517 relations: Abyssocottidae, Acanthuridae, Acestrorhynchus, Acropomatidae, Airbreathing catfish, Alepocephalidae, Alestidae, Amarsipus, Ambassidae, Amblycipitidae, Amblyopsidae, American sole, Amiidae, Anablepidae, Anarhichadidae, Anchovy, Angelshark, Anguillidae, Anomalopidae, Anoplopomatidae, Anostomidae, Anotopterus, Aphyonidae, Apistidae, Aplocheilidae, Aplodactylus, Apogonidae, Archerfish, Ariidae, Ariomma, Armored searobin, Arowana, Arripis, Artedidraconidae, Aspredinidae, Astroblepus, Aulopidae, Aulorhynchus, Australian prowfish, Ayu, Bagridae, Bandfish, Banjos banjos, Barbeled houndshark, Barracuda, Barracudina, Barreleye, Basking shark, Bathyclupeidae, Bathydraconidae, ..., Bathylutichthys, Batrachoididae, Beardfish, Bedotiidae, Bembridae, Berycidae, Bichir, Black seadevil, Bluefish, Bobtail snipe eel, Bonefishes, Bothidae, Brachaelurus, Bullhead shark, Butterfly ray, Butterflyfish, Caesionidae, Callichthyidae, Callorhinchus, Caproidae, Caracanthus, Carangidae, Catostomidae, Catshark, Centrarchidae, Centriscidae, Centrophoridae, Centropomus, Ceratiidae, Cetomimidae, Cetopsidae, Chaca (genus), Chaenopsidae, Champsodon, Chanidae, Channichthyidae, Characidae, Chiasmodontidae, Chilodontidae (fish), Chimaeridae, Chlamydoselachus, Chlopsidae, Cichlid, Citharidae, Citharinidae, Climbing gourami, Clinidae, Clupeidae, Cobia, Cobitidae, Codlet, Coelacanth, Coiidae, Coloconger, Combtooth blenny, Comephorus, Congiopodidae, Congridae, Cornetfish, Coryphaena, Cottidae, Cottocomephoridae, Cow shark, Cranoglanis, Crenuchidae, Crestfish, Crocodile shark, Cryptacanthodes, Ctenoluciidae, Curimatidae, Cusk-eels, Cutlassfish, Cutthroat eel, Cynodontidae, Cyprinidae, Dactylopteridae, Dalatiidae, Dartfish, Deep-sea smelt, Deepwater cardinalfish, Deepwater stingray, Denticle herring, Dichistius, Dinopercidae, Diplomystidae, Doradidae, Dottyback, Double angler, Draconettidae, Dragonet, Drepane (fish), Driftfish, Driftwood catfish, Dussumieriidae, Eagle ray, Earthworm eel, Echinorhinus, Eelpout, Eeltail catfish, Electric catfish, Electric eel, Eleginops maclovinus, Eleotridae, Elopidae, Emmelichthyidae, Enoplosus armatus, Ephippidae, Erethistidae, Ereuniidae, Erythrinidae, Esox, Eucla cod, False scorpionfish, False trevally, Family (biology), Fanfin, Fangtooth, Filefish, Fish, Flagtail, Flying fish, Footballfish, Freshwater butterflyfish, Freshwater hatchetfish, Freshwater sleeper, Frogfish, Fundulidae, Gadidae, Galaxiidae, Gar, Gastromyzontidae, Gempylidae, Ghost knifefish, Gibberichthys, Ginglymostomatidae, Glass knifefish, Glaucosoma, Gnomefish, Goatfish, Gobiesocidae, Goby, Gonorynchidae, Gonostomatidae, Goodeidae, Goosefish, Gourami, Grammatidae, Graveldiver, Greeneye, Grunt sculpin, Guitarfish, Gymnarchus, Gyrinocheilus, Haemulidae, Hagfish, Halfbeak, Halosaur, Hammerhead shark, Hammerjaw, Handfish, Harpagifer, Hawkfish, Hemigaleidae, Hemiodontidae, Hemiscylliidae, Hepsetus, Heptapteridae, Herring smelt, Heterenchelyidae, Heteropneustes, Hexagrammidae, Hillstream loach, Hingemouth, Hispidoberyx ambagiosus, Holocentridae, Hoplichthys, Horned lantern fish, Houndshark, Hypopomidae, Hypoptychidae, Ictaluridae, Indostomus, Ipnopidae, Jellynose fish, Kelpfish, Kissing gourami, Kneriidae, Kraemeriidae, Labrisomid, Lamnidae, Lancetfish, Lanternfish, Latridae, Lebiasinidae, Leftvent, Leiognathidae, Lepidogalaxias, Leptobrama, Leptochilichthys, Lethrinidae, Loach catfish, Long-finned pike, Longfin, Longfin escolar, Longneck eel, Lophichthys, Loricariidae, Lotidae, Louvar, Luciocephalus pulcher, Lumpsucker, Lutjanidae, Macrouridae, Manefish, Marlin, Mastacembelidae, Medusafish, Megamouth shark, Melanonus, Mene, Mercer's tusked silverside, Merlucciidae, Microdesmidae, Microstomatidae, Mitsukurinidae, Mochokidae, Mojarra, Molidae, Monocentridae, Monodactylidae, Monognathus, Mooneye, Moorish idol, Moray eel, Moridae, Moringuidae, Mormyridae, Moronidae, Morwong, Mullet (fish), Muraenesocidae, Muraenolepididae, Myroconger, Naked-back knifefish, Nandidae, Narcinidae, Needlefish, Nematogenys inermis, Neoscopelidae, Neosebastidae, Neotropical silverside, Nettastomatidae, Normanichthys crockeri, Northern lampreys, Notacanthidae, Notocheiridae, Notograptus, Notopteridae, Notosudidae, Nototheniidae, Nurseryfish, Oarfish, Odacidae, Ogcocephalidae, Old World silverside, Olyra (fish), Oneirodidae, Opah, Ophichthidae, Opistognathidae, Oplegnathus, Oreosomatidae, Ostraciidae, Ostracoberyx, Oxynotus, Paddlefish, Parabembras, Parabrotulidae, Paralichthyidae, Parascorpis typus, Parascylliidae, Paraulopus, Parazenidae, Parodontidae, Parrotfish, Pearleye, Pearlfish, Pegasidae, Pelican eel, Pentacerotidae, Percidae, Percilia, Percophidae, Percopsidae, Phallostethidae, Pholidae, Pholidichthys, Phosichthyidae, Phycidae, Pimelodidae, Pirate perch, Platycephalidae, Platytroctidae, Plectrogenium, Pleuronectidae, Poacher (fish), Poeciliidae, Polycentridae, Pomacanthidae, Pomacentridae, Pomfret, Porcupinefish, Potamotrygonidae, Pouched lamprey, Priacanthidae, Prickleback, Prochilodontidae, Profundulidae, Proscylliidae, Protopterus, Prowfish, Pseudaphritis urvillii, Pseudomugilidae, Pseudopimelodidae, Pseudotriakidae, Pseudotrichonotus, Psilorhynchus, Psychrolutidae, Pupfish, Pygmy sunfish, Queensland lungfish, Quillfish, Rabbitfish, Radiicephalus elongatus, Ragfish, Rainbowfish, Red velvetfish, Redmouth whalefish, Remora, Requiem shark, Retropinnidae, Rhamphichthyidae, Rhinochimaeridae, Rhyacichthyidae, Ribbonfish, Ricefish, Ridgehead, Ronquil, Roosterfish, Sabertooth fish, Saccopharynx, Salangidae, Salmonidae, Samaridae, Sand lance, Sand shark, Sand stargazer, Sandburrower, Sandperch, Sawfish, Sawshark, Sawtooth eel, Scatophagidae, Schilbeidae, Schindleria, Sciaenidae, Scoloplax, Scomberesocidae, Scombridae, Scophthalmidae, Scorpaenidae, Sea chub, Sea raven, Sea toad, Sebastidae, Serranidae, Setarchidae, Shark catfish, Sillaginidae, Siluridae, Sisoridae, Sixgill stingray, Skate (fish), Slimehead, Smelt (fish), Smooth skate, Snailfish, Snakehead (fish), Snipe eel, Soleidae, Solenostomus, South American lungfish, Southern flounder, Southern sandfish, Sparidae, Spikefish, Spiny turbot, Spinyfin, Splendid perch, Squalidae, Squaretail, Stargazer (fish), Stephanoberycidae, Sternoptychidae, Stickleback, Stomiidae, Stream catfish, Stromateidae, Sturgeon, Sundasalanx, Surfperch, Swamp eel, Sweeper, Swordfish, Symphysanodon, Synanceiidae, Syngnathidae, Synodontidae, Tarpon, Telescopefish, Telmatherinidae, Temperate perch, Terapontidae, Tetrabrachiidae, Tetraodontidae, Tetrarogidae, Thaumatichthyidae, Thornfish, Threadfin, Threadfin bream, Threefin blenny, Threetooth puffer, Thresher shark, Tilefish, Tinselfish, Tonguefish, Toothed seadevil, Torpedinidae, Triacanthidae, Trichodontidae, Trichomycteridae, Trichonotus, Triggerfish, Triglidae, Tripletail, Trumpetfish, Tube-eye, Umbridae, Urolophidae, Valencia (genus), Veliferidae, Velvet whalefish, Velvetfish, Viviparous brotula, Weever, Whale shark, Whipnose angler, Whiptail stingray, Wobbegong, Wolf herring, Wrasse, Wreckfish, Xenisthmidae, Zaniolepis, Zebra shark, Zeidae, Zenionidae. 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The Abyssocottidae are a family of fishes in the superfamily Cottoidea, the sculpins.
Acanthuridae is the family of surgeonfishes, tangs, and unicornfishes.
Acestrorhynchus ("needle jaw") is a genus of 14 species of characiform fish found only in fresh water in South America, the sole genus in the family Acestrorhynchidae.
Acropomatidae is a family of fish in the order Perciformes, commonly known as lanternbellies.
Airbreathing catfishes are fishes comprising the family Clariidae of order Siluriformes.
Slickheads or nakedheads are a family, Alepocephalidae, of marine smelts.
African tetras (family Alestidae, formerly spelled Alestiidae) are a group of characiform fish exclusively found in Africa.
Amarsipus is the sole genus in the bagless glassfish family, Amarsipidae.
The asiatic glassfishes are a family, Ambassidae, of freshwater and marine fishes in the order Perciformes.
The Amblycipitidae are a family of catfishes, commonly known as torrent catfishes.
The Amblyopsidae are a fish family commonly referred to as cavefish, blindfish, or swampfish.
The American soles are a family (Achiridae) of flatfish occurring in both freshwater and marine environments of the Americas.
The Amiidae are a family of basal ray-finned fishes.
Anablepidae is a family of fishes which live in brackish and freshwater habitats from southern Mexico to southern South America.
The wolffish, also known as sea wolves, are a family, Anarhichadidae, of perciform fish.
An anchovy is a small, common forage fish of the family Engraulidae.
The angelsharks are a group of sharks in the genus Squatina in the family Squatinidae, which are unusual in having flattened bodies and broad pectoral fins that give them a strong resemblance to rays.
The Anguillidae are a family of ray-finned fish that contains the freshwater eels.
Anomalopidae (lanterneye fishes or flashlight fishes) are a family of beryciform fish distinguished by bioluminescent organs located underneath their eyes, for which they are named.
The sablefishes are a family, Anoplopomatidae, of scorpaeniform fishes.
The Anostomidae are a family of ray-finned fishes that belong to the order Characiformes.
The daggertooths (genus Anotopterus) are a genus of marine mesopelagic fish in the order Aulopiformes, the sole genus of the family Anotopteridae.
Aphyonidae is a family of eel-like fishes in the order Ophidiiformes.
Apistidae, the wasp scorpionfishes, is a family of scorpaeniform fishes native to the Indian Ocean and the western Pacific Ocean.
Aplocheilidae is a family of fish in the order Cyprinodontiformes found in Africa, Asia and South America.
Aplodactylus is a genus of perciform fishes, the marblefishes, native to southern Australia, New Zealand, Peru, and Chile.
Cardinalfishes are a family, Apogonidae, of ray-finned fishes found in the Atlantic, Indian, and Pacific Oceans; they are chiefly marine, but some species are found in brackish water and a few (notably Glossamia) are found in fresh water.
The archerfish (spinner fish or archer fish) form a monotypic family, Toxotidae, of fish known for their habit of preying on land-based insects and other small animals by shooting them down with water droplets from their specialized mouths.
The Ariidae or ariid catfish are a family of catfish that mainly live in marine waters with many freshwater and brackish water species.
Ariomma is a genus of deepwater, marine perciform fishes.
The armored searobins, or armored gurnards are a family, Peristediidae, of scorpaeniform fishes found in deep waters around the world, with most species in tropical regions.
Arowanas are freshwater bony fish of the family Osteoglossidae, also known as bonytongues (the latter name is now often reserved for Arapaimidae).
Arripis is a genus of marine fishes from Australia and New Zealand, known as Australian salmon, kahawai and Australian herring.
The Artedidraconidae, barbeled plunderfishes, are a family of marine perciform fishes comprising four genera.
The Aspredinidae are a small South American family of catfishes (order Siluriformes) also known as the banjo catfishes, with about 42 species.
Astroblepus is a genus of fish in the family Astroblepidae found in South America and Panama.
The Aulopidae are a small family of aulopiform fish.
Aulorhynchus flavidus, the tube-snout, is a species of fish related to the sticklebacks.
The Australian prowfishes form a family, Pataecidae, of scorpaeniform fishes.
The or sweetfish, Plecoglossus altivelis, is a species of fish.
The Bagridae are a family of catfish that are native to Africa (Bagrus) and Asia (all other genera) from Japan to Borneo.
Bandfishes are a family, Cepolidae, of perciform marine fishes.
The banjofish (Banjos banjos) is a perciform fish, the only species in the monotypic genus Banjos and in the family Banjosidae.
The barbeled houndshark (Leptocharias smithii) is a species of ground shark and the only member of the family Leptochariidae.
The barracuda is a ray-finned fish known for its large size, fearsome appearance and ferocious behaviour.
Barracudinas are any member of the marine mesopelagic fish family Paralepididae: 50 or so extant species are found almost worldwide in deep waters.
Barreleyes, also known as spook fish (a name also applied to several species of chimaera), are small deep-sea argentiniform fish comprising the family Opisthoproctidae found in tropical-to-temperate waters of the Atlantic, Pacific, and Indian Oceans.
The basking shark (Cetorhinus maximus) is the second-largest living shark, after the whale shark, and one of three plankton-eating shark species, along with the whale shark and megamouth shark.
Bathyclupeidae is a family of Perciformes.
The Antarctic dragonfishes are a family, Bathydraconidae, of deep-sea perciform fishes.
Bathylutichthys is the sole genus in the family Bathylutichthyidae.
Batrachoididae is the only family in the ray-finned fish order Batrachoidiformes.
The beardfishes consist of a single extant genus, Polymixia, of deep-sea marine ray-finned fish named for their pair of long hyoid barbels.
The Bedotiidae are a family of fish known as the Madagascar rainbowfish, Madagascan rainbowfish, or Malagasy rainbowfish due to their endemism to Madagascar.
The deep-water flatheads are a family, the Bembridae, of bottom-dwelling fish.
Berycidae is a small family of deep-sea fishes, related to the squirrelfishes.
Bichirs and the reedfish comprise the Polypteridae, a family of archaic-looking ray-finned fishes and the only family in the order Polypteriformes.
Black seadevils are small, deepsea lophiiform fishes of the family Melanocetidae.
The bluefish (Pomatomus saltatrix) is the only extant species of the family Pomatomidae.
The bobtail snipe eels are two species of deep-sea fishes in the family Cyematidae, one only in each of two genera.
Albulidae is a family of fish, commonly known as the bonefishes, that are popular as game fish in Florida, select locations in the South Pacific and the Bahamas (where two bonefish are featured on the 10-cent coin) and elsewhere.
Lefteye flounders are a family, Bothidae, of flounders.
Brachaelurus (blind sharks) is the sole genus of sharks in the family Brachaeluridae in the order Orectolobiformes.
The bullhead sharks are a small order (Heterodontiformes) of basal modern sharks (Neoselachii).
The butterfly rays are the rays forming the genus Gymnura and the family Gymnuridae.
The butterflyfish are a group of conspicuous tropical marine fish of the family Chaetodontidae; the bannerfish and coralfish are also included in this group.
The fusiliers are a family, Caesionidae, of fishes in the order Perciformes.
Callichthyidae is a family of catfishes (order Siluriformes), called armored catfishes due to the two rows of bony plates (or scutes) running down the length of their bodies.
Callorhinchus, the plough-nose chimaeras or elephantfish, are the only living genus in the family Callorhinchidae (sometimes spelled Callorhynchidae).
Boarfishes are a small family, Caproidae, of marine fishes comprising two genera and 12 species.
Caracanthus, the coral crouchers, or orbicular velvetfishes, are a genus of scorpaeniform fishes.
The Carangidae are a family of fish which includes the jacks, pompanos, jack mackerels, runners, and scads.
The Catostomidae are the suckers of the order Cypriniformes, with about 78 species in this family of freshwater fishes.
Catsharks are ground sharks of the family Scyliorhinidae.
Centrarchidae (better known as sunfish) are a family of freshwater ray-finned fish belonging to the order Perciformes.
The Centriscidae are a family of fishes from the order Syngnathiformes which includes the snipefishes, shrimpfishes, and bellowfishes.
The Centrophoridae are a family of squaliform sharks.
Centropomus Lacépède, 1802, is a genus of predominantly marine fish comprising the family Centropomidae The type species is Centropomus undecimalis, the common snoo.
Sea devils are the family of deep-sea anglerfish known as the Ceratiidae, from the Greek keras, "horn", referring to the bioluminescent lure that projects from the fishes' forehead.
Flabby whalefish are small, deep-sea cetomimiform fish of the family Cetomimidae.
The Cetopsidae are a small family of catfishes (order Siluriformes), commonly called the whale catfishes.
Chaca is the only genus in the catfish family Chacidae.
The blennioid family Chaenopsidae includes the pike-blennies, tube-blennies, and flagblennies, all perciform marine fish.
Champsodon is the sole genus in the family Champsodontidae.
Chanidae is a family of fishes which has a number of fossil genera and one monotypic extant genus which contains the milkfish (Chanos chanos).
The crocodile icefish or white-blooded fish (Channichthyidae) comprise a family of notothenioid fish found in the Southern Ocean around Antarctica and southern South America, where water temperatures remain relatively stable (generally ranging from -1.8 to +2.0 °C).
Characidae, the characids or characins is a family of freshwater subtropical and tropical fish, belonging to the order Characiformes.
The Chiasmodontidae, snaketooth fishes or swallowers, are a family of deep-sea percomorph fishes, part of the order Trachiniformes, known from oceans worldwide.
The Chilodontidae, or headstanders, are a small family of freshwater characiform fishes found in northern and central South America.
The Chimaeridae, or shortnose chimaeras, are a family of cartilaginous fish.
Chlamydoselachus is a genus of sharks and the sole extant member of the family Chlamydoselachidae, in the order Hexanchiformes.
The Chlopsidae, or false morays, are a family of eels found in coral reefs worldwide.
Cichlids are fish from the family Cichlidae in the order Perciformes.
The Citharidae or largescale flounders are a small family of flounders with four genera.
The Citharinidae, the lutefishes, are a small family of characiform fish.
The Anabantidae are a family of perciform fish commonly called the climbing gouramies or climbing perches.
Clinidae is a family of blennioids; perciform marine fish.
Clupeidae is a family of ray-finned fishes, comprising, for instance, the herrings, shads, sardines, ilish, and menhadens.
The cobia (Rachycentron canadum) is a species of perciform marine fish, the only representative of the genus Rachycentron and the family Rachycentridae.
Cobitidae, also known as the True loaches, is a family of Old World freshwater fish.
Codlets are a family, Bregmacerotidae, of cod-like fishes, containing the single genus Bregmaceros found in tropical and subtropical waters throughout the world.
The coelacanths constitute a now rare order of fish that includes two extant species in the genus Latimeria: the West Indian Ocean coelacanth (Latimeria chalumnae) primarily found near the Comoro Islands off the east coast of Africa and the Indonesian coelacanth (Latimeria menadoensis).
The Coiidae is an invalid family of fish supposedly related to the Lobotidae and the Datnioides (such as Datnioides microlepis).
The Colocongridae, the worm eels or short-tail eels are a family of eels, containing a single genus, Coloconger.
Combtooth blennies are blennioids; perciform marine fish of the family Blenniidae.
Comephorus, known as the golomyankas or Baikal oilfish, are a genus comprising two species of peculiar, sculpin fishes endemic to Lake Baikal in Russia.
Congiopodidae is a family of scorpaeniform fishes native to the southern hemisphere, commonly known as pigfishes, horsefishes and racehorses.
The Congridae are the family of conger and garden eels.
The cornetfishes or flutemouths are a small family, the Fistulariidae, of extremely elongated fishes in the order Syngnathiformes.
Coryphaena is a genus of marine ray-finned fishes known as the dolphinfishes.
The Cottidae are a family of fish in the superfamily Cottoidea, the sculpins.
Cottocomephoridae, or the bighead sculpins or Baikal sculpins, are a family of scorpaeniform fishes mostly endemic to Russia (one species ranges into Mongolia) where they are mostly found in Lake Baikal and surrounding lakes and rivers.
Cow sharks are a family, the Hexanchidae, of sharks characterized by an additional pair or pairs of gill slits.
Cranoglanis is the only genus of armorhead catfishes.
The Crenuchidae, South American darters, are a family of freshwater fish of the order Characiformes.
Crestfishes, family Lophotidae, are lampriform fishes found in most oceans.
The crocodile shark (Pseudocarcharias kamoharai) is a species of mackerel shark and the only extant member of the family Pseudocarchariidae.
Cryptacanthodes is a genus of perciform fishes commonly referred to as wrymouths.
The Ctenoluciidae (meaning "comb light family"), also known as pike-characins, are a small family of freshwater fishes from Panama and South America.
The Curimatidae, toothless characins, are a family of freshwater fishes, of the order Characiformes.
The cusk-eel family, Ophidiidae, is a group of marine bony fishes in the order Ophidiiformes.
The cutlassfishes are about 40 species of predatory fish in the family Trichiuridae (order Perciformes) found in seas throughout the world.
Cutthroat eels are a family, Synaphobranchidae, of eels, the only members of the suborder Synaphobranchoidei.
Cynodontidae, also known as dogtooth characins or vampire tetras, are a family of predatory, characiform freshwater fishes from South America.
The Cyprinidae are the family of freshwater fishes, collectively called cyprinids, that includes the carps, the true minnows, and their relatives (for example, the barbs and barbels).
The flying gurnards are a family, Dactylopteridae, of marine fish notable for their greatly enlarged pectoral fins.
The Dalatiidae are the family of kitefin sharks of the order Squaliformes (the term "kitefin shark" also refers specifically to the species Dalatias licha).
Dartfishes are a subfamily, Ptereleotrinae, of goby-like fishes in the family Microdesmidae of the order Perciformes.
The deep-sea smelts are any members of the family Bathylagidae, a distinct group of marine smelts.
Deepwater cardinalfishes are perciform fishes in the family Epigonidae.
The deepwater stingray or giant stingaree (Plesiobatis daviesi) is a species of stingray and the sole member of the family Plesiobatidae.
The denticle herring (Denticeps clupeoides) is a small (15-cm-long) species of ray-finned fish found only in the rivers of Benin, Nigeria, and western Cameroon; it is related to the herrings, but notable for its large anal fin and its array of denticle-like scales under the head, which give it almost a furry appearance.
Dichistius is a genus of perciform fishes, the galjoen fishes, native to the Atlantic coast of southern Africa (D. capensis) and the Indian Ocean coast of southern Africa (D. multifasciatus).
The Dinopercidae, known commonly as the cavebasses, are a family of marine perciform fishes native to the western Indian and the Atlantic coasts of Africa.
The Diplomystidae, the velvet catfishes, are a family of primitive catfishes endemic to freshwater habitats in Argentina and Chile in southern South America.
The Doradidae are a family of catfishes also known as thorny catfishes or talking catfishes.
The dottybacks are a family, Pseudochromidae, of fishes in the order Perciformes.
Double anglers are a family, Diceratiidae, of anglerfishes.
The Draconettidae, slope dragonets, are a small family (about 14 species) of fish in the order Perciformes.
Dragonets are small, perciform, marine fish of the diverse family Callionymidae (from the Greek kallis, "beautiful" and onyma, "name") found mainly in the tropical waters of the western Indo-Pacific.
Drepane is a genus of fishes known commonly as the sicklefishes.
Nomeidae, the driftfishes, are a family of perciform fishes found in tropical and subtropical waters throughout the world.
The driftwood catfishes are catfishes of the family Auchenipteridae.
Dussumieriidae is a family of clupeiform fishes popularly called the "round herrings".
The eagle rays are a group of cartilaginous fishes in the family Myliobatidae, consisting mostly of large species living in the open ocean rather than on the sea bottom.
Chaudhuriidae, is a family of small freshwater eel-like fish related to the swamp eels and spiny eels, commonly known as the earthworm eels.
Echinorhinus is the only extant genus in the family Echinorhinidae.
The eelpouts are the ray-finned fish family Zoarcidae.
The eeltail catfish are a family (Plotosidae) of catfish whose tails are elongated in an eel-like fashion.
Electric catfish is the common name for the catfish (order Siluriformes) family Malapteruridae.
The electric eel (Electrophorus electricus) is a South American electric fish, and the only species in its genus.
Eleginops maclovinus, the Patagonian blenny, Falkland's mullet or rock cod, is a species of notothenioid fish found in coastal and estuarine habitats around southernmost South America, ranging as far north as Valparaíso on the Pacific side, and Uruguay on the Atlantic side.
Eleotridae is a family of fish commonly known as sleeper gobies, with about 34 genera and 180 species.
The Elopidae are a family of ray-finned fish containing the single genus Elops.
The Emmelichthyidae are a family of small to medium-sized marine fish known commonly as rovers.
Enoplosus armatus, the old wife (plural: old wives), is a species of perciform fish endemic to the temperate coastal waters of Australia.
Ephippidae is a family containing the spadefishes, with about eight genera and a total of 20 marine species.
Erethistidae are a family of catfishes that originate from southern Asia.
The Ereuniidae are a family of scorpaeniform fishes known as the deepwater bullhead sculpins.
The Erythrinidae are a family of fishes found in rivers and other freshwater habitats from Costa Rica south as far as Argentina.
Esox is a genus of freshwater fish, the only living genus in the family Esocidae—the esocids which were endemic to North America and Eurasia during the Paleogene through present.
The Eucla cod, Euclichthys polynemus, is a deepwater marine fish belonging to the cod order (Gadiformes).
The false scorpionfish (Centrogenys vaigiensis) is a species of perciform fish, the only species in genus Centrogenys, as well as family Centrogenyidae.
The false trevally, Lactarius lactarius,not to be confused with Lactarius in Fungi, is species of fish in the family Lactariidae, currently the sole member of the family.
In biological classification, family (familia, plural familiae) is one of the eight major taxonomic ranks; it is classified between order and genus.
Fanfins or hairy anglerfish are a family, Caulophrynidae, of anglerfishes.
Fangtooths are beryciform fish of the family Anoplogastridae (sometimes spelled "Anoplogasteridae") that live in the deep sea.
The filefish (Monacanthidae) are a diverse family of tropical to subtropical tetraodontiform marine fish, which are also known as foolfish, leatherjackets or shingles.
Fish are gill-bearing aquatic craniate animals that lack limbs with digits.
The flagtails (āhole or āholehole in the Hawaiian language) are a family (Kuhliidae) of perciform fish of the Indo-Pacific area.
The Exocoetidae are a family of marine fishes in the order Beloniformes class Actinopterygii.
The footballfish form a family, Himantolophidae, of globose, deep-sea anglerfishes found in tropical and subtropical waters of the Atlantic, Indian, and Pacific Ocean.
The freshwater butterflyfish or African butterflyfish, Pantodon buchholzi, is the only species in the family Pantodontidae within the order Osteoglossiformes.
The freshwater hatchetfishes are a family, Gasteropelecidae, of ray-finned fish from South and Central America.
Freshwater sleepers are a small family (Odontobutidae) (about 22 species) of gobiiform fishes native to freshwater rivers flowing into the South China Sea and the northwestern Pacific Ocean.
Frogfishes are any member of the anglerfish family Antennariidae, of the order Lophiiformes.
Fundulidae is the family of topminnows and North American killifishes.
The Gadidae are a family of marine fish, included in the order Gadiformes, known as the cods, codfishes or true cods.
The Galaxiidae are a family of mostly small freshwater fish in the Southern Hemisphere.
Gars (or garpike) are members of the Lepisosteiformes (or Semionotiformes), an ancient holosteian order of ray-finned fish; fossils from this order are known from the Late Jurassic onwards.
The Gastromyzontidae are a family of loaches native to China and Southeast Asia, where typically found in streams and rivers with a fast current.
The Gempylidae are a family of perciform fishes, commonly known as snake mackerels or escolars.
The ghost knifefishes are a family, Apteronotidae, of ray-finned fishes in the order Gymnotiformes.
The Gibberichthyidae, also known as gibberfishes, are a small family of deep sea stephanoberyciform fish, containing a single genus, Gibberichthys (from the Latin gibba, "humpbacked" and the Greek ichthys, "fish"), and two species.
The Ginglymostomatidae are a cosmopolitan family of carpet sharks, containing two monotypic genera of nurse sharks.
Glass knifefishes are fishes in the family Sternopygidae in the order Gymnotiformes.
Glaucosoma, the pearl perches, are perciform fishes native to the Indian Ocean waters around Australia and the western Pacific Ocean.
The gnomefishes form a small family, Scombropidae, consisting of three extant species of marine fish in the genus Scombrops.
The goatfishes are perciform fish of the family Mullidae.
Clingfishes are fishes of the family Gobiesocidae, belonging to the order Gobiesociformes.
Gobies are fishes of the family Gobiidae, one of the largest fish families comprising more than 2,000 species in more than 200 genera.
Gonorynchidae is a family of the Gonorynchiformes which has a number of fossil taxa and one extant genus, Gonorynchus, the beaked salmons.
The Gonostomatidae are a family of mesopelagic marine fish, commonly named bristlemouths, lightfishes, or anglemouths.
Splitfins are a family, Goodeidae, of teleost fish endemic to Mexico and some areas of the United States.
Goosefishes are anglerfishes in the family Lophiidae found in the Arctic, Atlantic, Indian, and Pacific Oceans, where they live on sandy and muddy bottoms of the continental shelf and continental slope, at depths in excess of.
Gouramis, or gouramies, are a group of freshwater anabantiform fishes that comprise the family Osphronemidae.
Grammatidae is a small family of fishes in the order Perciformes known commonly as basslets.
The graveldiver (Scytalina cerdale) is a species of perciform fish, the only species in the genus Scytalina and the family Scytalinidae.
Greeneyes are deep-sea aulopiform marine fishes in the small family Chlorophthalmidae.
The grunt sculpin or grunt-fish (Rhamphocottus richardsonii) is the only member of the fish family Rhamphocottidae.
The guitarfish are a family, Rhinobatidae, of rays.
Gymnarchus niloticus – commonly known as the aba, aba aba, frankfish, freshwater rat-tail, poisson-cheval, or African knifefish – is an electric fish, and the only species in the genus Gymnarchus and the family Gymnarchidae within the order Osteoglossiformes.
Gyrinocheilus is the single genus in the family Gyrinocheilidae, a family of small Southeast Asian cypriniform fishes that live in fast-flowing freshwater mountain streams.
Haemulidae is a family of fishes in the order Perciformes known commonly as grunts.
Hagfish, the class '''Myxini''' (also known as Hyperotreti), are eel-shaped, slime-producing marine fish (occasionally called slime eels).
The halfbeaks (family Hemiramphidae) are a geographically widespread and numerically abundant family of epipelagic fish inhabiting warm waters around the world.
Halosaurs are eel-shaped fishes found only at great ocean depths.
The hammerhead sharks are a group of sharks in the family Sphyrnidae, so named for the unusual and distinctive structure of their heads, which are flattened and laterally extended into a "hammer" shape called a cephalofoil.
The hammerjaw, Omosudis lowii, is a small deep-sea aulopiform fish, found worldwide in tropical and temperate waters to 4,000 m (13,000 ft) depth.
Handfish are any anglerfish within the family Brachionichthyidae, a group which comprises five genera and 14 extant species.
Harpagifer is a genus of perciform fish, the spiny plunderfishes, native to the southern oceans.
The hawkfishes are strictly tropical, perciform marine fishes of the family Cirrhitidae associated with the coral reefs of the western and eastern Atlantic and Indo-Pacific.
The weasel sharks are a family, the Hemigaleidae, of ground sharks found from the eastern Atlantic Ocean to the continental Indo-Pacific.
The Hemidontidae are a small family of freshwater characins found in northern South America, south to the Paraná-Paraguay Basin.
The Hemiscylliidae are a family of sharks in the order Orectolobiformes, commonly known as longtail carpet sharks and sometimes as bamboo sharks.
Hepsetus is a genus of African fishes, the African pike characins, in the order Characiformes.
The Heptapteridae, or three-barbeled catfishes, are a family of catfish that originate from the Americas.
The herring smelts or argentines are a family, Argentinidae, of marine smelts.
The Heterenchelyidae or mud eels are a small family of eels native to the Atlantic, Mediterranean, and eastern Pacific.
Heteropneustes, the airsac catfishes, is a genus of catfishes native to Asia.
The family of marine fishes Hexagrammidae incorporates the greenlings.
The hillstream loaches or river loaches are a family, the Balitoridae, of small fish from South, Southeast and East Asia.
The hingemouth (Phractolaemus ansorgii) is a small freshwater fish that is found only in west central Africa, the sole member of the family Phractolaemidae.
Hispidoberyx ambagiosus is a species of spiny-scale pricklefish found in the Indian and Pacific Oceans at depths from.
Holocentridae is a family of ray-finned fish, belonging to the order Beryciformes with the members of the subfamily Holocentrinae typically known as squirrelfish, while the members of Myripristinae typically are known as soldierfish.
Hoplichthys is a genus of fishes native to the Indian and Pacific Oceans.
The horned lantern fish or prickly seadevil (Centrophryne spinulosa) is a deep-sea anglerfish found worldwide.
Houndsharks, the Triakidae, are a family of ground sharks, consisting of about 40 species in nine genera.
The Hypopomidae are a family of fishes in the order Gymnotiformes known as the bluntnose knifefish.
The Hypoptychidae, the sand-eels, are a small family of gasterosteiform fishes native to the northwestern Pacific Ocean.
The Ictaluridae, sometimes called ictalurids, are a family of catfish native to North America, where they are important food fish and sometimes as a sport fish.
Indostomus is the sole genus of the monogeneric family Indostomidae, indigenous to freshwater habitats in Indochina.
The Ipnopidae (deepsea tripod fishes) are a family of fishes in the order Aulopiformes.
The jellynose fishes or tadpole fishes are the small order Ateleopodiformes.
A kelpfish is a member of the genus Chironemus of perciform fishes in the family Chironemidae, native to coastal Australia and New Zealand.
Kissing gouramis, also known as kissing fish or kissers (Helostoma temminckii), are large tropical freshwater fish comprising the monotypic labyrinth fish family Helostomatidae (from the Greek elos, stoma). These fish originate from Thailand to Indonesia.
The Kneriidae are a small family of freshwater gonorhynchiform fishes native to Africa.
The sand darters, family Kraemeriidae, are a small family (about 9 species) of gobiiform fishes native to the Indian Ocean to the central Pacific Ocean.
Labrisomids are small blennioids (blennies), perciform marine fish belonging to the family Labrisomidae.
The Lamnidae are the family of mackerel or white sharks. They are large, fast-swimming sharks, found in oceans worldwide.
Lancetfishes are large oceanic predatory fishes in the genus Alepisaurus ("scaleless lizard"), the only living genus in the family Alepisauridae.
Lanternfishes (or myctophids, from the Greek μυκτήρ myktḗr, "nose" and ophis, "serpent") are small mesopelagic fish of the large family Myctophidae.
Latridae is a family (about 5 species) of perciform fishes known as the trumpeters.
The pencil fishes are a family (Lebiasinidae) of freshwater fishes found in Costa Rica, Panama, and South America.
Leftvents are small, deep-sea lophiiform fish comprising the family Linophrynidae distributed throughout tropical to subtropical waters of all oceans.
Leiognathidae, the ponyfishes, slipmouths or slimys / slimies, are a small family of fishes in the order Perciformes.
Lepidogalaxias salamandroides is a species of small fish of Western Australia.
Leptobrama is a genus of fish in the family Leptobramidae found in the Pacific Ocean.
Leptochilichthys is a genus of marine smelts containing four species.
The Lethrinidae are a family of fishes in the order Perciformes commonly known as emperors, emperor breams, and pigface breams.
The loach catfishes are a family, Amphiliidae, of catfishes (order Siluriformes).
The long-finned pike or yellowfin pike (Dinolestes lewini) is a species of perciform fish, the only species in the genus Dinolestes, as well as the family Dinolestidae.
The longfins, also known as roundheads or spiny basslets, are a family, Plesiopidae, of fishes in the order Perciformes.
The longfin escolar, Scombrolabrax heterolepis, also known as the black mackerel, is a widespread but uncommon deep sea fish that presents some difficulties for taxonomy.
Longneck eels or neck eels are a family, Derichthyidae, of eels.
Lophichthys boschmai, also known as Arfura frogfish or Boschma's frogfish, is a species of Anglerfishes closely related to frogfish.
Loricariidae is the largest family of catfish (order Siluriformes), with 92 genera and just over 680 species to date, with new species being described each year.
The Lotidae are a family of cod-like fishes commonly known as lings or rocklings.
The louvar or luvar, Luvaris imperialis, is a species of perciform fish, the only extant species in the genus Luvaris and family Luvaridae.
The pikehead (Luciocephalus puncher) is a species of gourami native to the Malaya Peninsula, Sumatra, and Borneo.
Lumpsuckers or lumpfish are mostly small scorpaeniform marine fish of the family Cyclopteridae.
Snappers are a family of perciform fish, Lutjanidae, mainly marine, but with some members inhabiting estuaries, feeding in fresh water.
Macroudidae is a family of deep sea fish, a diverse and ecologically important group, which are part of the order of cod-like fish, the Gadiformes.
Manefishes are perciform fishes in the family Caristiidae, which today includes 19 extant species distributed in four genera.
A marlin is a fish from the family Istiophoridae, which includes about 10 species.
The Mastacembelidae are a family of fishes, known as the spiny eels.
Medusafishes are a family, Centrolophidae, of perciform fishes.
The megamouth shark (Megachasma pelagios) is a species of deepwater shark.
Melanonus is a genus of gadiform fishes containing just two species of cod-like marine fishes.
The moonfish of the genus Mene, the sole extant genus of the family Menidae, are disk-shaped fish which bear a vague resemblance to gourami, thanks to their thread-like pelvic fins.
Mercer's tusked silverside (Dentatherina merceri) is a species of fish.
Merlucciidae are a family of cod-like fish, including most hakes.
The Microdesmidae, the wormfishes and dartfishes, are a family of goby-like fishes in the order Gobiiformes.
The Microstomatidae (pencil smelts) are a family of marine smelts native to the Atlantic, Indian, and Pacific Oceans.
Mitsukurinidae is a family of sharks with one living genus, Mitsukurina, and five fossil genera: Anomotodon, Protoscapanorhynchus, Pseudoscapanorhynchus and Scapanorhynchus, and Woellsteinia, though some taxonomists consider Scapanorhynchus to be a synonym of Mitsukurina.
The Mochokidae are a family of catfishes (order Siluriformes) that are known as the squeakers and upside-down catfish (although not all species swim upside-down).
The mojarras are a family, Gerreidae, of fish in the order Perciformes.
The Molidae comprise the family of the molas or ocean sunfishes, unusual fish whose bodies come to an end just behind the dorsal and anal fins, giving them a "half-fish" appearance.
Pinecone fishes are small and unusual beryciform marine fish of the family Monocentridae.
Monodactylidae is a family of perciform bony fish commonly referred to as monos, moonyfishes or fingerfishes.
Monognathus, or onejaw, is the only genus of the family Monognathidae of deep-sea, eel-like fishes.
The mooneyes are a family, the Hiodontidae, of ray-finned fish comprising two living and three extinct species in the genus Hiodon.
The Moorish idol (Zanclus cornutus), is a marine fish species, the sole extant representative of the family Zanclidae (from the Greek ζαγκίος, zagkios, "oblique") in order Perciformes.
Moray eels, or Muraenidae, are a cosmopolitan family of eels.
The Moridae are a family of cod-like fishes, known as codlings, hakelings, and moras.
The Moringuidae are a small family of eels commonly known as spaghetti eels or worm eels, although the latter name is also shared with other families of eels.
The family Mormyridae, sometimes called "elephantfish" (more properly freshwater elephantfish), are freshwater fish in the order Osteoglossiformes native to Africa.
The Moronidae are a family of perciform fishes, commonly called the temperate basses, consisting of at least six freshwater, brackish water, and marine species.
Morwongs (also called butterfish, fingerfins, jackassfish, snappers, and moki) are perciform fishes comprising the family Cheilodactylidae.
The mullets or grey mullets are a family (Mugilidae) of ray-finned fish found worldwide in coastal temperate and tropical waters, and some species in fresh water.
The Muraenesocidae, or pike congers, are a small family of marine eels found worldwide in tropical and subtropical seas.
The Muraenolepididae is a family of cod-like fish, known as eel cods, found in southern oceans.
Myroconger is the only genus of eels, the thin eels, in the family Myrocongridae.
The naked-back knifefishes are a family (Gymnotidae) of knifefishes found only in fresh waters of Central America and South America.
Nandidae, the Asian leaffishes, are small freshwater fishes mostly native to south Asia, though with two species confined to Africa.
The numbfishes are a group of electric rays (order Torpediniformes) in the family Narcinidae.
Needlefish (family Belonidae) or long toms are piscivorous fishes primarily associated with very shallow marine habitats or the surface of the open sea.
Nematogenys inermis is a species of mountain catfish, the only extant species in the family Nematogenyiidae.
The Neoscopelidae (blackchins or neoscopelids) are a small family of deep-sea fish closely related to the lanternfish.
Neosebastidae, the gurnard scorpionfishes, is a family of scorpaeniform fishes found in the Indian and Pacific oceans.
The Neotropical silversides are a family, Atherinopsidae, of fishes in the order Atheriniformes.
The duckbill eels or witch eels are a family, Nettastomatidae, of eels.
Normanichthys crockeri, the mote sculpin, is a ray-finned fish, the only member of the family Normanichthyidae.
The northern lampreys (Petromyzontidae) are a family of lampreys.
The deep-sea spiny eels are a family, Notacanthidae, of fishes found worldwide below, and as deep as.
The surf sardines are a small family, Notocheiridae, of saltwater atheriniform fish found in tropical and temperate seas in the Pacific and Indian Oceans.
Notograptus is a genus of marine fish in subclass Actinopterygii and order Perciformes.
The family Notopteridae contains ten species of osteoglossiform (bony-tongued) fishes, commonly known as featherbacks and knifefishes.
Waryfishes are deep-sea aulopiform fishes in the small family Notosudidae.
The cod icefishes or notothens are the family Nototheniidae of acanthopterygian fishes.
Kurtus is a genus of perciform fishes, called the nurseryfishes, forehead brooders, or incubator fish, native to fresh, brackish and coastal marine waters ranging from India, through southeast Asia to New Guinea and northern Australia.
Oarfish are large, greatly elongated, pelagic lampriform fish belonging to the small family Regalecidae.
The Odacidae are a small family of fishes in the order Perciformes, commonly known as cales, and weed whitings.
Ogcocephalidae is a family of anglerfish specifically adapted for a benthic lifestyle of crawling about on the seafloor.
The Old World silversides are a family, Atherinidae, of fish in the order Atheriniformes.
Olyra is a genus of catfishes of the family Bagridae.
The dreamers are a family, Oneirodidae, of deep-sea anglerfishes in the order Lophiiformes.
Opahs (also commonly known as moonfish, sunfish (not to be confused with Molidae), kingfish, redfin ocean pan, and Jerusalem haddock) are large, colorful, deep-bodied pelagic lampriform fishes comprising the small family Lampridae (also spelled Lamprididae).
Ophichthidae is a family of fish in the order Anguilliformes, commonly known as the snake eels.
Opistognathidae, the jawfishes, are a family of fishes classified within the order Perciformes, suborder Percoidei.
Oplegnathus is currently the sole recognized genus in the knifejaw family (Oplegnathidae) of marine perciform fishes.
The oreos are a family, the Oreosomatidae, of marine fish.
Ostraciidae is a family of squared, bony fish belonging to the order Tetraodontiformes, closely related to the pufferfishes and filefishes.
Ostracoberyx is a genus of shellskin alfonsinos, the only recognized genus in the family Ostracoberycidae.
Oxynotus is a genus of sharks in the order Squaliformes, commonly known as the rough sharks.
Paddlefish (family Polyodontidae) are basal Chondrostean ray-finned fish.
Parabembras is a genus of sprat-like flatheads, the only genus in the family Parabembridae.
The Parabrotulidae, the false brotulas, are a small family of bathypelagic cusk eels that currently contains two genera.
Large-tooth flounders or sand flounders are a family, Paralichthyidae, of flounders.
Parascorpis typus, the Jutjaw, is a species of perciform fish, the only known member of its genus and family.
The Parascylliidae, or collared carpet sharks, are a family of sharks only found in shallow waters of the western Pacific.
Paraulopus is the only genus in the family Paraulopidae, a family of grinners in the order Aulopiformes.
The Parazenidae, the parazens, are a family of zeiform fishes found in the Atlantic and Pacific Oceans.
The Parodontidae are a family of fresh water fish of the order Characiformes.
Parrotfishes are a group of marine species found in relatively shallow tropical and subtropical oceans around the world.
The pearleyes are a family, Scopelarchidae, of aulopiform fishes, distinguished by their unique visual system, with two retinas in each eye.
Pearlfish are marine fish in the Carapidae family of ray-finned fishes.
The seamoths make up a family of fishes, the Pegasidae, within the order Gasterosteiformes.
The gulper eel (Eurypharynx pelecanoides) is a deep-sea fish rarely seen by humans, though it is occasionally caught in fishing nets.
Pentacerotidae or armorheads are a small family of fishes in the order Perciformes.
The Percidae are a family of perciform fish found in fresh and brackish waters of the Northern Hemisphere.
Percilia is a genus of perch-like fish in the Percichthyidae family.
The Percophidae, duckbills, are a family of percomorph fishes, from the order Trachiniformes, found in tropical and subtropical waters of the Atlantic and Indian Oceans and in the southwestern and southeastern Pacific.
Percopsidae is a family of fish in the order Percopsiformes, with one extant genus with two species, both endemic to North America, and two known fossil genera.
The priapum fishes are a family, Phallostethidae, of atheriniform fish native to freshwater and brackish habitats in southeast Asia.
The gunnels are a family, Pholidae, of marine fishes in the order Perciformes.
Pholidichthys is a genus of perciform fish which consists of two species of the tropical Pacific Ocean.
Lightfishes are small stomiiform fishes in the family Phosichthyidae). --> They are very small fishes found in oceans throughout the world: most species grow no longer than 10 cm, while those in the genus Vinciguerria only reach 4 cm or so. They make up for their small size with abundant numbers: Vinciguerria is thought — with the possible exception of Cyclothone — to be the most abundant genus of vertebrates. Deep-sea trawls of the Humboldt Current in the southeast Pacific have found that lightfishes make up 85% by mass of mesopelagic fishes, with Vinciguerria lucetia by far the most numerous species. They are bioluminescent fishes, possessing rows of photophores along their sides, with which they hunt planktonic invertebrates, especially krill.
The Phycidae are a family of hakes in the order Gadiformes.
The Pimelodidae, commonly known as the long-whiskered catfishes, are a family of catfishes (order Siluriformes).
The pirate perch (Aphredoderus sayanus) is a freshwater fish that commonly inhabits coastal waters along the east coast of the United States and the backwater areas of the Mississippi Valley.
The Platycephalidae are a family of marine fish, most commonly referred to as flatheads.
The tubeshoulders are a family, the Platytroctidae, of marine smelts.
Plectrogenium, is a genus of scorpaeniform fishes, the stinger flatheads, the only genus in the family Plectrogenidae.
Pleuronectidae, also known as righteye flounders, are a family of flounders.
The poachers are a family (Agonidae) of small, bottom-dwelling, cold-water marine fish.
The Poeciliidae are a family of freshwater fishes of the order Cyprinodontiformes, the tooth-carps, and include well-known live-bearing aquarium fish, such as the guppy, molly, platy, and swordtail.
Leaffishes are small freshwater fishes of the Polycentridae family, from South America.
Marine angelfish are perciform fish of the family Pomacanthidae.
Pomacentridae is a family of perciform fish, comprising the damselfishes and clownfishes.
Pomfrets are perciform fishes belonging to the family Bramidae.
Porcupinefish are fish belonging to the family Diodontidae (order Tetraodontiformes), also commonly called blowfish and, sometimes, balloonfish and globefish.
River stingrays or freshwater stingrays are Neotropical freshwater fishes of the Potamotrygonidae family in the order Myliobatiformes, one of the four orders of batoids, cartilaginous fishes related to sharks.
The pouched lamprey (Geotria australis) also known as wide-mouthed lamprey, is the only species in genus Geotria, which is in turn the only genus in the family Geotriidae.
The Priacanthidae, the bigeyes, are a family of 18 species of marine fishes.
The pricklebacks (also known as shannies) are a family, Stichaeidae, of fishes in the order Perciformes.The prickleback fish can also breathe oxygen.
The Prochilodontidae, or flannel-mouthed characins, are a small family of fishes found primarily in the northern half of South America, south to Paraguay and northern Argentina.
Profundulidae is a family of killifishes.
The finback catsharks are a small family, the Proscylliidae, of ground sharks.
Protopterus is the genus of four species of lungfish found in Africa.
The prowfish (Zaprora silenus) is a species of perciform marine fish found in the northern Pacific Ocean.
Pseudaphritis urvillii is the only species of fish in the family Pseudaphritidae and the genus Pseudaphritis.
The blue-eyes are a family of atheriniform fish, the Pseudomugilidae, related to the rainbowfishes.
The Pseudopimelodidae are a small family (about 40 species) of catfishes known as the bumblebee catfishes or dwarf marbled catfishes.
The Pseudotriakidae are a small family of ground sharks, belonging to the order Carcharhiniformes, containing the false catsharks (genera Pseudotriakis and Planonasus) and gollumsharks (genus ''Gollum'').
Pseudotrichonotus is a genus of fish in the family Pseudotrichonotidae native to the Indian and Pacific Ocean.
Psilorhynchus is a genus of fish in the family Psilorhynchidae native to South Asia.
The fish family Psychrolutidae contains the fatheads, fathead sculpins, or tadpole sculpins, including the blobfishes.
Pupfish are a group of small killifish belonging to ten genera of the family Cyprinodontidae of ray-finned fish.
Elassoma is a genus of freshwater fish, the only member of family Elassomatidae and suborder Elassomatoidei of order Perciformes.
The Queensland lungfish (Neoceratodus forsteri), also known as the Australian lungfish, Burnett salmon and barramunda, is a surviving member of the family Neoceratodontidae and order Ceratodontiformes.
The quillfish, Ptilichthys goodei, is a species of perciform fish, the only species in the genus Ptilichthys and family Ptilichthyidae.
Rabbitfishes or spinefoots are perciform fishes in the family Siganidae.
The tapertail, Radiicephalus elongatus, is a species of marine fish found in the central and eastern Atlantic and eastern Pacific.
The ragfish (Icosteus aenigmaticus) is a ray-finned fish of the northern Pacific Ocean; although a perciform, its skeleton is mostly cartilage, and the larvae have pelvic fins that disappear as they mature.
The rainbowfish are a family (Melanotaeniidae) of small, colourful, freshwater fish found in northern and eastern Australia, New Guinea, islands in Cenderawasih Bay, and the Raja Ampat Islands in Indonesia.
The red velvetfish (Gnathanacanthus goetzeei) is a marine scorpaeniform fish of the inshore waters of western and southern Australia.
The redmouth whalefishes are two species of deep-sea whalefishes in the genus Rondeletia, the only genus in the family Rondeletiidae.
The remoras, sometimes called suckerfish, are a family (Echeneidae) of ray-finned fish in the order Perciformes.
Requiem sharks are sharks of the family Carcharhinidae in the order Carcharhiniformes, containing migratory, live-bearing sharks of warm seas (sometimes of brackish or fresh water) such as the spinner shark, the blacknose shark, the blacktip shark, the grey reef shark, and the blacktip reef shark.
The Retropinnidae are a family of bony fishes that contains the Southern Hemisphere smelts and graylings.
Sand knifefish are freshwater electric fish of the Rhamphichthyidae family, from freshwater habitats in South America.
The Rhinochimaeridae, commonly known as long-nosed chimaeras, are a family of cartilaginous fish.
The Rhyacichthyidae or loach gobies are a small family of perciform fish in two genera and three species.
The ribbonfish are any lampriform fishes in the family Trachipteridae.
The ricefishes are a family (Adrianichthyidae) of small ray-finned fish that are found in fresh and brackish waters from India to Japan and out into the Malay Archipelago, most notably Sulawesi (where the Lake Poso and Lore Lindu species are known as buntingi).
Ridgeheads, also known as bigscales, are a family (Melamphaidae, from the Greek melanos and amphi) of small, deep-sea stephanoberyciform fish.
Ronquils (sometimes spelt ronchils) are perciform marine fish of the small family Bathymasteridae.
The roosterfish, Nematistius pectoralis, is a game fish found in the warmer waters of the East Pacific from Baja California to Peru.
Sabertooth or sabretooth fish are small, fierce-looking deep-sea aulopiform fish comprising the family Evermannellidae.
Saccopharynx is a genus of deep-sea eel-like fishes with large mouths, distensible stomachs and long, scaleless bodies.
Icefishes or noodlefishes are a family, the Salangidae, of osmeriform fish, related to the smelts.
Salmonidae is a family of ray-finned fish, the only living family currently placed in the order Salmoniformes.
The Samaridae are a family, the crested flounders, of small flatfishes native to the Indo-Pacific.
A sand lance or sandlance is a fish belonging to the family Ammodytidae.
Sand sharks, also known as sand tiger sharks, grey nurse sharks or ragged tooth sharks, are mackerel sharks of the family Odontaspididae.
Sand stargazers are blennioids; perciform marine fish of the family Dactyloscopidae.
The sandburrowers or simply burrowers are a family, Creediidae, of fishes in the order Perciformes.
The sandperches are a family, Pinguipedidae, of fishes in the percomorph order Trachniniformes.
Sawfishes, also known as carpenter sharks, are a family of rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw.
A sawshark or saw shark is a member of a shark order (Pristiophoriformes) bearing a unique long, saw-like rostrum (snout or bill) edged with sharp teeth, which they use to slash and disable their prey.
Sawtooth eels are a family, Serrivomeridae, of eels found in temperate and tropical seas worldwide.
The scats are a small family, Scatophagidae, of fishes in the order Perciformes.
Schilbeidae is a family of catfishes native to Africa and Asia.
Schindleria is a genus of marine fish.
The Sciaenidae are a family of fish commonly called drums or croakers in reference to the repetitive throbbing or drumming sounds they make.
Scoloplax is the only genus in the catfish (order Siluriformes) family Scoloplacidae, the spiny dwarf catfishes.
Sauries are fish of the family Scomberesocidae.
The Scombridae family of the mackerels, tunas, and bonitos includes many of the most important and familiar food fishes.
The Scophthalmidae are a family of flatfish found in the North Atlantic Ocean, Baltic Sea, Mediterranean Sea, and Black Sea.
Scorpaenidae (also known as the scorpionfish) are a family of mostly marine fish that includes many of the world's most venomous species.
The sea chubs are a family, Kyphosidae, of fishes in the order Perciformes native to the Atlantic, Indian and Pacific Oceans usually close to shore in marine waters.
Sea ravens are a family, the Hemitripteridae, of scorpaeniform fish.
The sea toads and coffinfishes are a family of deep-sea anglerfishes known as the Chaunacidae.
Sebastidae is a family of marine fish in the order Scorpaeniformes.
The Serranidae are a large family of fishes belonging to the order Perciformes.
Setarchidae, the deep-sea bristly scorpionfishes, is a small family of deep-sea scorpaeniform fishes.
The shark catfishes form the family Pangasiidae.
The Sillaginidae, commonly known as the smelt-whitings, whitings, sillaginids, sand borers and sand-smelts, are a family of benthic coastal marine fish in the order Perciformes.
Siluridae is the nominate family of catfishes in the order Siluriformes.
Sisoridae is a family of catfishes.
The sixgill stingray (Hexatrygon bickelli) is a species of stingray and the only extant member of the family Hexatrygonidae.
Skates are cartilaginous fish belonging to the family Rajidae in the superorder Batoidea of rays.
Slimeheads, also known as roughies and redfish, are mostly small, exceptionally long-lived, deep-sea beryciform fish constituting the family Trachichthyidae (derived from the Greek trachys - "rough" and ichthys - "fish").
Smelts are a family of small fish, the Osmeridae, found in the Atlantic and Pacific Oceans.
Anacanthobatidae, the smooth skates or leg skates, are a family of skate found at depths below in the Indian, Pacific and Atlantic oceans.
The Liparidae, commonly known as snailfish or sea snails, are a family of scorpaeniform marine fishes.
The snakeheads are members of the freshwater perciform fish family Channidae, native to parts of Africa and Asia.
Snipe eels are a family, Nemichthyidae, of eels that consists of nine species in three genera.
The true soles are a family, Soleidae, of flatfishes.
Solenostomus, also known as ghost pipefishes, false pipefishes or tubemouth fishes, is a genus of fishes in the order Syngnathiformes.
The South American lungfish (Lepidosiren paradoxa) is the single species of lungfish found in swamps and slow-moving waters of the Amazon, Paraguay, and lower Paraná River basins in South America.
The southern (or armless) flounders are a small family, Achiropsettidae, of flounders found in Antarctic and sub-Antarctic waters.
The southern sandfishes are a family, Leptoscopidae, of perciform fishes inhabiting the Indian and Pacific Ocean coastal waters of Australia and New Zealand.
The Sparidae are a family of fish in the order Perciformes, commonly called sea breams and porgies.
The spikefishes (family Triacanthodidae) are ray-finned fishes related to the pufferfishes and triggerfishes.
The spiny turbots are a family, Psettodidae, of relatively large, primitive flatfish found in the tropical waters of the east Atlantic and Indo-Pacific.
Spinyfins are a family, Diretmidae, of beryciform fishes.
The splendid perches are a small family, Callanthiidae (about 14 species), of marine fishes in the order Perciformes.
The Squalidae, also called dogfish sharks or spiny dogfishes, are a family of sharks in the order Squaliformes.
The squaretails are a genus, Tetragonurus, of perciform fishes, the only genus in the family Tetragonuridae.
The stargazers are a family, Uranoscopidae, of perciform fish that have eyes on top of their heads (hence the name).
Stephanoberycidae, the pricklefishes are a family of fishes in the order Stephanoberyciformes.
The marine hatchetfishes or deep-sea hatchetfishes as well as the related bottlelights, pearlsides and constellationfishes are small deep-sea ray-finned fish of the stomiiform family Sternoptychidae.
The Gasterosteidae are a family of fish including the sticklebacks.
Stomiidae is a family of deep-sea ray-finned fish, including the barbeled dragonfishes.
The stream catfishes comprise the family Akysidae of catfishes.
The family Stromateidae of butterfish contains 15 species of fish in three genera.
Sturgeon is the common name for the 27 species of fish belonging to the family Acipenseridae.
Sundasalanx, the Sundaland noodlefishes, is the only genus in the family Sundasalangidae which belongs to the same order as the herrings and their relatives.
The surfperches are a family of perciform fishes, Embiotocidae.
The swamp eels (also written "swamp-eels") are a family (Synbranchidae) of freshwater eel-like fishes of the tropics and subtropics.
Sweepers are small, tropical marine (occasionally brackish) perciform fish of the family Pempheridae.
Swordfish (Xiphias gladius), also known as broadbills in some countries, are large, highly migratory, predatory fish characterized by a long, flat bill.
Symphysanodon, also known as the slopefishes, is a genus of small marine fishes.
Synanceiidae is a family of Actinopterygii, ray-finned fish, found in the Indo-Pacific oceans.
The Syngnathidae is a family of fish which includes the seahorses, the pipefishes, the pipehorses, and the leafy, ruby, and weedy seadragons.
Synodontidae or lizardfishes(or typical lizardfish to distinguish them from the Bathysauridae and Pseudotrichonotidae) are benthic (bottom-dwelling) marine and estuarine bony fishes that comprise the aulopiform fish family, a diverse order of marine ray-finned fish consisting of some 15 extant and several prehistoric families.
Tarpons are large air-breathing fish of the genus Megalops; one species is native to the Atlantic, and the other to the Indo-Pacific Seas.
Telescopefish are small, deep-sea aulopiform fish comprising the small family Giganturidae.
The sail-fin silversides are a family of atheriniform fish, the Telmatherinidae, inhabiting fresh and brackish water.
The members of the family Percichthyidae are known as the temperate perches.
Grunters or tigerperches are fishes in the family Terapontidae (also spelled Teraponidae, Theraponidae or Therapontidae).
Tetrabrachiidae, the four-armed frogfishes, is a family of anglerfishes found in relatively shallow waters of the eastern Indian Ocean and western Pacific Ocean from Indonesia and New Guinea to Australia.
The Tetraodontidae are a family of primarily marine and estuarine fish of the order Tetraodontiformes.
The waspfishes are a family, the Tetrarogidae, of scorpaeniform fishes native to the Indian Ocean and the West Pacific.
Thaumatichthyidae, the wolftrap anglers, is a small family of deep-sea anglerfishes, containing two genera and eight species found in all oceans.
The thornfishes are a family, Bovichtidae, of fishes in the order Perciformes.
Threadfins are silvery grey perciform marine fish of the family Polynemidae.
The threadfin breams consist of the family Nemipteridae within the order Perciformes.
Threefin or triplefin blennies are blennioids, small perciform marine fish of the family Tripterygiidae.
Triodon macropterus, also known as the threetooth puffer, is a tetraodontiform fish, the only living species in the genus Triodon and family Triodontidae.
Thresher sharks are large lamniform sharks of the family Alopiidae found in all temperate and tropical oceans of the world; the family contains four species, all within the genus Alopias.
Tilefishes are mostly small perciform marine fish comprising the family Malacanthidae.
The Grammicolepididae are a small family of deep-sea fishes, called tinselfishes due to their silvery color.
Tonguefishes are flatfishes in the family Cynoglossidae.
The toothed seadevil, spiny seadevil or netbeard seadevil, (Neoceratias spinifer), is a rarely seen deep-sea anglerfish found in the mesopelagic and bathypelagic zones of the western central Pacific Ocean.
The family Torpedinidae contains 22 species of electric rays or torpedoes, flat cartilaginous fishes that produce electricity as a defense and feeding mechanism.
Triacanthidae, commonly known as triplespines or tripodfishes, is a family of Indo-Pacific fishes.
The Trichodontidae, or sandfishes, are a small family of fishes from the order Trachiniformes that occur in the North Pacific.
The Trichomycteridae are a family of catfishes (order Siluriformes) commonly known as the pencil or parasitic catfishes.
Trichonotus is a genus of marine perciform fishes.
Triggerfishes are about 40 species of often brightly colored fish of the family Balistidae.
The Triglidae, commonly known as sea robins or gurnard, are a family of bottom-feeding scorpaeniform fish.
Lobotes is a genus of perciform fishes known as the tripletails native to subtropical and tropical waters in all oceans.
The trumpetfishes are three species of highly specialized, tubular-elongated marine fishes in the genus Aulostomus, of the monogeneric family Aulostomidae.
The tube-eye or thread-tail, Stylephorus chordatus, is a deep-sea fish, the only fish in the genus Stylephorus and family Stylephoridae.
The Umbridae (mudminnows) are a family of Actinopterygii, ray-finned fish that inhabit freshwater environments in temperate regions across the Northern Hemisphere.
The Urolophidae are a family of rays in the order Myliobatiformes, commonly known as stingarees or round stingrays.
Valencia is the only genus in the family Valenciidae.
Sailfin moonfishes are a small family, Veliferidae, of lampriform fishes found in the Indian and western Pacific Oceans.
The velvet whalefish (Barbourisia rufa) is a deep-sea whalefish, the sole known member of its family Barbourisiidae.
Little velvetfishes or simply velvetfishes are a family, the Aploactinidae, of scorpaeniform fishes.
The viviparous brotulas form a family, the Bythitidae, of ophidiiform fishes.
Weevers (or weeverfish) are 9 extant species of fishes of family Trachinidae, order Trachiniformes, part of the Percomorpha clade.
The whale shark (Rhincodon typus) is a slow-moving, filter-feeding carpet shark and the largest known extant fish species.
The whipnose anglers are a family, Gigantactinidae, of deep-sea anglerfishes.
The whiptail stingrays are a family, the Dasyatidae, of rays in the order Myliobatiformes.
Wobbegong is the common name given to the 12 species of carpet sharks in the family Orectolobidae.
The wolf herrings are a family (Chirocentridae) of two marine species of ray-finned fish related to the herrings.
The wrasses are a family, Labridae, of marine fish, many of which are brightly colored.
The wreckfish are a family, Polyprionidae, of perciform fish.
Collared wrigglers are perciform fishes in the family Xenisthmidae.
Zaniolepis is a genus of scorpaeniform fish native to the eastern Pacific Ocean.
The zebra shark (Stegostoma fasciatum) is a species of carpet shark and the sole member of the family Stegostomatidae.
The Zeidae (named after Zeus, the supreme god of Greek mythology) are a family of large, showy, deep-bodied zeiform marine fish—the "true dories".
The Zenionidae are a family of large, showy, deep-bodied zeiform marine fish.