippocampus bargibanti |
| Barhead spinefoot, Doublebar rabbitfish, Doublebar spinefoot | Siganus uspi |
| Barracuda | Sphyraena sp. |
| Barred angelfish | Paracentropyge multifasciata |
| Barred blenny | Cirripectes polyzona |
| Barred cardinalfish | Apogon axillaris |
| Barred hamlet | Hypoplectrus puella |
| Barred marlin | Tetrapturus audax |
| Barred minnow | Opsaridium zambezense |
| Barred sorubim, Barred catfish | Pseudoplatystoma fasciatum |
| Barreleye | Macropinna microstoma |
| Barrier Reef anemonefish | Amphiprion akindynos |
| Basking shark | Cetorhinus maximus |
| Bastard Soldierfish, Big-eyed Squirrelfish | Myripristis jacobus |
| Bastard sturgeon, Fringebarbel sturgeon, Ship sturgeon, Spiny sturgeon, Thorn sturgeon | Acipenser nudiventris |
| Bat ray | Myliobatis californica |
| Batfish, Dusky Batfish, Long-finned Batfish | Platax pinnatus |
| Bayad | Bagrus bajad |
| Beaked leatherjacket | Oxymonacanthus longirostris |
| Beaked redfish, Deepwater redfin, Ocean perch, Atlantic redfish, Norway haddock, Red perch, Golden redfish, Hemdurganis | Sebastes mentella |
| Beau gregory, Beaugregory | Stegastes leucostictus |
| Beaubrummel | Stegastes flavilatus |
| Beaumaris Shark, Blue Dog | Lamna nasus |
| Belido | Chitala lopis |
| Belted cardinalfish | Apogon townsendi |
| Belted wrasse | Stethojulis balteata |
| Berthold's killi | Scriptaphyosemion bertholdi |
| Bib, Pout whiting, Pout, Pouting | Trisopterus luscus |
| Bicolor butterflyfish | Prognathodes dichrous |
| Bicolor damselfish | Stegastes partitus |
| Bicolour parrotfish, Bumphead parrotfish | Cetoscarus bicolor |
| Bigeye snapper, Bigeye seaperch, Red sea lined snapper, Golden striped snapper, Rosy snapper, Yellow snapper | Lutjanus lutjanus |
| Bigeye soldierfish, Popeye catalufa | Pristigenys serrula |
| Bigeye thresher | Alopias superciliosus |
| Bigeye trevally | Caranx sexfasciatus |
| Bigeye tuna | Thunnus obesus |
| Bigeye, Crescent Tail Bigeye, Duskyfin Bulleye | Priacanthus hamrur |
| Bighead carp | Hypophthalmichthys nobilis |
| Bighead searobin | Prionotus tribulus |
| Bignose unicornfish, Scibbled unicornfish, Vlaming's unicornfish, Zebra unicornfish | Naso vlamingii |
| Bigscale scorpionfish, Orange scorpionfish | Scorpaena scrofa |
| Bigspotted trigg | Balistoides conspicillum |
| Bird wrasse | Gomphosus varius |
| Blac Widow Tetra, Blackamoor | Gymnocorymbus ternetzi |
| Black and gold angelfish, Pacific rock beauty, Oriole angelfish, Oriole dwarf angel | Centropyge bicolor |
| Black and white damselfish | Dascyllus aruanus |
| Black anemonefish, Dusky anemonefish, Fire clownfish, Red and black anemonefish | Amphiprion melanopus |
| Black arawana | Osteoglossum ferreirai |
| Black bullhead, Black bullhead catfish | Ameiurus melas |
| Black clown, Brown anemonefish, Chocolate clownfish, Clark's anemonefish, Yellowtail clownfish | Amphiprion clarkii |
| Black jack, Black trevally, Black kingfish | Caranx lugubris |
| Black Long-nosed Butterflyfish | Forcipiger longirostris |
| Black marble hoplo, Spotted hoplo | Megalechis thoracata |
| Black margate, Mexican bull, Pompon, Spanish grunt | Anisotremus surinamensis |
| Black marlin | Istiompax indica |
| Black molly | Poecilia sphenops |
| Black mullet, Gray mullet, Flathead Mullet | Mugil cephalus |
| Black phantom tetra, Phantom tetra | Hyphessobrycon megalopterus |
| Black piranha, White piranha, Spotted piranha, Yellow piranha, Redeye piranha | Serrasalmus rhombeus |
| Black pomfret | Parastromateus niger |
| Black rockcod, Antarctic yellowbelly rockcod, Antarctic bullhead notothen | Notothenia coriiceps |
| Black scabbardfish | Aphanopus carbo |
| Black scorpionfish | Scorpaena porcus |
| Black seabream | Spondyliosoma cantharus |
| Black spinefoot | Siganus rivulatus |
| Black spot piranha | Pygocentrus cariba |
| Black talking catfish, Razorback catfish, Mother of snails catfish, Ripsaw catfish, Black doradid | Oxydoras niger |
| Black triggerfish | Melichthys niger |
| Blackback anemonefish, Fire clown, Oneband anemonefish, Red clown, Tomato clownfish | Amphiprion frenatus |
| Blackbacked butterflyfish | Chaetodon melannotus |
| Black-banded rainbowfish | Melanotaenia nigrans |
| Blackbanded sunfish | Enneacanthus chaetodon |
| Blackbellied angler | Lophius budegassa |
| Blackbelly dogfish, Caribbean lanternshark | Etmopterus hillianus |
| Blackbelly rosefish, Bluemouth rockfish, Bluemouth seaperch | Helicolenus dactylopterus |
| Blackbelly triggerfish | Rhinecanthus verrucosus |
| Black-blotched porcupinefish, Shortspine porcupinefish, Brown-backed porcupinefish | Diodon liturosus |
| Blackcap basslet | Gramma melacara |
| Blackchin guitarfish | Glaucostegus cemiculus |
| Blackclothed butterflyfish | Chaetodon ephippium |
| Black-dotted cod, Coral cod, Coral rockcod, Duskyfin grouper | Epinephelus corallicola |
| Black-dotted cod, Coral cod, Coral rockcod, Duskyfin grouper | Centropyge bispinosus |
| Blackedge moray | Gymnothorax nigromarginatus |
| Blackedged angelfish, Watanabe’s angelfish | Genicanthus watanabei |
| Blackfin barracuda, Chevron barracuda | Sphyraena qenie |
| Blackfin pearlfish | Cynopoecilus melanotaenia |
| Blackfin snapper | Lutjanus buccanella |
| Blackfin tuna, Bermuda tuna, Blackfinned albacore, Deep bodied tunny | Thunnus atlanticus |
| Blackfinned clownfish, Orange clown fish | Amphiprion percula |
| Blackfish | Tautoga onitis |
| Blackfoot cardinal | Apogon nigripes |
| Black-saddled Coral Trout | Plectropomus laevis |
| Blacksided Hawkfish, Forster's Hawk | Paracirrhites forsteri |
| Blackspot seabream, Red seabream | Pagellus bogaraveo |
| Blackspot shark | Carcharhinus sealei |
| Blackspot tuskfish | Choerodon schoenleinii |
| Black-spotted Rock-cod, Potato Cod, Potato Grouper | Epinephelus tukula |
| Blackspotted Wrasse, Guinea Fowl Wrasse, Guineafowl Wrasse, Leopard Wrasse, Reticulated Wrasse | Macropharyngodon meleagris |
| Blacktail angelfish, Red stripe angelfish, Orangelined angelfish, Eibl dwarf angel | Centropyge eibli |
| Blacktail humbug, Blacktailed humbug, Fourstripe damselfish | Dascyllus melanurus |
| Blacktail snapper, Flametail snapper, Redmargined seaperch, Waigeu snapper, Yellowmargined sea perch | Lutjanus fulvus |
| Black-tailed butterflyfish, Blacktail butterflyfish, Exquisite butterflyfish | Chaetodon austriacus |
| Blacktip grouper, Red-barred rockcod | Epinephelus fasciatus |
| Blacktip reef shark | Carcharhinus melanopterus |
| Blacktip shark | Carcharhinus limbatus |
| Blacktipped soldierfish | Myripristis murdjan |
| Blacktop catfish | Corydoras arcutus |
| Blackwedged butterflyfish | Chaetodon falcula |
| Bleeding heart tetra | Hyphessobrycon erythrostigma |
| Bleeker's parrotfish | Chlorurus bleekeri |
| Bloodfin | Aphyocharax anisitsi |
| Blood-red jewel cichlid | Hemichromis lifalili |
| Blotched snakehea | Channa maculata |
| Blotched upside-down catfish | Synodontis nigriventris |
| Blubberlip snapper, Maori snapper, Blue-spotted seaperch, Maori bream, Maori seaperch, Multi-coloured snapper, Scribbled snapper, Speckled snapper, Yellowfin snapper | Lutjanus rivulatus |
| Blue angelfish | Holacanthus bermudensis |
| Blue angelfish, Bermuda blue angelfis | Holacanthus isabelita |
| Blue blanquillo, Banded blanquillo, Striped blanquillo, False whiting | Malacanthus latovittatus |
| Blue chromis | Chromis cyanea |
| Blue gudgeon dartfish, Blue hana goby | Ptereleotris hanae |
| Blue gularis, Golden pheasant gularis, Red aphyosemion | Fundulopanchax sjostedti |
| Blue hamlet | Hypoplectrus gemma |
| Blue Mauritius angelfish | Centropyge debelius |
| Blue parrotfish | Scarus coeruleus |
| Blue ray, Blue pygmy skate | Neoraja caerulea |
| Blue rockcod, Bluegill notothen, Bluegill rockcod | Notothenia cyanobrancha |
| Blue runner | Caranx crysos |
| Blue shark | Prionace glauca |
| Blue skate, Common skate | Dipturus batis |
| Blue Surgeonfish, Blue Tang, Common Surgeon, Doctorfish | Paracanthurus hepatus |
| Blue tang | Acanthurus coeruleus |
| Blue tilapia, Blue kurper (South Africa) | Oreochromis aureus |
| Blue triggerfish, Rippled triggerfish, Yellow-spotted triggerfish, Blue-and-gold triggerfish | Pseudobalistes fuscus |
| Blue-and-yellow grouper | Epinephelus flavocaeruleus |
| Blueback salmon | Oncorhynchus nerka |
| Blue-banded goby, Catalina Goby | Lythrypnus dalli |
| Bluebanded sea perch, Blue-line snapper, Bluestripe snapper, Bluestripe sea perch | Lutjanus kasmira |
| Blueblotched butterflyfish | Chaetodon plebeius |
| Bluecheek butterflyfish | Chaetodon semilarvatus |
| Bluechin parrotfish, Flame parrotfish | Scarus ghobban |
| Bluedotted coraltrout, Leopard coralgrouper | Plectropomus leopardus |
| Bluefaced angelfish, Yellowfaced angelfish | Pomacanthus xanthometopon |
| Bluefin filefish | Balistoides viridescens |
| Bluefin gurnard, Pacific red gurnard | Chelidonichthys kumu |
| Bluefin notho | Nothobranchius rachovi |
| Bluefin trevally | Caranx melampygus |
| Bluefinned ghost pipefish, Green ghost pipefish | Solenostomus cyanopterus |
| bluefish, Tailor (Australia e Nuova Zelanda), Elf e Shad (Sud Africa) | Pomatomus saltatrix |
| Bluegill | Lepomis macrochirus |
| Bluegirdled angelfish | Pomacanthus navarchus |
| Blue-green chromis, Green chromis | Chromis viridis |
| Bluehead, Bluehead wrasse, Blue-headed wrasse | Thalassoma bifasciatum |
| Bluelashed butterflyfish, Eclipse butterflyfish | Chaetodon bennetti |
| Blue-lined seabream, Sailfin snapper | Symphorichthys spilurus |
| Bluelined spinefoot | Siganus virgatus |
| Bluelip haplo | Astatoreochromis straeleni |
| Bluenose warehou, Antarctic butterfish | Hyperoglyphe antarctica |
| Bluering angelfish | Pomacanthus annularis |
| Bluespine unicornfish, Short-nose unicornfish | Naso unicornis |
| Bluespot mullet | Crenimugil seheli |
| Bluespot rockcod, Coral hind, Vermilion seabass | Cephalopholis miniata |
| Blue-spotted Boxfish, Whitespotted Boxfish | Ostracion meleagris |
| Bluespotted ribbontail ray | Taeniura lymma |
| Blue-spotted spinefoot, Coral rabbitfish, Coral spinefoot, Ocellated spinefoot, Orange spinefoot | Siganus corallinus |
| Bluestriped angelfish, Bluelined angelfish | Chaetodontoplus septentrionalis |
| Bluestriped butterflyfish | Chaetodon fremblii |
| Bluestriped Grunt, Boar Grunt | Haemulon sciurus |
| Bluetail Trunkfish | Ostracion cyanurus |
| Blunt scalyhead | Trematomus eulepidotus |
| Blunthead cichlid | Tropheus moorii |
| Bluntnose minnows | Pimephales sp. |
| Bluntnose sixgill shark | Hexanchus griseus |
| Boarfish | Capros aper |
| Boesemani rainbowfish, Boeseman's rainbowfish | Melanotaenia boesemani |
| Bonefish | Albula vulpes |
| Boomerang Triggerfish | Sufflamen bursa |
| Bowmouth guitarfish, Shark ray, Mud skate | Rhina ancylostoma |
| Bowtie damselfish, Black damsel, Bluefin, Ryal damsel | Neoglyphidodon melas |
| Box Puffer | Ostracion sp. |
| Brassy trevally | Caranx papuensis |
| Brazilian electric ray, Lesser numbfish | Narcine brasiliensis |
| Bream, Carribbean Red Snappe, Mexican Red Snappe, Mutton Snapper
Northern Red Snapper
Pensacola Red Snapper
Red Snapper | Lutjanus campechanus |
| Bridled burrfish | Chilomycterus antennatus |
| Bridled parrotfish, Six-banded parrotfish, Vermiculate parrotfish | Scarus frenatus |
| Britski's catfish | Corydoras britskii |
| Broadbanded moray, Banded moray, Banded creeping eel, Chinese moray, Double-ended moray, Long-jawed moray, Strange moray | Channomuraena vittata |
| Broadbanded velvetchin | Hapalogenys mucronatus |
| Broadbarred firefish, Spotfin lionfish | Pterois antennata |
| Broadhead catfish | Clariallabes platyprosopos |
| Broadnose chimaera , Knifenose chimaera , Spearnose chimaera , Straightnose rabbitfish | Rhinochimaera atlantica |
| Broadnose sevengill shark | Notorhynchus cepedianus |
| Broadnose sevengill shark | Notorynchus cepedianus |
| Broadnosed pipefish, Deepnosed pipefish | Syngnathus typhle |
| Brocaded carp | Cyprinus rubrofuscus koi |
| Bronze corydoras | Corydoras aeneus |
| Bronze featherback | Notopterus notopterus |
| Bronze seabream | Pachymetopon grande |
| Brook trout | Salvelinus fontinalis |
| Broomtail wrasse | Cheilinus lunulatus |
| Brown chromis | Chromis multilineata |
| Brown clownfish, Sebae clown, Yellowtail clownfish, Yellowtailed anemonefish | Amphiprion sebae |
| Brown hoplo | Hoplosternum littorale |
| Brown meagre | Sciaena umbra |
| Brown moray eel | Gymnothorax unicolor |
| Brown squeaker, Korokoro, Plain squeaker | Synodontis zambezensis |
| Brown-and-white butterflyfish, Black pyramid butterflyfish, Zoster butterflyfish, Brushtooth butterflyfish | Hemitaurichthys zoster |
| Brownsaddle clownfish, Saddleback clownfish, Yellowfinned anemonefish | Amphiprion polymnus |
| Brushtooth lizardfish, Large-scale grinner, Largescale saury | Saurida undosquamis |
| Bucktooth tetra | Exodon paradoxus |
| Buenos Aires Tetra, Diamond Spot Characin | Hyphessobrycon anisitsi |
| Buffalo trunkfish, Trunkfish | Lactophrys trigonus |
| Bull shark, Zambezi shark | Carcharhinus leucas |
| Bullhead sharks | Heterodontus sp. |
| Bumphead parrotfish | Scarus perrico |
| Bumphead parrotfish, Humphead parrotfish, Double-headed parrotfish | Bolbometopon muricatum |
| Bushymouth catfish | Ancistrus dolichopterus |
| Bushynose, Bristlenose catfish | Ancistrus sp. |
| Butter catfishes | Schilbe sp. |
| Butter hamlet, Yellowtail hamlet | Hypoplectrus unicolor |
| Butterfly peacock bass, Peacock cichlid | Cichla ocellaris |
| Butterflyfishe | Chaetodon sp. |
| Cachema weakfish | Cynoscion phoxocephalus |
| Camouflage grouper | Epinephelus polyphekadion |
| Canary Demoiselle | Chrysiptera galba |
| Candy basslet | Liopropoma carmabi |
| Captain Plexiglass, Guinean Threadfi, Lesser African Threadfin | Galeoides decadactylus |
| Cardinal tetra, Red neon | Paracheirodon axelrodi |
| Caribbean reef shark | Carcharhinus perezi |
| Caribbean roughshark | Oxynotus caribbaeus |
| Caribbean sharpnose shark | Rhizoprionodon porosus |
| Carnegiella, Pesce accetta rigato | Carnegiella strigata |
| Caspian anadromous shad, Black-spined herring, Blackback, Blacknose, Blackspine herring | Alosa kessleri |
| Cero, Cero mackerel, Cerite, Painted mackerel | Scomberomorus regalis |
| Cerulean damselfish | Pomacentrus caeruleus |
| Chagos anemonefish | Amphiprion chagosensis |
| Chain moray | Echidna catenata |
| Chairel cichlid | Nosferatu pantostictus |
| Chameleon cichlid | Australoheros facetus |
| Chao Phraya giant catfish, Giant pangasius, Paroon shark, Pangasid-catfish | Pangasius sanitwongsei |
| Char, Charr | Salvelinus sp. |
| Cheek-lined wrasse | Oxycheilinus digramma |
| Cherry salmon | Oncorhynchus masou |
| Chessa | Distichodus schenga |
| Chilean sandperch | Pinguipes chilensis |
| Chinese algae-eater | Gyrinocheilus aymonieri |
| Chinese brill | Tephrinectes sinensis |
| Chinese Fighting Fish, Forktail Fightingfish, Paradise Fish | Macropodus opercularis |
| Chinese lantern, Harlequin cod, Harlequin rock cod, Tiger cod, Harlequin fish | Othos dentex |
| Chinese paddlefish | †Psephurus gladius |
| Chinese pomfret | Pampus chinensis |
| Chinese sturgeon, Sagami sturgeon | Acipenser sinensis |
| Chinook Salmon, King Salmon, Quinnat, Spring Salmon | Oncorhynchus tshawytscha |
| Christmas wrasse, Ladder wrasse, Green-barred wrasse, Green-blocked wrasse | Thalassoma trilobatum |
| Chromis di Cadenat | Chromis cadenati |
| Chub mackerel, Pacific chub mackerel, Pacific mackerel, Common mackerel | Scomber japonicus |
| Chum salmon, Dog salmon, Keta salmon, Silverbrite salmon | Oncorhynchus keta |
| Chupare stingray, Caribbean whiptail stingray | Styracura schmardae |
| Circular Batfish, Circular Spadefish | Platax orbicularis |
| Cleaner fish | Labroides dimidiatus |
| Clearfin turkeyfish, Radial firefish, Whitefin lionfish | Pterois radiata |
| Climbing bass, Climbing perch | Anabas testudineus |
| Clouded rainbowfish | Halichoeres nebulosus |
| Clown anemonefish, Common clownfish | Amphiprion ocellaris |
| Clown coris, Clown wrasse, False clownwrasse, Humphead wrasse, Hump-headed wrasse, Red-blotched rainbowfish, Twinspot wrasse | Coris aygula |
| Clown featherback, Clown knifefish, Spotted knifefish | Chitala ornata |
| Clown killi, Banded panchax | Epiplatys annulatus |
| Clown loach, Tiger botia | Chromobotia macracanthus |
| Clown rasbora | Rasbora kalochroma |
| Clown Sweetlips, Grunt, Harlequin Sweetlip | Plectorhinchus chaetodonoides |
| Clown wrasse, Rockmover wrasse, Olive-scribbled wrasse, Reindeer wrasse | Novaculichthys taeniourus |
| Clown Wrasse, Slippery Okra | Halichoeres maculipinna |
| Clownfish | Amphiprion sp. |
| Coalfish, Boston blue, Saithe | Pollachius virens |
| Cobia | Rachycentron canadum |
| Cockatoo dwarf cichlid | Apistogramma cacatuoides |
| Cockatoo righteye flounder | Samaris cristatus |
| Cocoa damselfish | Stegastes variabilis |
| Cod, Codfish, Goodo, Mary River Cod, Murray Cod, Murray Perch, Ponde | Maccullochella peelii |
| Coelacanth, Gombessa | Latimeria chalumnae |
| Cola, Yellowtail, Yellowtail Snapper | Ocyurus chrysurus |
| Colin's angelfish, Cocos-Keeling angelfish | Centropyge colini |
| Comber | Serranus cabrilla |
| Comet grouper, Comet cod, Dot-dash grouper, | Epinephelus morrhua |
| Commerson's frogfish | Antennarius commerson |
| Common Bellowsfish, Longspine Snipefish | Macroramphosus scolopax |
| Common Bream | Abramis brama |
| Common dab | Limanda limanda |
| Common dentex | Dentex dentex |
| Common fangtooth | Anoplogaster cornuta |
| Common goby | Pomatoschistus microps |
| Common hatchetfish | Gasteropelecus sternicla |
| Common nase | Chondrostoma nasus |
| Common parrotfish, palenose parrotfish, Batavian parrotfish, Rosy-cheek parrotfish | Scarus psittacus |
| Common Perch, Eurasian Perch, European Perch, Perch, Redfin, River Perch | Perca fluviatilis |
| Common roach | Rutilus rutilus |
| Common rudd | Scardinius erythrophthalmus |
| Common Sawfish, Largetooth Sawfish | Pristis pristis |
| Common seahorse, Estuary seahorse, Yellow seahorse, Spotted seahorse | Hippocampus kuda |
| Common Silver Biddy, Black-tip silverbelly | Gerres oyena |
| Common smooth-hound | Mustelus mustelus |
| Common snook | Centropomus undecimalis |
| Common sole | Solea solea |
| Common Squirrelfish, Cook, Hardback Soldier, Longjaw Squirrelfish | Holocentrus adscensionis |
| Common stingray , Blue stingray | Dasyatis pastinaca |
| Common two-banded sea bream | Diplodus vulgaris |
| Compressed toby, Fingerprint toby | Canthigaster compressa |
| Coney, Butterfish | Cephalopholis fulva |
| Congo tetra | Phenacogrammus interruptus |
| Conspicuous angelfish, Spectacled angelfish | Chaetodontoplus conspicillatus |
| Convict cichlid | Amatitlania nigrofasciata |
| Convict cichlid, Zebra cichlid | Archocentrus nigrofasciatus |
| Convict surgeonfish, Convict tang, Convictfish | Acanthurus triostegus |
| Copper shark, Bronze whaler, Narrowtooth shark | Carcharhinus brachyurus |
| Coral hawkfish | Cirrhitichthys oxycephalus |
| Corb | Umbrina cirrosa |
| Coronation trout | Variola louti |
| Cortez angelfish | Pomacanthus zonipectus |
| Cortez rainbow wrasse | Thalassoma lucasanum |
| Couch's whiting | Micromesistius poutassou |
| Cowtail stingray | Pastinachus sephen |
| Creole Perch, Smallmouth Perch | Percichthys trucha |
| Creole wrasse | Clepticus parrae |
| Crested bigscale, Large-headed midnight fish, Crested melamphid, One-horned melamphaid | Poromitra crassiceps |
| Crevalle jack | Caranx hippos |
| Crimson jobfish, Rosy snapper, Bluespot jobfish, Crimson snapper, King emperor, King snapper, Rosy jobfish | Pristipomoides filamentosus |
| Crimson snapper, Crimson seaperch, High-brow sea-perch, Longman's sea perch, Red bream, Saddle-tailed perch, Small-mouth nannygai, Smallmouth sea perch | Lutjanus erythropterus |
| Crocodile icefishes | Pagetopsis maculata |
| Crossback stingaree, Banded stingaree | Urolophus cruciatus |
| Crown toby, Crowned pufferfish | Canthigaster coronata |
| Crowned soldierfish | Sargocentron diadema |
| Crucian carp | Carassius carassius |
| Cuban gambusia | Gambusia punctata |
| Cuban gar | Atractosteus tristoechus |
| Cuckoo catfish, Cuckoo squeaker, Multipunk | Synodontis multipunctatus |
| Cuckoo catfish, Pygmy leopard catfish | Synodontis petricola |
| Cuckoo Wrasse | Labrus mixtus |
| Cuckoo wrasse | Cichlasoma bimaculatum |
| Cusk | Brosme brosme |
| Dabry's sturgeon, Yangtze sturgeon | Acipenser dabryanus |
| Daisy parrotfish, Bullethead parrotfis | Chlorurus sordidus |
| Dalmatian barbelgudgeon | Aulopyge huegelii |
| Dana viperfish | Chauliodus danae |
| Danio margaritatus | Danio margaritatus |
| Danube salmon | Hucho hucho |
| Danube streber | Zingel streber |
| Danubian longbarbel gudgeon | Romanogobio uranoscopus |
| Dark-banded fusilier | Pterocaesio tile |
| Darkfin hind, Flagtail rockcod, Chevron rockcod, Duskyfin hind, Duskyfin rockcod | Cephalopholis urodeta |
| Darkmargin Flagtail, Orange-finned Flagtail | Kuhlia marginata |
| Deepwater longtail red snapper | Etelis coruscans |
| Deep-water red snapper, Ruby snapper, Longtail snapper | Etelis carbunculus |
| Devil firefish, Common lionfish | Pterois miles |
| Devil fish | Mobula mobular |
| Diagonal butterflyfish, Red Sea raccoon butterflyfish | Chaetodon fasciatus |
| Diamond blenny | Malacoctenus boehlkei |
| Diamond moonfish, Silver angelfish, Butter bream | Monodactylus argenteus |
| Diptail pencilfish, Brown pencilfish | Nannostomus eques |
| Doctorfish | Acanthurus chirurgus |
| Dog snapper | Lutjanus jocu |
| Dogtooth Snapper, Schoolmaster, Schoolmaster Snapper, Schooly | Lutjanus apodus |
| Dogtooth tuna, Scaleless tuna | Gymnosarda unicolor |
| Domino damselfish, Threespot dascyllus, Threespot humbug, Whitespot humbug | Dascyllus trimaculatus |
| Donets ruffe | Gymnocephalus acerina |
| Dot and dash butterflyfish, Spotbanded butterflyfish, Punctato butterflyfish | Chaetodon pelewensis |
| Doublespotted queenfish | Scomberoides lysan |
| Dungat grouper | Epinephelus goreensis |
| Dusky damselfish | Stegastes adustus |
| Dusky grouper | Epinephelus marginatus |
| Dusky millions fish, Speckled mosquitofish, One-spot livebearer | Phallocerus caudimaculatus |
| Dusky parrotfish | Scarus niger |
| Dusky shark | Carcharhinus obscurus |
| Dussumier's surgeonfish, Eye-stripe surgeonfish, Ornate surgeonfish | Acanthurus dussumieri |
| Dwarf gourami | Trichogaster lalius |
| Dwarf gourami | Colisa lalia |
| Dwarf hawkfish | Cirrhitichthys falco |
| Dwarf pygmy goby, Philippine goby | Pandaka pygmaea |
| Dwarf seahorse | Hippocampus zosterae |
| Dwarf whipray, Mangrove whipray | Brevitrygon walga |
| East Atlantic African spadefish | Ephippus goreensis |
| Eastern fiddler ray, Banjo shark, Fiddler ray, Fiddler, Green skate, Magpie fiddler ray, Parrit, Southern fiddler ray, Southern fiddler | Trygonorhina fasciata |
| Eastern nannygai, Bight redfish, Red snapper | Centroberyx affinis |
| Eastern Pacific bonito | Sarda chiliensis |
| Eaton's skate | Bathyraja eatonii |
| Eelpout, Burbot | Lota lota |
| Egyptian mouthbrooder | Pseudocrenilabrus multicolor |
| Electric catfish | Malapterurus electricus |
| Electric eel | Electrophorus electricus |
| Electric rays | Tetronarce sp. |
| Elegant firefish | Nematelestris decora |
| Elegant firefish, Purple firefish | Nemateleotris decora |
| Elegant wrasse | Anampses elegans |
| Elephantnose fish, Peter's elephantnose, Ubangi mormyrid | Gnatonemus petersii |
| Elephant-trunk mormyrid | Campylomormyrus elephas |
| Elongate mbuna | Chindongo elongatus |
| Elongate tigerfish | Hydrocyon forskahlii |
| Elongate tigerfish, | Hydrocynus forskahlii |
| Ember parrotfish, Bicolor parrotfish, Redlip parrotfish | Scarus rubroviolaceus |
| Emerald green betta, Blue betta, Mekong fighting fish | Betta smaragdina |
| Emerald notothen, Emerald rockcod | Trematomus bernacchii |
| Emperor Angelfish | Pomacanthus imperator |
| Emperor cichlid | Aulonocara nyassae |
| Emperor cichlid, Giant cichlid | Boulengerochromis microlepis |
| Eritrean butterflyfish, Crown butterflyfish | Chaetodon paucifasciatus |
| Estuarine perch, Sea pikeperch, Sea zander, | Sander marinus |
| Euphrates spiny eel | Mastacembelus mastacembelus |
| Eurasian minnow | Phoxinus phoxinus |
| European anchovy | Engraulis encrasicolus |
| European bass | Dicentrarchus labrax |
| European Bitterling | Rhodeus amarus |
| European carp, Common carpe | Cyprinus carpio |
| European Chub | Squalius cephalus |
| European conger | Conger conger |
| European eel | Anguilla anguilla |
| European grayling | Thymallus thymallus |
| European hake | Merluccius merluccius |
| European mudminnow | Umbra krameri |
| European pilchard | Sardina pilchardus |
| European plaice | Pleuronectes platessa |
| European sea sturgeon, Atlantic sturgeon, Common sturgeon, Baltic sturgeon | Acipenser sturio |
| European sturgeon | Huso huso |
| Eyed electric r | Torpedo torpedo |
| Fairy Basslet, Royal Gramma | Gramma loreto |
| False albacore | Euthynnus alletteratus |
| False Boarfish | Neocyttus helgae |
| False cleanerfish | Aspidontus taeniatus |
| False jacopever, Cape redfish | Sebastes capensis |
| False skunkstriped anemonefish, Pink anemonefish, Pink skunk clown, Salmon clownfish, Whitebanded anemonefish | Amphiprion perideraion |
| Fat greenling | Hexagrammos otakii |
| Fat puffers, Blackspotted puffer, Dog-faced puffer | Arothron nigropunctatus |
| Figure 8 puffer, Eyespot puffer | Tetraodon biocellatus |
| Filament barb | Dawkinsia filamentosa |
| Fine-lined squirrelfish, Slender squirrelfish, Smallmouth squirrelfish | Sargocentron microstoma |
| Fire Goby, Fire Fish, Fire Dartfish, Red Fire Goby | Nemateleotris magnifica |
| Firefish, Lionfish, Ornate butterfly-cod, Red firefish, Red lionfish, Turkeyfish, Zebrafish | Pterois volitans |
| Firemouth cichlid | Thorichthys meeki |
| Fischer's Victoria squeaker, Marbled Victoria squeaker, Fischer's catfish, Victoria synodontis | Synodontis afrofischeri |
| Fivebanded wrasse | Hemigymnus fasciatus |
| Flag acara, Dwarf flag cichlid | Laetacara curviceps |
| Flag cabrilla, Lateralband grouper, Starry grouper | Epinephelus labriformis |
| Flame anthias, Flame basslet | Pseudanthias ignitus |
| Flame tetra, Red tetra, Rio tetra | Hyphessobrycon flammeus |
| Flameback angelfish, Flameback pygmy angelfish, Brazilian flameback angelfish, Caribbean flameback angelfish, Fireball angelfish | Centropyge aurantonotus |
| Flamefish | Apogon maculatus |
| Florida pompano | Trachinotus carolinus |
| Flower cardinalfish, Gold cardinalfish, Bullseye cardinalfish, Cardinalfish, Ring-tail cardinalfish, Ringtailed cardinalfish | Ostorhinus fleurieu |
| Fluke, Summer flounder | Paralichthys dentatus |
| Flying gurnard | Dactylopterus volitans |
| Footballer demoiselle | Chrysiptera annulata |
| Four-banded butterflyfish | Chaetodon hoefleri |
| Foureye butterflyfish | Chaetodon capistratus |
| Four-eyed fish | Anableps anableps |
| Fourhorn sculpin | Myoxocephalus quadricornis |
| Four-line wrasse | Larabicus quadrilineatus |
| Foursaddle grouper, spotty cod | Epinephelus spilotoceps |
| Four-spotted butterflyfish, Fourspot butterflyfish | Chaetodon quadrimaculatus |
| Fourwing flyingfish | Hirundichthys affinis |
| Foxface, Black-face rabbitfish, Common foxface | Siganus vulpinus |
| Freckled rockcod, Sixblotch hind, Sixband cod, Six-banded rockcod | Cephalopholis sexmaculata |
| Freiberg's peacock, Fairy cichlid | Austrolebias viarius |
| French angelfish | Pomacanthus paru |
| Freshwater eels | Anguilla sp. |
| Fridman's Dottyback | Pseudochromis fridmani |
| Frigate tuna, Frigate mackerel, Alagaduwa | Auxis thazard |
| Front Cichlid | Cyphotilapia frontosa |
| Fueguian sprat, Falkland sprat | Sprattus fuegensis |
| Futuna's emperor | Akihito futuna |
| Gafftopsail sea catfish | Bagre marinus |
| Galapagos shark | Carcharhinus galapagensis |
| Galjoen, Black bream, Blackfish | Dichistius capensis |
| Gangetic leaffish | Nandus nandus |
| Gardiner's butterflyfish | Chaetodon gardineri |
| Garfish, Halfbeak, New Zealand Garfish | Hyporhamphus ihi |
| Garfish, Sea needle | Belone belone |
| Garibaldi, Garibaldi damselfish | Hypsypops rubicundus |
| Geometric moray | Gymnothorax griseus |
| Ggiraffe synodontis | Synodontis camelopardalis |
| Giant barb, Siamese giant carp,Siamese carp | Catlocarpio siamensis |
| Giant devil catfish, Goonch | Bagarius yarrelli |
| Giant gouramis | Osphronemus goramy |
| Giant hatchetfish, Greater silver hatchetfish | Argyropelecus gigas |
| Giant hawkfish, Hieroglyphic hawkfish | Cirrhitus rivulatus |
| Giant moray | Gymnothorax javanicus |
| Giant Oarfish, King of herrings | Regalecus glesne |
| Giant perch | Lates calcarifer |
| Giant river-catfish | Sperata seenghala |
| Giant Seahorse, Pacific Giant Seahorse | Hippocampus ingens |
| Giant snakehead, Red snakehead | Channa micropeltes |
| Giant Sweetlips, Giant Thicklip, Indian Grunt, Two-stripe Sweetlips | Plectorhinchus albovittatus |
| Giant trevally | Caranx ignobilis |
| Gibberfishes | Gibberichthys pumilus |
| Gila Trout, Salmon | Oncorhynchus gilae |
| Gilded triggerfish, Blue-throated triggerfish | Xanthichthys auromarginatus |
| Gilled lungfish, East African lungfish | Protopterus amphibius |
| Gilt-head bream | Sparus aurata |
| Giraffe catfish | Auchenoglanis occidentalis |
| Glacefish, Gudlax, Jerusalem Haddock | Lampris guttatus |
| Glasseye snapper | Heteropriacanthus cruentatus |
| Glassy sweeper | Pempheris schomburgkii |
| Glider flyingfish | Cheilopogon atrisignis |
| Goblin shark | Mitsukurina owstoni |
| Gokcha barbel | Barbus goktschaicus |
| Goldbar wrasse | Thalassoma hebraicum |
| Golden damselfish, Golden devil | Amblyglyphidodon aureus |
| Golden Dorado | Salminus brasiliensis |
| Golden grey mulllet | Liza aurata |
| Golden hamlet | Hypoplectrus gummigutta |
| Golden panchax | Pachypanchax playfairii |
| Golden pencilfish, Beckford's pencil fish | Nannostomus beckfordi |
| Golden perch | Macquaria ambigua |
| Golden threadfin bream | Nemipterus virgatus |
| Golden trevally, Golden kingfish, Banded trevally, King trevally | Gnathanodon speciosus |
| Golden-eyed broad head', Red roman, Roman seabream | Chrysoblephus laticeps |
| Goldentail moray, Conger moray | Gymnothorax miliaris |
| Goldfish | Carassius auratus |
| Gold-saddle goatfish, Blue goatfish, Yellowsaddle goatfish | Parupeneus cyclostomus |
| Gold-spotted rabbitfish | Siganus punctatus |
| Goldspotted snake eel, Dark-spotted snake eel | Myrichthys oculatus |
| Goldtail angelfish | Pomacanthus chrysurus |
| Goliath grouper, Jewfish | Epinephelus itajara |
| Goliath tigerfish, Giant tigerfish | Hydrocynus goliath |
| Gorean Snapper, Grouper, Pink Snapper | Lutjanus goreensis |
| Grand brochet, Northern pike | Esox lucius |
| Grant's peacock | Aulonocara stuartgranti |
| Grass carp | Ctenopharyngodon idella |
| Grass puffer, Kusa-fugu | Takifugu niphobles |
| Gray angelfish | Pomacanthus arcuatus |
| Gray shark, Greenland shark, Ground shark, Gurry shark, Sleeper shark | Somniosus microcephalus |
| Gray triggerfish | Balistes capriscus |
| Greasy grouper | Epinephelus tauvina |
| Great barracuda | Sphyraena barracuda |
| Great hammerhead | Sphyrna mokarran |
| Great seahorse | Hippocampus kelloggi |
| Great white shark | Carcharodon carcharias |
| Greater amberjack, Allied kingfish, Great amberfish, Greater yellowtail, Jenny lind, Purplish amberjack, Reef donkey, Rock salmon, Sailors choice, Yellowtail, Yellow trevally | Seriola dumerili |
| Greater hatchetfish, Giant hatchetfish | Thoracocharax securis |
| Greater weever | Trachinus draco |
| Green birdmouth wrasse | Gomphosus caeruleus |
| Green chromide | Etroplus suratensis |
| Green discus | Symphysodon aequifasciatus |
| Green jack | Carangoides bartholomaei |
| Green moray | Gymnothorax funebris |
| Green pufferfish, Ceylon pufferfish | Tetraodon fluviatilis |
| Green Swordtail | Xiphophorus hellerii |
| Greenback mullet | Planiliza subviridis |
| Greenland halibut | Reinhardtius hippoglossoides |
| Grey damselfish | Chrysiptera glauca |
| Grey notothen, Stripe-eyes notothen, Stripe-eyed rockcod | Lepidonotothen squamifrons |
| Grey reef shark | Carcharhinus wheeleri |
| Grey reef shark | Carcharhinus amblyrhynchos |
| Grey stingfish, Grey goblinfish | Minous monodactylus |
| Grey wrasse | Symphodus cinereus |
| Groundling, Stone Loach, Bearded Stone Loach, European Stone Loach | Barbatula barbatula |
| Grunt, Oriental Sweetlips, Sweetlips, Indian Ocean oriental sweetlips | Plectorhinchus orientalis |
| Guachanche barracuda | Sphyraena guachancho |
| Gudgeon | Gobio gobio |
| Guineafowl puffer | Arothron meleagris |
| Guinean angelfish, West African angelfish | Holacanthus africanus |
| Guinean parrotfish | Scarus hoefleri |
| Günther's mouthbrooder | Chromidotilapia guntheri |
| Haddock | Melanogrammus aeglefinus |
| Hairy porcupinefish | Diodon holocanthus |
| Half-and-half Thicklip, Blackedge Thicklip Wrasse | Hemigymnus melapterus |
| Hammerhead shark | Sphyrma sp. |
| Hammerhead shark | Sphyrna sp. |
| Hampala barb | Hampala macrolepidota |
| Hardhead catfish | Ariopsis felis |
| Harlequin bass | Serranus scriba |
| Harlequin bass | Serranus tigrinus |
| Harlequin sweetlips, Clown sweetlips, Spotted sweetlips, Many-spotted sweetlips | Plectorhincus chaetodonoides |
| Harlequin tuskfish | Choerodon fasciatus |
| Head-and-taillight tetra, Beacon fish, Beacon tetra, Head-and-taillight tetra | Hemigrammus ocellifer |
| Headstander, Picúo, Sardina | Abramites eques |
| Heavybeak parrotfish, Gibbus parrotfish, Red Sea steephead parrotfish | Chlorurus gibbus |
| Helicopter catfish, Wallago catfish | Wallago attu |
| Herringbone butterflyfish | Chaetodon triangulum |
| Highfin grouper, Blackfin cod, Brown-spotted rock-cod, Marbled rock-cod, Spotted grouper | Epinephelus maculatus |
| Highfin Parrotfish | Scarus longipinnis |
| Highfinned blenny | Petroscirtes mitratus |
| High-hat, Cubbyu, Streaked ribbonfish, Striped drum | Pareques acuminatus |
| Hogfish | Lachnolaimus maximus |
| Honey gourami | Trichogaster chuna |
| Honeycomb cowfish | Acanthostracion polygonius |
| Honeycomb grouper, Honeycomb rockcod, Black-spotted rock-cod, Common birdwire rockcod, Dwarf spotted rockcod, Dwarf-spotted grouper | Epinephelus merra |
| Honeycomb stingray | Dasyatis uarnak |
| Hong Kong grouper | Epinephelus akaara |
| Hooded butterflyfish, Orangeface butterflyfish | Chaetodon larvatus |
| Hooktooth shark | Chaenogaleus macrostoma |
| Horned bannerfish, Humphead bannerfish | Heniochus varius |
| Horned coachman | Heniochus monoceros |
| Horse-eye jack, Big-eye jack | Caranx latus |
| Horsefaced loach, Banana fish, Longnose loach | Acantopsis dialuzona |
| Horsefish, Lined Seahorse, Northern Seahorse, Sea Horse | Hippocampus erectus |
| Hoshigarei, Spotted halibut | Verasper variegatus |
| Houndfish, Crocodile needlefish | Tylosurus crocodilus |
| Humpback anglerfish, Anglerfish, Viperfish, Fangtoothfish | Melanocetus johnsonii |
| humpback grouper, Panther grouper, Barramundi cod (in Australia) | Cromileptes altivelis |
| Humpback grouper, Panther grouper, Barramundi cod (in Australia) | Chromileptes altivelis |
| Humpback red snapper, Paddletail, Paddletail snapper | Lutjanus gibbus |
| Humpbacked scorpionfish | Scorpaenopsis gibbosa |
| Humphead wrasse, Maori wrasse, Napoleon wrasse, Napoleon fish | Cheilinus undulatus |
| Hump-head, Hump-head cichlid, Blue dolphin cichlid, Malawi dolphin, Moorii | Cyrtocara moorii |
| Ikan temolek, Jullien's golden carp | Probarbus jullieni |
| Ili marinka | Schizothorax pseudoksaiensis |
| Ilish, Ilishi, Hilsa, Hhilsa herring, Hilsa shad | Tenualosa ilisha |
| Illuminated netdevil | Linophryne arborifera |
| Indian butterflyfish, Headband butterflyfish | Chaetodon mitratus |
| Indian carp | Gibelion catla |
| Indian featherback, Indian knifefish | Chitala chitala |
| Indian mackerel | Rastrelliger kanagurta |
| Indian Ocean oriental sweetlips | Plectorhinchus vittatus |
| Indian oil sardine | Sardinella longiceps |
| Indigo hamlet | Hypoplectrus indigo |
| Indonesian coelacanth | Latimeria menadoensis |
| Indonesian Shortfin Eel | Anguilla bicolor |
| Indonesian tiger datnoid, Indo datmoid, Indonesian tigerfish, Finescale tigerfish | Datnioides microlepis |
| Indo-Pacific blue marlin | Makaira mazara |
| Indo-Pacific sergeant, Sergeant major | Abudefduf vaigiensis |
| Indo-Pacific tarpon | Megalops cyprinoides |
| Island trevally, Island jack, Thicklip trevally, False bluefin trevally | Carangoides orthogrammus |
| Issyk-Kul dace | Leuciscus bergi |
| Jack Dempsey | Rocio octofasciata |
| Jack-knifefish | Equetus lanceolatus |
| Japan surgeonfish, White-faced surgeonfish, Gold rim tang, Powder brown tang, White-nose surgeonfish | Acanthurus japonicus |
| Japanese eagle ray, Cowhead eagle ray, Kkite ray | Myliobatis tobijei |
| Japanese eel | Anguilla japonica |
| Japanese flyingfish | Cheilopogon agoo |
| Japanese pineconefish | Monocentris japonica |
| Japanese pygmy angelfish, Flame angelfish | Centropyge loriculus |
| Japanese seahorse, Lemur-tail seahorse | Hippocampus mohnikei |
| Japanese Spanish mackerel, Japanese seer fish | Scomberomorus niphonius |
| Japanese swallow | Genicanthus semifasciatus |
| Japanese wobbegong | Orectolobus japonicus |
| Jarbua terapon, Crescent grunter, Crescent banded grunter, Crescent perch, Spiky trumpeter thornfish, Tiger perch | Terapon jarbua |
| Javelin grunter, Barred javelin | Pomadasys kaakan |
| Jayakar's seahorse | Hippocampus jayakari |
| Jewel cichlids | Hemichromis sp. |
| John Dory | Zeus faber |
| Johnstone Island dazmselfish | Plectroglyphidodon johnstonianus |
| Jolthead porgy | Calamus bajonado |
| Kaluga | Huso dauricus |
| Keeled needlefish | Platybelone argalus |
| Keletaona's Goby | Stenogobius keletaona |
| King angelfish, Passer angelfish | Holacanthus passer |
| King mackerel | Scomberomorus cavalla |
| King of the mullets, Cardinalfish | Apogon imberbis |
| King soldierbream, Bowen snapper, Frying-pan snapper, Frypan bream, | Argyrops spinifer |
| Kissing prochilodus, Flag-tailed prochilodus | Semaprochilodus insignis |
| Klunzinger's wrasse, Rüppell's wrasse | Thalassoma rueppellii |
| Knifetooth sawfish | Anoxypristis cuspidata |
| Korean rose bitterling | Rhodeus uyekii |
| Krøyer's deep sea angler fish | Ceratias holboelli |
| Kuria labeo | Labeo gonius |
| Lace goby | Oxyurichthys lemayi |
| Lace gourami, Mosaic gourami | Trichopodus leerii |
| Ladyfish, Tenpounder | Elops saurus |
| Lake minnow, Swamp minnow | Rhynchocypris percnurus |
| Lake Tebera rainbowfish | Melanotaenia herbertaxelrodi |
| Lake Wanam rainbowfish | Glossolepis wanamensis |
| Lampern, Lamprey, Lesser lamprey, River lamprey | Lampetra fluviatilis |
| Lane snapper | Lutjanus synagris |
| Largemouth bass | Micropterus salmoides |
| Largescaled terapon, Banded grunter, Banded trumpeter, Flagtail grunter | Terapon theraps |
| Largespot squeaker | Synodontis macrostigma |
| Latticed butterflyfish | Chaetodon rafflessii |
| Lavaret | Coregonus lavaretus |
| Lavender tang, Brown tang, Spot-cheeked surgeonfish | Acanthurus nigrofuscus |
| Leaf scorpionfish, Paperfish, Paper scorpionfish, Sailfin leafish, Threespine scorpionfish | Taenianotus triacanthus |
| Leafy seadragon, Glauert's seadragon | Phycodurus eques |
| Leaping mullet | Chelon saliens |
| Leaping mullet | Liza saliens |
| Leer fish, Garrick | Lichia amia |
| Lemon cichlid | Neolamprologus leleupi |
| Lemon shark | Negaprion brevirostris |
| lemon yellow lab, the blue streak hap, Electric yellow, Yellow prince | Labidochromis caeruleus |
| Leopard flounder, Panther flounder | Bothus pantherinus |
| Leopard moray eel, Tiger moray eel, Dragon moray | Enchelycore pardalis |
| Leopard puffer | Tetraodon schoutedeni |
| Leopard shark | Triakis semifasciata |
| Leopard-spotted goby | Thorogobius ephippiatus |
| Lesser pipefish, Nilsson's pipefish | Syngnathus rostellatus |
| Lined butterflyfish | Chaetodon lineolatus |
| Lined soapfish, Golden-striped bass, Radio fish, Sixline soapfish, Six-lined perch, White-lined rock cod | Grammistes sexlineatus |
| Lined surgeonfish, Blue banded surgeonfish, Blue-lined surgeonfish, Clown surgeonfish, Pyjama tang, Striped surgeonfish, Zebra surgeonfish | Acanthurus lineatus |
| Lionfish | Pterois sp. |
| Lombardoi mbuna, Kenyi mbuna, Kennyi mbuna, Kenyi cichlid | Maylandia lombardoi |
| Longcomb sawfish, Narrowsnout sawfish, Green sawfish | Pristis zijsron |
| Longear sunfish | Lepomis megalotis |
| Longfin anthias, Longfin basslet | Pseudanthias ventralis |
| Longfin damselfish | Stegastes diencaeus |
| Longfin dragonfish | Tactostoma macropus |
| Longfin killifish | Pterolebias longipinnis |
| Longfin mako shark | Isurus paucus |
| Longfin rockcod, Bar-breasted rock-cod, Gilbert's rock-cod, Honeycomb rockcod, Spotted groper | Epinephelus quoyanus |
| Longfin tilapia, Greenhead tilapia, Greenhead bream | Oreochromis macrochir |
| Longfin yellowtail, Almaco, Silvercoat jack, Deep-water, Falcate, European amberjack, Highfin amberjack, Rock salmon, Longfin, Yellow kingfish | Seriola rivoliana |
| Long-fingered icefish | Cryodraco antarcticus |
| Longhorn cowfish | Lactoria cornuta |
| Longjaw squirrelfish, Longspine squirrelfish | Neoniphon marianus |
| Longjawed wrasse | Epibulus insidiator |
| Longnose hawkfish | Oxycirrhites typus |
| Longnose sawshark | Pristiophorus cirratus |
| Longnose skate | Dipturus oxyrinchus |
| Longnose stonebasher | Gnathonemus longibarbis |
| Longnosed butterflyfish | Chelmon rostratus |
| Longsnout butterflyfish, Caribbean longsnout butterflyfish, Poey's butterflyfish | Prognathodes aculeatus |
| Long-snout clingfish, Urchin clingfish | Diademichthys lineatus |
| Longsnouted Butterflyfish, Yellow Long Nose Butterfly | Forcipiger flavissimus |
| Long-snouted icefish, Unicorn icefish | Channichthys rhinoceratus |
| Long-snouted seahorse | Hippocampus guttulatus |
| Longspine Squirrelfish, Miss Darlington, Squirrelfish, Wrenchman | Holocentrus rufus |
| Longtail southern cod | Patagonotothen ramsayi |
| Longtail tuna, Northern bluefin tuna | Thunnus tonggol |
| Longtooth grouper | Epinephelus bruneus |
| Lookdown | Selene vomer |
| Lovely Hatchetfish, Atlantic Silver Hatchetfish | Argyropelecus aculeatus |
| Lubbock's Yellowtail Damselfish | Stegastes lubbocki |
| Lumpfish | Cyclopterus lumpus |
| Luna lionfish, Dragon's beard fish, Japanese lionfish | Pterois lunulata |
| Lyrefin pearlfish, Brasilia lyrefin | Cynolebias boitonei |
| Lyretail panchax, Golden panchax, Cape Lopez lyretail | Aphyosemion australe |
| Mackerel icefish | Champsocephalus gunnari |
| Mackerel tuna, little tuna, Wavyback skipjack tuna, Kawakawa, Tongkol | Euthynnus affinis |
| Madeira rockfish | Scorpaena maderensis |
| Magellanic rockcod, Maori cod, Blue notothenia, Orange throat notothen | Paranotothenia magellanica |
| Mahi-mahi, Commn dolphinfish | Coryphaena hippurus |
| Mailed butterflyfish, Reticulated butterflyfish, Black butterflyfish | Chaetodon reticulatus |
| Malabar blood snapper | Lutjanus malabaricus |
| Malawi golden cichlid | Melanochromis auratus |
| Malawi golden cichlid, Bumblebee Cichlid, Hornet Cichlid | Pseudotropheus crabro |
| Malayan leaffish | Pristolepis fasciata |
| Maldive anemonefish | Amphiprion nigripes |
| Maluti redfin | Pseudobarbus quathlambae |
| Manchurian trout | Brachymistax lenok |
| Mandarin fish | Siniperca chuatsi |
| Mandarinfish | Synchiropus splendidus |
| Man-eating piranha, Piraya piranha, San Francisco piranha | Pygocentrus piraya |
| Mangar | Luciobarbus esocinus |
| Mangrove red snapper, Mangrove jack, Grey snapper, Creek red bream, Stuart evader, Dog bream | Lutjanus argentimaculatus |
| Mangrove snapper | Lutjanus griseus |
| Manta ray | Manta sp. |
| Manybar goatfish | Parupeneus multifasciatus |
| Manyspotted flyingfish | Cheilopogon spilopterus |
| Marble goby | Oxyeleotris marmorata |
| Marble trout | Salmo marmoratus |
| Marbled headstander, High-backed headstander | Abramites hypselonotus |
| Marbled lungfish, leopard lungfish | Protopterus aethiopicus |
| Marbled rockcod | Notothenia rossii |
| Marine angelfishes | Holacanthus sp. |
| Marine hatchetfishes, Deep-sea hatchetfishes | Sternoptyx pseudobscura |
| Marlier's Julie, Spotted Julie, Chequered Julie | Julidochromis marlieri |
| Masked spinefoot, Masked rabbitfish, Bluelined rabbitfish, Blue-lined spinefoot, Decorated rabbitfish, Maiden spinefoot | Siganus puellus |
| Mawson's dragonfish | Cynodraco mawsoni |
| Maypole butterflyfish, Scrawled butterflyfish | Chaetodon meyeri |
| Mbuna pufferfish, Giant pufferfish, Giant freshwater pufferfish, Mbu pufferfish | Tetraodon mbu |
| Mediterranean horse mackerel, Black Sea horse mackerel, Horse mackerel, Mediterranean scad | Trachurus mediterraneus |
| Mediterranean parrotfish | Sparisoma cretense |
| Mediterranean rainbow wrasse | Coris julis |
| Medusafishes | Seriolella sp. |
| Megamouth shark | Megachasma pelagios |
| Mekong giant catfish | Pangasianodon gigas |
| Melliss's scorpionfish | Scorpaena mellissii |
| Melon butterflyfish, Indian redfin butterflyfish | Chaetodon trifasciatus |
| Midnight parrotfish | Scarus coelestinus |
| Milkfish | Chanos chanos |
| Miller's thumb, Freshwater sculpin, European bullhead | Cottus gobio |
| Millet butterflyfish, Lemon butterflyfish, Millet-seed butterflyfish | Chaetodon miliaris |
| Mirrorbelly, Barreleye, Grimaldi's barreleye, Flatiron fish | Monacoa grimaldii |
| Misty grouper, Black grouper, Convict grouper, Eightbar grouper, Moustache grouper | Hyporthodus mystacinus |
| Monkey goby, Babka goby | Neogobius fluviatilis |
| Moon wrasse, Crescent wrasse, Lyretail wrasse | Thalassoma lunare |
| Moonfish | Mene maculata |
| Moorish idol | Zanclus cornutus |
| Moray eel | Muraena helena |
| Mottled grouper | Mycteroperca rubra |
| Moustache catfish | Hemisynodontis membranacea |
| Mozambique large-eye bream | Wattsia mossambica |
| Mozambique mouth-breeder | Oreochromis mossambicus |
| Mozambique scorpionfish | Parascorpaena mossambica |
| Mutton Fish, Mutton Snapper, Snapper, Virgin Snapper | Lutjanus analis |
| Mutton hamlet | Alphestes afer |
| Myer's icefish | Chionodraco myersi |
| Narrow-barred spanish mackerel | Scomberomorus commerson |
| Narrownose chimaera | Harriotta raleighana |
| Narrownose smooth-hound | Mustelus schmitti |
| Nassau grouper | Epinephelus striatus |
| Nelma, Sheefish, Siifish, Inconnu, Connie | Stenodus nelma |
| Neon damselfish | Pomacentrus coelestis |
| Neon goby | Elacatinus oceanops |
| Neon tetra | Paracheirodon innesi |
| New Zealand demoiselle | Chromis dispilus |
| Nile mouthbreeder, Nile tilapia | Oreochromis niloticus |
| Nile perch | Lates niloticus |
| Nile puffer, Globe fish, Lineatus puffer, Fahaka pufferfish | Tetraodon lineatus |
| Ningu | Labeo victorianus |
| Nishikigoi, Koi | Cyprinus carpio |
| North Atlantic flounder | Platichthys flesus |
| North New Guinea rainbowfish, New Guinea rainbowfish, Red-finned rainbowfish | Melanotaenia affinis |
| North Pacific crestfish, Unicornfish | Lophotus capellei |
| Northern puffer, Sugar toads | Sphoeroides maculatus |
| Northern snakehead | Channa argus |
| Northern wolffish | Anarhichas denticulatus |
| Norway redfish, small redfish, lesser redfish, Norway haddock, Ocean perch, Rosefish | Sebastes viviparus |
| Nurse shark | Ginglymostoma cirratum |
| Nursehound | Scyliorhinus stellaris |
| Nyassa blue cichlid, Zebra mbuna | Metriaclima zebra |
| Oblique-banded snapper | Pristipomoides zonatus |
| Obscure snakehead | Parachanna obscura |
| Ocean sunfish | Mola mola |
| Ocean Surgeonfish | Acanthurus bahianus |
| Oceanic whitetip shark | Carcharhinus longimanus |
| Ocellate river stingray, Peacock-eye stingray, Black river stingray | Potamotrygon motoro |
| Ocellated labyrinth fish | Ctenopoma muriei |
| Ocellated pipefish, Orange-spotted pipefish | Corythoichthys ocellatus |
| Ohrid trou, Lake Ohrid brown trout | Salmo letnica |
| Onespot demoiselle | Chrysiptera unimaculata |
| Orange basslet, Lyretail coralfish, Lyretail anthias, lyretail fairy basslet, Orange fairy basslet, Orange seaperch, Scalefin basslet, Scalefin fairy basslet, Scalefin anthias | Pseudanthias squamipinnis |
| Orange chromide | Etroplus maculatus |
| Orange roughy, Red roughy, Slimehead, Deep sea perch | Hoplostethus atlanticus |
| Orange skunk clownfish | Amphiprion sandaracinos |
| Orangeback angelfish | Centropyge acanthops |
| Orangefin anemonefish | Amphiprion chrysopterus |
| Orangefin labeo | Labeo calbasu |
| Orangespot tang | Acanthurus olivaceus |
| Orange-spotted therapon | Mesopristes kneri |
| Orange-spotted trevally | Carangoides bajad |
| Orangethroat darter | Etheostoma spectabile |
| Oriental flying gurnard, Purple flying gurnard | Dactyloptena orientalis |
| Ornate ctenopoma, Orange ctenopoma, Ornate climbing perch, Pretty ctenopoma, Rainbow ctenopoma | Microctenopoma ansorgii |
| Ornated butterflyfish | Chaetodon ornatissimus |
| Oscar, Tiger oscar, Velvet cichlid, Marble cichlid | Astronotus ocellatus |
| Otuno | Olivaichthys viedmensis |
| Oval butterflyfish | Chaetodon lunulatus |
| Pacific agujon needlefish | Tylosurus pacificus |
| Pacific electric ray | Tetronarce californica |
| Pacific fat sleeper | Dormitator latifrons |
| Pacific halibut | Hippoglossus stenolepis |
| Pacific jack mackerel, Californian jack mackerel | Trachurus symmetricus |
| Pacific salmon, Pacific trout | Oncorhynchus sp. |
| Pacific sierra | Scomberomorus sierra |
| Pacific slopehead parrotfish | Chlorurus frontalis |
| Pacific viperfish | Chauliodus macouni |
| Painted frogfish, Spotted frogfish | Antennarius pictus |
| Painted notothen, Painted notie | Lepidonotothen larseni |
| Pale-edged stingray, Sharpnose stingray | Dasyatis zugei |
| Parrotfishes | Scarus sp. |
| Patagonian toothfish | Dissostichus eleginoides |
| Peaceful betta, Crescent betta | Betta imbellis |
| Peacock blenny | Salaria pavo |
| Peacock damselfish | Pomacentrus pavo |
| Peacock gudgeon, Peacock goby | Tateurndina ocellicauda |
| Peacock hind, Roi, Bluespotted grouper, Celestial grouper | Cephalopholis argus |
| Peacock wrasse, Ornate wrasse | Thalassoma pavo |
| Pearl danio | Danio albolineatus |
| Pearl toby | Canthigaster margaritata |
| Pearlscale butterflyfish, Yellow-tailed butterflyfish, Crosshatch butterflyfish, Philippines chevron butterflyfish | Chaetodon xanthurus |
| Pelican barracuda | Sphyraena idiastes |
| Pelican gulper eel | Eurypharynx pelecanoides |
| Penpoint gunnel | Apodichthys flavidus |
| Peppermint basslet, Swissguard basslet | Liopropoma rubre |
| Permit | Trachinotus falcatus |
| Peruvian anchoveta | Engraulis ringens |
| Pesce gatto nebuloso | Ameiurus nebulosus |
| Peters' elephant-nose fish, Elephantnose fish, long-nosed elephant fish, Ubangi mormyrid | Gnathonemus petersii |
| Picasso fish, Striped triggerfish | Rhinecanthus aculeatus |
| Pickhandle barracuda, Banded Barracuda, Yellowtail Barracuda, Sea Pike | Sphyraena jello |
| Pike asp | Aspiolucius esocinus |
| Pike cichlid | Crenicichla lepidota |
| Pikeperch | Sander lucioperca |
| Pilot fish | Naucrates ductor |
| Pindani | Pseudotropheus socolofi |
| Pineapplefish, Knightfish, Coat-of-mail fish, Port-and-starboard light fish | Cleidopus gloriamaris |
| Pink whipray | Himantura fai |
| Pinktail triggerfish | Melichthys vidua |
| Pitcairn angelfish | Genicanthus spinus |
| Plain bonito, Plain Pelamide | Orcynopsis unicolor |
| Planetail firefish, Spotless butterfly-cod | Pterois russelii |
| Plash tetra, Splashing tetra | Copella arnoldi |
| Plate fish, Peacock flounder | Bothus lunatus |
| Platy | Xiphophorus sp. |
| Point-headed holy-fish | Callanthias ruber |
| Polka-dot African catfish, Angel squeaker | Synodontis angelicus |
| Polynesian wrasse | Pseudojuloides atavai |
| Pompano dolphinfish | Coryphaena equiselis |
| Pompano, Snubnose dart | Trachinotus ovatus |
| Pontic shad, Black Sea shad, Kerch shad | Alosa immacolata |
| Popondetta blue-eye | Pseudomugil connieae |
| Porcupine ray | Urogymnus asperrimus |
| Porcupinefish | Diodon hystrix |
| Porcupinefishes, Balloonfishes | Diodon sp. |
| Porkfish | Anisotremus virginicus |
| Powder blue tang, Powderblue surgeonfish. | Acanthurus leucosternon |
| Prickly leather-jacket, Tasselled leather-jacket | Chaetodermis penicilligerus |
| Princess anthias | Pseudanthias smithvanizi |
| Princess cichlid, Princess of Burundi, Lyretail cichlid, Fairy cichlid, Brichard's Lamprologus | Neolamprologus brichardi |
| Princess parrotfish | Scarus taeniopterus |
| Puddingwife | Halichoeres radiatus |
| Pufferfishes | Sphoeroides sp. |
| Pumpkinseed, Pond perch, Common sunfish | Lepomis gibbosus |
| Purple Mudsucker | Labeo congoro |
| Purple tang, Yellowtail tang | Zebrasoma xanthurum |
| Putitor mahseer, Himalayan mahseer, Golden mahseer | Tor putitora |
| Puye, Puyen | Galaxias platei |
| Pygmy toby | Canthigaster pygmaea |
| Pygmygobies, Dwarfgobies | Trimma sp. |
| Pyramid Butterflyfish, Brushytoothed Butterflyfish | Hemitaurichthys polylepis |
| Queen angelfish | Holacanthus ciliaris |
| Queen coris | Coris formosa |
| Queen parrotfish | Scarus vetula |
| Queen Triggerfish | Balistes vetula |
| Queensland grouper, Brindle grouper, Mottled-brown sea bass | Epinephelus lanceolatus |
| Rabbit fish | Chimaera monstrosa |
| Rainbow krib | Pelvicachromis pulcher |
| Rainbow parrotfish | Scarus guacamaia |
| Rainbow runner | Elagatis bipinnulata |
| Rainbow Tetra, Emperor Tetra | Nematobrycon palmeri |
| Ram cichlid | Microgeophagus ramirezi |
| Ram cichlid, German blue ram, Asian ram, Ramirez's dwarf cichlid | Mikrogeophagus ramirezi |
| Rectangular triggerfish | Rhinecanthus rectangulus |
| Red aphyosemion, Twostriped killi, Twostripe lyretail | Aphyosemion bivittatum |
| Red bream, Broad alfonsino | Beryx decadactylus |
| Red cheek fairy basslet, Threadfin anthias, Pacific basslet | Pseudanthias huchtii |
| Red devil cichlid | Amphilophus citrinellus |
| Red discus, Heckel discus | Symphysodon discus |
| Red drum, Channel bass, Redfish, Spottail bass | Sciaenops ocellatus |
| Red emperor, Emperor red snapper, Emperor snapper, Government bream, King snapper | Lutjanus sebae |
| Red goatfish, Northern goatfish | Mullus auratus |
| Red grouper | Epinephelus morio |
| Red gurnard | Chelidonichthys cuculus |
| Red handfish | Thymichthys politus |
| Red hind | Epinephelus guttatus |
| Red mullet | Mullus surmuletus |
| Red mullet, Striped goatfish, Striped mullet | Mullus barbatus |
| Red parrotfish | Scarus xanthopleura |
| Red scorpionfish | Pontinus furcirhinus |
| Red Sea bannerfish | Heniochus intermedius |
| Red Sea Butteflyfish | Chaetodontoplus mesoleucus |
| Red Sea Clown Surgeon | Acanthurus sohal |
| Red Sea dascyllus | Dascyllus marginatus |
| Red Sea houndfish | Tylosurus choram |
| Red Sea sailfin tang, Desjardin's sailfin tang | Zebrasoma desjardinii |
| Red seabream | Pagrus major |
| Red soldierfish | Sargocentron rubrum |
| Red Squirrelfish | Sargocentron hastatum |
| Red stingray | Hemitrygon akajei |
| Red velvetfish | Gnathanacanthus goetzeei |
| Redband parrotfish, Gutong, Rainbow parrot, Black parrot,Blisterside | Sparisoma aurofrenatum |
| Red-bar anthias | Pseudoanthias cooperi |
| Red-bellied piranha | Pygocentrus nattereri |
| Redbreast sunfish | Lepomis auritus |
| Redbreast tilapia, Redbrested bream | Coptodon rendalli |
| Redbreasted wrasse | Cheilinus fasciatus |
| Redeye labeo | Labeobarbus nedgia |
| Redfin parrotfish | Sparisoma rubripinne |
| Red-finned blue-eye | Scaturiginichthys vermeilipinnis |
| Redfinned Cichlid, Scrapermouth Mbuna | Labeotropheus trewavasae |
| Redfish, Red Scorpionfish | Scorpaena sp. |
| Redlined triggerfish, Orange-lined Triggerfish | Balistapus undulatus |
| Rednose labeo, Hunyani labeo, Manyame labeo, Rednose mudsucker, Sailfin mudsucker | Labeo altivelis |
| Red-shoulder wrasse | Stethojulis bandanensis |
| Redspotted hawkfish | Amblycirrhitus pinos |
| Redstriped butterflyfish, Crescent-masked butterflyfish, Lunule butterflyfish, Halfmoon butterflyfish, Moon butterflyfish, Raccoon butterfly | Chaetodon lunula |
| Redtail catfish | Phractocephalus hemioliopterus |
| Redtail notho | Nothobranchius guentheri |
| Red-tailed black shark | Epalzeorhynchos bicolor |
| Red-tailed butterflyfish, Redtail butterflyfish, PPakistani butterflyfish | Chaetodon collare |
| Redtoothed filefish | Odonus niger |
| Reef butterflyfish | Chaetodon sedentarius |
| Reef manta ray | Mobula alfredi |
| Reef squirrelfish | Sargocentron coruscum |
| Resplendent pygmy angelfish | Centropyge resplendens |
| Reticulated corydoras | Corydoras reticulatus |
| Ribbon eel | Rhinomuraena quaesita |
| Ribbon sawtail fish | Idiacanthus fasciola |
| Ribboned sweetlips, Yellow-ribbon sweetlips | Plectorhinchus polytaenia |
| Ridge scaled rattail, Ridge-scaled grenadier | Macrourus carinatus |
| Rightangled butterflyfish | Chaetodon trifascialis |
| Ringstreaked guitarfish, Angel fish | Rhinobatos hynnicephalus |
| Rio Grande cichlid, Texas cichlid | Herichthys cyanoguttatum |
| River trout | Salmo trutta |
| Rock beauty | Holacanthus tricolor |
| Rock flagtail, Jungle perch, Mountain trout, Buffalo bream, Dusky-finned bulleye, Rockmountain bass, Spotted flagtail | Kuhlia rupestris |
| Rock goby | Gobius paganellus |
| Rock hind | Epinephelus adscensionis |
| Rohu | Labeo rohita |
| Rose fish, Ocean perch, Atlantic redfish, Norway haddock, Golden redfish, Pinkbelly rosefish, Bergylt | Sebastes norvegicus |
| Rosy barb | Pethia conchonius |
| Rosy bitterling, Tairiku baratanago | Rhodeus ocellatus |
| Rosy razorfish | Xyrichtys martinicensis |
| Rough flutemouth, Red cornetfish | Fistularia petimba |
| Roughhead grenadier, Onion-eye grenadier | Macrourus berglax |
| Round ribbontail ray | Taeniurops meyeni |
| Roundel Skate | Rostroraja texana |
| Roving coral grouper | Plectropomus pessuliferus |
| Royal angelfish | Pygoplites diacanthus |
| Royal threadfin | Pentanemus quinquarius |
| Ruby shark ,Red-fin shark, Red-finned shark, Rainbow sharkminnow | Epalzeorhynchos frenatum |
| Rudderfish | Kyphosus cinerascens |
| Ruff, Tommy ruff, Australian ruff | Arripis georgianus |
| Ruffe | Gymnocephalus cernua |
| Russell's oarfish | Regalecus russelii |
| Russell's Snapper, Moses Snapper, Moses Perch | Lutjanus russellii |
| Russian sturgeon | Acipenser gueldenstaedtii |
| Rusty angelfish | Centropyge ferrugata |
| Rusty jobfish, Ironjaw snapper, Red smalltooth job | Aphareus rutilans |
| Rusty parrotfish | Scarus ferrugineus |
| Saberfin killie | Terranatos dolichopterus |
| Saddle grunt, Blotched grunt, Blotched javelin | Pomadasys maculatus |
| Saddleback plunderfish | Pogonophryne scotti |
| Saddled seabream, Saddle bream, Oblade | Oblada melanura |
| Saddletail grouper, Black cod or Black rock-cod (in Australia), Saddle-tailed grouper o Spotted black grouper (in Nuova Zealanda) | Epinephelus daemelii |
| Sail icefish, White-Blooded Fish | Channichthys velifer |
| Sailfin blenny | Emblemaria pandionis |
| Sailfin flying fish | Parexocoetus brachypterus |
| Sailfin molly | Poecilia latipinna |
| Sailfin tang | Zebrasoma veliferum |
| Sailfish | Istiophorus sp. |
| Sailor flyingfish | Prognichthys sealei |
| Saint Helena butterflyfish, Cunningfish | Chaetodon sanctaehelenae |
| Sakhalin sturgeon | Acipenser mikadoi |
| Sam soldier, Lonchin soldierfish | Neoniphon sammara |
| Sand devil, Atlantic angel shark | Squatina dumeril |
| Sand steenbras, Striped seabream | Lithognathus mormyrus |
| Sand tiger shark | Carcharias taurus |
| Sasal's Sicyopus | Sicyopus sasali |
| Scalloped hammerhead | Sphyrna lewini |
| Scalloped ribbonfish | Zu cristatus |
| Scarlet frogfish, Freckled frogfish | Antennarius coccineus |
| Scarlet parrotfish, Scarlet wrasse | Pseudolabrus miles |
| Scavenger, Slender Emperor, Variegated Emperor | Lethrinus variegatus |
| Schooling bannerfish, False moorish idol | Heniochus diphreutes |
| Schraetzer | Gymnocephalus schraetzer |
| Scissor-tail Sergeant, Striptailed Damselfish | Abudefduf sexfasciatus |
| Scrawled filefish, Unicornfish | Aluterus scriptus |
| Scribbled angelfish | Chaetodontoplus duboulayi |
| Sculpin-perch, Asprete, Romanian darter. | Romanichthys valsanicolas |
| Sea Horse | Hippocampus hippocampus |
| Sea lamprey | Petromyzon marinus |
| Seagrass wrasse | Novaculoides macrolepidotus |
| Seahorses | Hippocampus sp. |
| Sebae silverfish | Monodactylus sebae |
| Senegal bichir, Gray bichir, Cuvier's bichir | Polypterus senegalus |
| Senegalese sole | Solea senegalensis |
| Sergeant-major | Abudefduf saxatilis |
| Serpae tetra | Hyphessobrycon eques |
| Sevan trout | Salmo ischchan |
| Seychelles anemonefish | Amphiprion fuscocaudatus |
| Seychelle's blenny | Stanulus seychellensis |
| Seychelles butterflyfish | Chaetodon madagaskariensis |
| Shallow-water Cape hake, South African hake | Merluccius capensis |
| Sharknose goby, Caribbean cleaner goby, Caribbean cleaning goby | Elacatinus evelynae |
| Sharksucker, Live sharksucker, Slender sharksucker | Echeneis naucrates |
| Sharpbeak terapon | Rhynchopelates oxyrhynchus |
| Sharpnose sevengill shark, One-finned shark, Perlon shark, Sevengill cow shark, Sharpsnouted sevengill, Slender sevengill, | Heptranchias perlo |
| Sheephead bream | Diplodus puntazzo |
| Short mackerel, Shortbodied mackerel | Rastrelliger brachysoma |
| Shortbill spearfish, Japanese spearfish, Shortnose spearfish, Slender spearfish | Tetrapturus angustirostris |
| Shortfin mako shark | Isurus oxyrinchus |
| Shortfin mako shark | Isurus oxyrhincus |
| Shorthorn sculpin, Bull-rout | Myoxocephalus scorpius |
| Shortnosed unicornfish | Naso brevirostris |
| Short-tail nurse shark | Pseudoginglymostoma brevicaudatum |
| Siamese fighting fish | Betta splendens |
| Siberian sturgeon | Acipenser baerii |
| Sicklefin Labeo | Labeo weeksii |
| Sicklefin lemon shark, Sharptooth lemon shark | Negaprion acutidens |
| Silky shark | Carcharhinus falciformis |
| Silver carp | Hypophthalmichthys molitrix |
| Silver cyprinid, Lake Victoria sardine | Rastrineobola agentea |
| Silver distichodus | Distichodus affinis |
| Silver hatchetfish | Gasteropelecus levis |
| Silver Hatchetfish | Argyropelecus olfersii |
| Silver hatchetfishes | Argyropelecus sp. |
| Silver pomfret, White pomfret | Pampus argenteus |
| Silver sweeper | Pempheris oualensis |
| Silverspot squirrelfish | Sargocentron caudimaculatum |
| Silverstripe mudskipper | Periophthalmus argentilineatus |
| Silvertip shark | Carcharhinus albimarginatus |
| Singapore parrotfish | Scarus prasiognathos |
| Six-banded tiger barb | Puntius hexazona |
| Sixbar wrasse, Six-banded wrasse | Thalassoma hardwicke |
| Six-barred panchax | Epiplatys sexfasciatus |
| Six-line wrasse | Pseudocheilinus hexataenia |
| Skipjack tuna | Katsuwonus pelamis |
| Slender filefish | Monacanthus tuckeri |
| Slender grouper | Anyperodon leucogrammicus |
| Slender seahorse | Hippocampus reidi |
| Slender-spined porcupine fish, Globefish | Diodon nicthemerus |
| Slimy head | Hoplostethus mento |
| Sloan's fangfish | Chauliodus sloani |
| Small red scorpionfish | Scorpaena notata |
| Small yellow croaker | Larimichthys polyactis |
| Smalleye hammerhead | Sphyrna tudes |
| Smalleyed ray, Smalleyed skate | Raja microocellata |
| Smallmouth grunt, Yellowstripe grunt | Haemulon chrysargyreum |
| Smallmouth yellowfish | Labeobarbus aeneus |
| Small-scale river carp | Cirrhinus microlepis |
| Small-spotted catshark | Scyliorhinus canicula |
| Smallspotted grunter | Pomadasys commersonnii |
| Smalltooth emperor, Longface emperor, Longnosed emperor, Pigface bream | Lethrinus microdon |
| Smalltooth sawfish | Pristis pectinata |
| Smith's butterflyfish | Chaetodon smithi |
| Smooth hammerhead | Sphyrna zygaena |
| Smooth trunkfish | Lactophrys triqueter |
| Snail darter | Percina tanasi |
| Snailfish | Liparis sp. |
| Snoek | Thyrsites atun |
| Snowflake moray | Echidna nebulosa |
| Snubnosed eel, Pug-nosed eel, Slime eel, Snub-nose parasitic eel | Simenchelys parasitica |
| Social wrasse | Cirrhilabrus rubriventralis |
| Soldierfish | Myripristis vittata |
| Somali butterflyfish | Chaetodon leucopleura |
| Somber sweetlips | Plectorhinchus schotaf |
| South American catfish | Rhamdia quelen |
| South American pilchard | Sardinops sagax |
| Southern blue whiting | Micromesistius australis |
| Southern bluefin tuna | Thunnus maccoyii |
| Southern Moonfish | Lampris immaculatus |
| Southern platyfish | Xiphophorus maculatus |
| Southern stingray | Hypanus americanus |
| Spangled cichlid | Limnochromis auritus |
| Spangled emperor, Green snapper, Morwong, North-west snapper, Sand bream, Sand snapper, Sixteen-pounder | Lethrinus nebulosus |
| Spanish grunt | Haemulon macrostomum |
| Spanish hogfish | Bodianus rufus |
| Spanish sardine | Sardinella aurita |
| Speckled tonguesole | Cynoglossus puncticeps |
| Speckled wrasse | Anampses meleagrides |
| Spikefin goby | Discordipinna griessingeri |
| Spine-cheeked anemonefish, Maroon clownfish | Premnas biaculeatus |
| Spined loach | Cobitis taenia |
| Spinner shark | Carcharhinus brevipinna |
| Spiny angelfish | Centropyge multispinis |
| Spiny Dogfish | Squalus acanthias |
| Spiny Icefish | Chaenodraco wilsonii |
| Spiny seahorse, Thorny seahorse | Hippocampus histrix |
| Spinycheek sleepers | Eleotris sp. |
| Spirlin | Alburnoides bipunctatus |
| Splendid ponyfish, Blacktip ponyfish | Eubleekeria splendens |
| Spot-banded butterflyfish, Spotband butterflyfish | Chaetodon punctatofasciatus |
| Spotbase burrfish, Yellowspotted burrfish | Chilomycterus spilostylus |
| Spotfin butterflyfish | Chaetodon ocellatus |
| Spotfin flyingfish | Cheilopogon furcatus |
| Spotfin frogfish | Anthias anthias |
| Spotfin goby cichlid | Tanganicodus irsacae |
| Spotfin hogfish | Bodianus pulchellus |
| Spot-tailed Butterflyfish | Chaetodon ocellicaudus |
| Spotted barbel, Korean doty barbel | Hemibarbus mylodon |
| Spotted coralgrouper | Plectropomus maculatus |
| Spotted ctenopoma, Leopard bush fish | Ctenopoma acutirostre |
| Spotted drum, Spotted ribbonfish | Equetus punctatus |
| Spotted eagle ray | Myliobatis aquila |
| Spotted eagle ray, Bonnetray | Aetobatus narinari |
| Spotted hawkfish, Blotched hawkfish, Redbarred hawkfish, Boar hawkfish, Threadfin hawkfish | Cirrhitichthys aprinus |
| Spotted lungfish | Protopterus dolloi |
| Spotted metynnis | Metynnis maculatus |
| Spotted moray | Gymnothorax moringa |
| Spotted ratfish | Hydrolagus colliei |
| Spotted scat, Butterfish, Mia mia, Spotted butterfish, Tiger scat | Scatophagus argus |
| Spotted scorpionfish | Scorpaena plumieri |
| Spotted Shark, Tiger Shark | Galeocerdo cuvier |
| Spotted sharpnose puffer, Spotted sharpnosed puffer | Canthigaster punctatissima |
| Spotted snake-eel | Myrichthys tigrinus |
| Spotted squeaker, Blackspotted squeaker, Speckled squeaker | Synodontis nigromaculatus |
| Spotted tilapia, Spotted mangrove cichlid, Black mangrove cichlid | Tilapia mariae |
| Spotted trunkfish, Box-fish, Cow-fish, Shell-fish | Lactophrys bicaudalis |
| Spotted weever | Trachinus araneus |
| Spotted wolffish | Anarhichas minor |
| Spotted yellowfin seabream | Acanthopagrus sheim |
| Squarespot anthias, Pink square anthias, Mirror basslet, Squarespot fairy basslet | Pseudanthias pleurotoenia |
| Squarespot anthias, Pink square anthias, Mirror basslet, Squarespot fairy basslet | Pseudanthias pleurotaenia |
| Squaretail coral grouper | Plectropomus areolatus |
| Squeaker | Synodontis sp. |
| Squirrelfish | Sargocentron sp. |
| St. Paul's Fingerfin | Nemadactylus monodactylus |
| Starck's demoiselle | Chrysiptera starcki |
| Stargazer | Uranoscopus scaber |
| Starry flounder | Platichthys stellatus |
| Starry Sturgeon, Stellate sturgeon | Acipenser stellatus |
| Starry triggerfish, Flat-tailed triggerfish | Abalistes stellaris |
| Steephead parrotfish | Chlorurus strongylocephalus |
| Stellate seabat, Starry handfish | Halieutaea stellata |
| Sterlet | Acipenser ruthenus |
| Stonefish | Synanceia verrucosa |
| Stoplight parrotfish | Sparisoma viride |
| Straightfin barb | Barbus paludinosus |
| Streaked gurnard | Trigloporus lastoviza |
| Striated frogfish, Hairy frogfish | Antennarius striatus |
| Strigate parrotfish | Sparisoma strigatum |
| Striped bass, Atlantic striped bass, Striper, Linesider, Pimpfish, rock, Rockfish | Morone saxatilis |
| Striped beakfish, Barred knifejaw | Oplegnathus fasciatus |
| Striped burrfish, Porcupinefish | Chilomycterus schoepfii |
| Striped eel catfish | Plotosus lineatus |
| Striped grouper, Banded grouper, Spotfin rockcod | Epinephelus latifasciatus |
| Striped headstander, Striped anostomus, Striped anastomus | Anostomus anostomus |
| Striped marlin | Kajikia audax |
| Striped parrotfish | Scarus iseri |
| Striped rockcod | Trematomus hansoni |
| Striped snakehead, Chevron snakehead, Snakehead murrel | Channa striata |
| Striped squirrelfish, Whitespotted squirrelfish | Sargocentron xantherythrum |
| Striped sweetlips, Fourbanded sweetlips, Silver-banded sweetlips | Plectorhinchus diagrammus |
| Stripy footballer, Eastern footballer | Atypichthys latus |
| Stub-beard plunderfish | Pogonophryne barsukovi |
| Sturgeon | Acipenser sp. |
| Suez fusilier | Caesio suevica |
| Summan grouper | Epinephelus summana |
| Sunbleak, Belica, Moderlieschen | Leucaspius delineatus |
| Sunburst butterflyfish, Black-lipped butterflyfish, Blacklip butterflyfish, Klein's butterflyfish | Chaetodon kleinii |
| Sunrise dottyback | Pseudochromis flavivertex |
| Surge wrasse, Green-blocked wrasse, Purple wrasse, Red and green wrasse | Thalassoma purpureum |
| Sweetlip emperor, Sweetlip swoose, Trumpet emperor | Lethrinus miniatus |
| Swiri, Korean splendid dace | Coreoleuciscus splendidus |
| Swordfin characin | Corynopoma riisei |
| Swordfish | Xiphias gladius |
| Syr Darya, Shovelnose sturgeon | Pseudoscaphirhynchus fedtschenkoi |
| Tadpole codling | Salilota australis |
| Tadpole whiptail, Roundhead tadpole grenadier | Squalogadus modificatus |
| Tail-spot wrasse | Halichoeres melanurus |
| Taimen, Siberian giant trout, Siberian salmon | Hucho taimen |
| Taiwan ku fish | Onychostoma alticorpus |
| Tambaqui, Black pacu, Black-finned pacu | Colossoma macropomum |
| Tanganyika tilapia | Oreochromis tanganicae |
| Tarry hogfish | Bodianus bilunulatus |
| Tasmanian clingfish | Aspasmogaster tasmaniensis |
| Tasselled anglerfish | Rhycherus filamentosus |
| Tattler | Serranus phoebe |
| Tawny nurse shark | Nebrius ferrugineus |
| T-bar cichlid, Sajica cichlid | Amatitlania sajica |
| Teardrop butterflyfish | Chaetodon unimaculatus |
| Teira batfish, Longfin batfish, Longfin spadefish, Round faced batfish | Platax teira |
| Tench, Doctor fish | Tinca tinca |
| Thickbranch angler | Linophryne densiramus |
| Thicklip grey mullet | Chelon labrosus |
| Thick-lipped gourami | Trichogaster labiosa |
| Thornback cowfish | Lactoria fornasini |
| Thornback ray | Raja clavata |
| Threadfin butterflyfish | Chaetodon auriga |
| Threadfin rainbowfish, Featherfin rainbowfish | Iriatherina werneri |
| Threadfin saury | Saurida filamentosa |
| Three spot cichlid | Cichlasoma trimaculatum |
| Threeband pennantfish, Threeband bannerfish, Pennant bannerfish | Heniochus chrysostomus |
| Threebanded anemonefish, Twoband anemonefish | Amphiprion bicinctus |
| Three-banded butterflyfish | Chaetodon robustus |
| Threeblotched rabbitfish, Threespot rabbitfish, Threeblotch spinefoot, Threespot spinefoot | Siganus trispilos |
| Three-lined rainbowfish | Stethojulis trilineata |
| Threespot angelfish | Apolemichthys trimaculatus |
| Threespot damselfish | Stegastes planifrons |
| Three-spot gourami | Trichogaster leerii |
| Three-spot gourami | Trichogaster trichopterus |
| Threespot squirrelfish, Red and white soldierfish | Sargocentron cornutum |
| Three-striped butterflyfish | Chaetodon tricinctus |
| Thresher shark | Alopias vulpinus |
| Tiger barb | Puntigrus tetrazona |
| Tiger flathead | Platycephalus richardsoni |
| Tiger grouper | Mycteroperca tigris |
| Tiger sorubim, Tiger shovelnose | Pseudoplatystoma tigrinum |
| Tigerfish, Trahira | Hoplias malabaricus |
| Timor snapper | Lutjanus timoriensis |
| Tinfoil barb | Barbonymus schwanenfeldii |
| Tinker's butterflyfish, Hawaiian butterflyfish | Chaetodon tinkeri |
| Toad notie | Lepidonotothen mizops |
| Tokyo bitterling | Tanakia tanago |
| Tomato hind, Tomato rockcod, Tomato cod | Cephalopholis sonnerati |
| Tompot blenny | Parablennius gattorugine |
| Toothed seadevil | Neoceratias spinifer |
| Tope shark | Galeorhinus galeus |
| Treefish | Sebastes serriceps |
| Trevally | Caranx sp. |
| Triangular boxfish | Tetrosomus concatenatus |
| Tripodfish, Tripod spiderfish | Bathypterois grallator |
| Tropical gar | Atractosteus tropicus |
| Tropical two-wing flyingfish | Exocoetus volitans |
| Trout | Salmo trutta |
| True big-scale tetra | Brycinus macrolepidotus |
| True tunas, Real tunas | Thunnus sp. |
| Tub gurnard | Chelidonichthys lucernus |
| Tube-eye, Thread-tail | Stylephorus chordatus |
| Turbot | Scophthalmus maximus |
| Turncoat hogfish, Axilspot hogfish, Coral pigfish | Bodianus axillaris |
| Twait shad, Twaite shad | Alosa fallax |
| Twaite shad | Alosa agone |
| Twaite shad | Alosa finta |
| Twin-spot goby, Crab-eyed Goby | Signigobius biocellatus |
| Two-banded seabream | Diplodus prayensis |
| Twobar anemonefish | Amphiprion allardi |
| Two-lined monocle bream | Scolopsis bilineatus |
| Twospined angelfish, Dusky angelfish, Coral beauty | Centropyge bispinosa |
| Twospot astyanax | Astyanax bimaculatus |
| Two-spot red snapper, Red bass, Twinspot snapper, Bohar snapper | Lutjanus bohar |
| Twospot turkeyfish | Dendrochirus biocellatus |
| Upper Zambezi squeaker, Bubblebarb squeake | Synodontis woosnami |
| Vadigo | Campogramma glaycos |
| Vagabond butterflyfish, Crisscross butterflyfish | Chaetodon vagabundus |
| Valentin's sharpnose puffer, Saddled puffer, Black saddled toby | Canthigaster valentini |
| Vardar spined loach | Cobitis vardarensis |
| Variable platyfish, Variatus platy, Variegated platy | Xiphophorus variatus |
| Variegated lizardfish | Synodus variegatus |
| Velvet belly lanternshark | Etmopterus spinax |
| Venustus hap, Giraffe hap | Nimbochromis venustus |
| Very drab | Centropyge heraldi |
| Violet squirrelfish | Sargocentron violaceum |
| Violet warehou | Schedophilus velaini |
| Virgin chub, Virgin River chub | Gila seminuda |
| Vistula barbel | Barbus waleckii |
| Vundu | Heterobranchus longifilis |
| Vyrezub, Black Sea roach, Kutum | Rutilus frisii |
| Wahoo | Acanthocybium solandri |
| Wahrindi | Synodontis gambiensis |
| Walking catfish | Clarias batrachus |
| Weakfish | Cynoscion regalis |
| Web burrfish, Spiny box puffer, Bridled burrfish, Striped burrfish | Chilomycterus antillarum |
| Weedy Seadragon, Common Seadragon | Phyllopteryx taeniolatus |
| Wels catfish | Silurus glanis |
| West African goatfish | Pseudupeneus prayensis |
| Whale shark | Rhincodon typus |
| Whiptail catfish | Rineloricaria sp. |
| White bonnet anemonefish | Amphiprion leucokranus |
| White margate | Haemulon album |
| White marlin | Kajikia albida |
| White marlin | Tetrapturus albidus |
| White seabream, Sargo | Diplodus sargus |
| White Sturgeon, Pacific sturgeon, Oregon sturgeon, Columbia sturgeon, Sacramento sturgeon, California white sturgeon | Acipenser transmontanus |
| White trevally, Striped jack | Pseudocaranx dentex |
| Whitebar surgeonfish, Head-band surgeonfish | Acanthurus leucopareius |
| Whitefaced Surgeonfish | Acanthurus nigricans |
| Whitefin damsel | Pomacentrus albicaudatus |
| Whitemargin unicornfish | Naso annulatus |
| Whitenose shark | Nasolamia velox |
| Whitespot hawkfish, Halfspotted hawkfish, Multicolored hand-fish, Ornate hawkfish | Paracirrhites hemistictus |
| Whitespotted bamboo shark | Chiloscyllium plagiosum |
| White-spotted cichlid | Tropheus duboisi |
| Whitespotted filefish, American whitespotted filefish | Cantherhines macrocerus |
| Whitespotted grouper | Epinephelus caeruleopunctatus |
| White-spotted moray | Gymnothorax johnsoni |
| White-spotted puffer | Arothron hispidus |
| Whitetip reef shark | Triaenodon obesus |
| Whiting, Merling | Merlangius merlangus |
| Wide-band fusilier | Pterocaesio lativittata |
| Winter flounder, Black back | Pseudopleuronectes americanus |
| Wobbegong | Orectolobus sp. |
| Wolf eel | Anarrhichthys ocellatus |
| Wrasses | Halichoeres sp. |
| Wrestling halfbeak | Dermogenys pusilla |
| Yellow and blueback fusilier, Beautiful fusilier, Blue and gold fusilier, Yellow-tail fusilier | Caesio teres |
| Yellow boxfish | Ostracion cubicum |
| Yellow Face Pygmy, Cherub Angel | Centropyge argi |
| Yellow goatfish | Mulloidichthys martinicus |
| Yellow sea chub | Kyphosus incisor |
| Yellow stingray | Urobatis jamaicensis |
| Yellow tang | Zebrasoma flavescens |
| Yellowback anthias | Mirolabrichthys evansi |
| Yellowback fusilier | Caesio xanthonota |
| Yellowbanded sweetlips, Oblique-banded sweetlips | Plectorhinchus lineatus |
| Yellowbar angelfish, Half-moon angelfish, Yellow-marked angelfish, Yellowband angelfish, Yellow-blotched angelfish | Pomacanthus maculosus |
| Yellowbar parrotfish | Scarus scaber |
| Yellowbelly rockcod | Notothenia neglecta |
| Yellow-breasted wrasse | Anampses twistii |
| Yellowedge grouper | Hyporthodus flavolimbatus |
| Yellowfin grouper | Mycteroperca venenosa |
| Yellowfin notothen | Patagonotothen guntheri |
| Yellowfin surgeonfih, Cuvier's surgeonfish | Acanthurus xanthopterus |
| Yellowhead angelfish, Cocos angelfish, Cocos pygmy angelfish | Centropyge joculator |
| Yellowhead catfish, Korean bullhead | Pseudobagrus fulvidraco |
| Yellowhead jawfish | Opistognathus aurifrons |
| Yellowhead wrasse | Halichoeres garnoti |
| Yellowmargin triggerfish, Pineapple trigger, Yellowface triggerfish, Yellow-face triggerfish | Pseudobalistes flavomarginatus |
| Yellowmouth grouper, Crossband rockfish, Grey mannock, Hamlet, Harlequin rockfish, Princess rockfish, Rockfish, Salmon grouper, Salmon rock fish, Scamp | Mycteroperca interstitialis |
| Yellow-spotted triggerfish, Blue-and-gold triggerfish | Pseudobalistes sp. |
| Yellowtail amberjack, Yellowtail kingfish, Hiramasa, Great amberjack | Seriola lalandi |
| Yellowtail damselfish | Microspathodon chrysurus |
| Yellowtail wrasse, African coris | Coris gaimard |
| Yellow-tipped squirrelfish | Sargocentron seychellense |
| Yucatan molly, Giant sailfin molly | Poecilia velifera |
| Zambezi parrotfish | Cyphomyrus discorhynchus |
| Zarte | Vimba vimba |
| Zebra angelfish, Half-circled Angelfish, Koran Angelfish, Semicircle Angelfish | Pomacanthus semicirculatus |
| Zebra bullhead shark | Heterodontus zebra |
| Zebra mbuna | Maylandia zebra |
| Zebra moray | Gymnomuraena zebra |
| Zebra sea bream | Diplodus cervinus |
| Zebra shark | Stegostoma fasciatum |
| Zebra sole | Zebrias zebra |
| Zebra turkeyfish, Zebra lionfish | Dendrochirus zebra |
| Zebrafish | Danio rerio |
| Zigzag barb | Enteromius miolepis |
| Zig-zag eel | Mastacembelus armatus |
| Zingel | Zingel zingel |