There are 576 fish that start with the letter W, from Wabang Whitefish to Wrymouth. Below you will find them listed alphabetically along with some general information about each. Click the toggle view buttons in the top right corner to switch between the card and the table view.
For each item you will find the following information
Order: The subclass the fish belongs to
Habitat: The places or type of weather the fish lives in
Scientific name: The designation that scientists use to catalog the species
Name: Wabang Whitefish
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Coregonus clupeaformis
Name: Wabasca Cisco
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Coregonus artedi
Name: Wabasca Minnow
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Mylocheilus caurinus
Name: Wabasca Perch
Order: Perciformes
Habitat: Freshwater
Scientific name: Perca flavescens
Name: Wagasi
Order: Clupeiformes
Habitat: Marine/Brackish
Scientific name: Pellona ditchela
Name: Wagner's Tuna
Order: Scombriformes
Habitat: Marine – Indian Ocean
Scientific name: Thunnus wagneri
Name: Wahoo
Order: Scombriformes
Habitat: Marine
Scientific name: Acanthocybium solandri
Name: Wahoo Scad
Order: Carangiformes
Habitat: Marine
Scientific name: Decapterus macarellus
Name: Wai-Wai Grunt
Order: Perciformes
Habitat: Marine/Brackish
Scientific name: Pomadasys crocro
Name: Waivers' Basslet
Order: Perciformes
Habitat: Marine – Caribbean
Scientific name: Lipogramma waversi
Name: Wakko Shark
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Carcharhinus amblyrhynchos
Name: Walakpa Char
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Salvelinus malma
Name: Walcott's Congereel
Order: Anguilliformes
Habitat: Marine – Pacific Ocean
Scientific name: Conger walcotti
Name: Waldman's Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Symphodus melanocercus
Name: Walford's Hake
Order: Gadiformes
Habitat: Marine
Scientific name: Macruronus novaezelandiae
Name: Walford's Scorpionfish
Order: Scorpaeniformes
Habitat: Marine – Eastern Pacific
Scientific name: Scorpaena walfordi
Name: Walking Batfish
Order: Lophiiformes
Habitat: Benthic (tropical/subtropical)
Scientific name: Ogcocephalidae
Name: Walking Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Clarias batrachus
Name: Walking Shark
Order: Orectolobiformes
Habitat: Marine
Scientific name: Hemiscyllium ocellatum
Name: Wallace's Mudskipper
Order: Gobiiformes
Habitat: Brackish/Marine
Scientific name: Periophthalmus waltoni
Name: Wallace's Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Corythoichthys walacei
Name: Wallach's Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Wallago attu
Name: Wallago Attu
Order: Siluriformes
Habitat: Freshwater (Asia)
Scientific name: Wallago attu
Name: Waller's Anglerfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Lophius walleri
Name: Waller's Moray
Order: Anguilliformes
Habitat: Marine – Indo-Pacific
Scientific name: Gymnothorax walleri
Name: Walleye
Order: Perciformes
Habitat: Freshwater
Scientific name: Sander vitreus
Name: Walleye Pollock
Order: Gadiformes
Habitat: Marine
Scientific name: Gadus chalcogrammus
Name: Wallich's Shark
Order: Carcharhiniformes
Habitat: Marine – Indian Ocean
Scientific name: Carcharhinus wallichi
Name: Walnut Blenny
Order: Blenniiformes
Habitat: Marine – Mediterranean
Scientific name: Parablennius incognitus
Name: Walrus Fish
Order: Perciformes
Habitat: Coastal (Australia)
Scientific name: Gnathanacanthidae
Name: Walsh's Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogon walshii
Name: Walsh's Sculpin
Order: Scorpaeniformes
Habitat: Freshwater
Scientific name: Cottus walshi
Name: Walter's Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Pleuronichthys walteri
Name: Walters' Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Gobiodon Waltersi
Name: Walu
Order: Scombriformes
Habitat: Marine – Tropical/Subtropical Oceans
Scientific name: Acanthocybium solandri
Name: Wami Tilapia
Order: Cichliformes
Habitat: Freshwater (East Africa)
Scientific name: Oreochromis urolepis
Name: Wamino Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Amblyeleotris wamino
Name: Wanda's Sardine
Order: Clupeiformes
Habitat: Marine
Scientific name: Sardinella wandasi
Name: Wanderman's Pipefish
Order: Syngnathiformes
Habitat: Marine – Indo-Pacific
Scientific name: Corythoichthys wandermanus
Name: Wane-Wing Flyingfish
Order: Beloniformes
Habitat: Marine
Scientific name: Cypselurus hexazona
Name: Wang's Scabbardfish
Order: Perciformes
Habitat: Marine – Western Pacific
Scientific name: Eupleurogrammus wangii
Name: Wapiti Sculpin
Order: Scorpaeniformes
Habitat: Freshwater
Scientific name: Cottus wapiti
Name: Wapoga Glassfish
Order: Perciformes
Habitat: Freshwater (New Guinea)
Scientific name: Ambassidae
Name: War Paint Blenny
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Meiacanthus atrodorsalis
Name: Warbonnet Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Chirolophis nugator
Name: Warburton's Moray
Order: Anguilliformes
Habitat: Marine – Indo-Pacific
Scientific name: Gymnothorax warburtonianus
Name: Ward's Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Ecsenius wardi
Name: Ward's Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Gobiodon wardi
Name: Warden's Basslet
Order: Perciformes
Habitat: Marine – Western Atlantic
Scientific name: Liopropoma wardeni
Name: Warden's Triplefin
Order: Blenniiformes
Habitat: Marine
Scientific name: Norfolkia wardi
Name: Wardi's Frogfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Antennarius wardi
Name: Warfaring Goby
Order: Gobiiformes
Habitat: Freshwater – Southeast Asia
Scientific name: Odonteleotris warfaring
Name: Warianga Scat
Order: Perciformes
Habitat: Brackish/Marine (Indo-Pacific)
Scientific name: Scatophagidae
Name: Warihine Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogon warihinensis
Name: Warmouth
Order: Perciformes
Habitat: Freshwater
Scientific name: Lepomis gulosus
Name: Warpaint Frogfish
Order: Lophiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Antennarius warpaint
Name: Warrego Perch
Order: Perciformes
Habitat: Freshwater (Australia)
Scientific name: Macquaria ambigua
Name: Warren's Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Corythoichthys waitei
Name: Warrior Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Stonogobiops nematodes
Name: Wart Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Acentrogobius viridipunctatus
Name: Wart Hake
Order: Gadiformes
Habitat: Marine – Eastern Atlantic
Scientific name: Macruronus maderensis
Name: Wart Snapper
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Lutjanidae
Name: Wart-Face Sole
Order: Pleuronectiformes
Habitat: Marine – Eastern Atlantic
Scientific name: Solea vulgaris
Name: Wart-Faced Blenny
Order: Blenniiformes
Habitat: Marine – Eastern Pacific
Scientific name: Corengobius revellei
Name: Warthead Sculpin
Order: Scorpaeniformes
Habitat: Marine – Arctic/North Pacific
Scientific name: Artediellus scaber
Name: Wartskin Angler
Order: Lophiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Antennarius maculatus
Name: Warty Angler
Order: Lophiiformes
Habitat: Marine
Scientific name: Antennarius maculatus
Name: Warty Blenny
Order: Blenniiformes
Habitat: Coastal (South Africa)
Scientific name: Clinus acuminatus
Name: Warty Combtooth Blenny
Order: Blenniiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Salarias wartyi
Name: Warty Frogfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Antennarius verrucosus
Name: Warty Prowfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Neopataecus waterhousei
Name: Wartyhead Sculpin
Order: Scorpaeniformes
Habitat: Freshwater
Scientific name: Cottus cognatus
Name: Waryfish
Order: Aulopiformes
Habitat: Marine
Scientific name: Scopelarchus analis
Name: Wasabi Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Exyrias ferrarisi
Name: Washigami Filefish
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Paramonacanthus choirocephalus
Name: Washington Skate
Order: Rajiformes
Habitat: Marine
Scientific name: Raja washingtoniensis
Name: Washington State Whitefish
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Prosopium coulteri
Name: Wasserman's Blenny
Order: Blenniiformes
Habitat: Marine (Western Pacific)
Scientific name: Ecsenius wassii
Name: Watauga Darter
Order: Perciformes
Habitat: Freshwater
Scientific name: Etheostoma perlongum
Name: Watchman Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Cryptocentrus cinctus
Name: Water Cobra
Order: Anguilliformes
Habitat: Marine (Indo-Pacific)
Scientific name: Moringuidae
Name: Water Cusk-eel
Order: Ophidiiformes
Habitat: Marine
Scientific name: Ophidion robinsi
Name: Water Flounder
Order: Pleuronectiformes
Habitat: Brackish/Marine (Europe)
Scientific name: Platichthys flesus
Name: Water Pigmy Goby
Order: Gobiiformes
Habitat: Marine (Western Pacific)
Scientific name: Eviota aquatica
Name: Water Wolf
Order: Perciformes
Habitat: Freshwater (South America)
Scientific name: Hoplias malabaricus
Name: Water-Holding Crab-Eater
Order: Perciformes
Habitat: Freshwater
Scientific name: Macrognathus aral
Name: Waterloo Killifish
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Nothobranchius wattersi
Name: Watt's Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Cirrhilabrus wattsi
Name: Wavetail Basslet
Order: Perciformes
Habitat: Marine
Scientific name: Pseudochromis fuscus
Name: Wavy Goby
Order: Gobiiformes
Habitat: Brackish/Marine (Mediterranean/Black Sea)
Scientific name: Gobius ophiocephalus
Name: Wavy Grubfish
Order: Trachiniformes
Habitat: Marine
Scientific name: Parapercis undulata
Name: Wavy Razorfish
Order: Perciformes
Habitat: Marine
Scientific name: Iniistius undulatus
Name: Wavyband Drummer
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Kyphosus vaigiensis
Name: Wavyline Conger
Order: Anguilliformes
Habitat: Marine
Scientific name: Conger oceanicus
Name: Wavyline Grunt
Order: Perciformes
Habitat: Marine
Scientific name: Plectorhinchus undulatus
Name: Wavyline Snapper
Order: Perciformes
Habitat: Marine
Scientific name: Lutjanus rivulatus
Name: Wavyline Triplefin
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Enneapterygius clarkae
Name: Wayward Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Plagiotremus laudandus
Name: Weasel Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Petroscirtes variabilis
Name: Weasel Shark
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Paragaleus pectoralis
Name: Weather Loach
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Misgurnus anguillicaudatus
Name: Weaver Fish
Order: Perciformes
Habitat: Marine
Scientific name: Trachinus draco
Name: Weaver's Needlefish
Order: Beloniformes
Habitat: Marine/Brackish
Scientific name: Strongylura marina
Name: Web-foot Goby
Order: Gobiiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Trypauchenichthys tentaculatus
Name: Webb's Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogon webbi
Name: Webbed Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Coryphopterus glaucofraenum
Name: Weber's Anchovy
Order: Clupeiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Stolephorus weberi
Name: Weber's Flyingfish
Order: Beloniformes
Habitat: Marine (Indo-Pacific)
Scientific name: Cheilopogon weberi
Name: Weber's Goby
Order: Gobiiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Gobiopsis weberi
Name: Weber's Pipefish
Order: Syngnathiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Corythoichthys weberi
Name: Weber's Shark
Order: Carcharhiniformes
Habitat: Marine (Western Pacific)
Scientific name: Carcharhinus weberi
Name: Weber's Silverside
Order: Atheriniformes
Habitat: Marine (Indo-Pacific)
Scientific name: Atherinomorus weberi
Name: Wedge Triggerfish
Order: Tetraodontiformes
Habitat: Marine – Eastern Pacific
Scientific name: Sufflamen verres
Name: Wedgenose Conger
Order: Anguilliformes
Habitat: Marine – Western Atlantic
Scientific name: Conger oceanicus
Name: Wedgetail Bluefin Trevally
Order: Carangiformes
Habitat: Marine – Indo-Pacific
Scientific name: Caranx coeruleopinnatus
Name: Weed Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Heterostichus rostratus
Name: Weedfish
Order: Perciformes
Habitat: Marine
Scientific name: Heteroclinus whiteleggii
Name: Weedy Scorpionfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Rhinopias aphanes
Name: Weedy Seadragon
Order: Syngnathiformes
Habitat: Marine
Scientific name: Phyllopteryx taeniolatus
Name: Week's Perch
Order: Perciformes
Habitat: Freshwater – North America
Scientific name: Percina weeksii
Name: Weeping Toadfish
Order: Batrachoidiformes
Habitat: Marine – Western Atlantic
Scientific name: Opsanus beta
Name: Weheli Goby
Order: Gobiiformes
Habitat: Freshwater (New Guinea)
Scientific name: Redigobius balteatops
Name: Weimariners Anglerfish
Order: Lophiformes
Habitat: Marine
Scientific name: Chaunacops coloratus
Name: Weiss' Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Trimmatom weissi
Name: Welander's Goby
Order: Gobiiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Trimma welanderi
Name: Welander's Hake
Order: Gadiformes
Habitat: Marine – Eastern Pacific
Scientific name: Merluccius welanderi
Name: Welch's Basslet
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Symphysanodon welchi
Name: Weldon's Loach
Order: Cypriniformes
Habitat: Freshwater (Asia)
Scientific name: Schistura weldoni
Name: Weldon's Surgeonfish
Order: Acanthuriformes
Habitat: Marine
Scientific name: Acanthurus weldoni
Name: Well's Spinedace
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Lepidomeda mollis
Name: Well-Spotted Loach
Order: Cypriniformes
Habitat: Freshwater (Southeast Asia)
Scientific name: Acanthopsoides rothenbergae
Name: Well-spotted Catshark
Order: Carcharhiniformes
Habitat: Marine – Western Atlantic
Scientific name: Scyliorhinus retifer
Name: Weller's Wrasse
Order: Perciformes
Habitat: Marine – Western Atlantic
Scientific name: Halichoeres welleri
Name: Wells' Blenny
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Ecsenius welnsi
Name: Wells' Triplefin
Order: Blenniiformes
Habitat: Marine – Western Pacific
Scientific name: Enneapterygius wellsii
Name: Welsh's Pipefish
Order: Syngnathiformes
Habitat: Marine – Western Atlantic
Scientific name: Syngnathus welshii
Name: Welshman's Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Gobius cobitis
Name: Welted Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Parablennius gattorugine
Name: Wemer's Sandperch
Order: Trachiniformes
Habitat: Marine
Scientific name: Parapercis wemerorum
Name: Wenman Island Ray
Order: Myliobatiformes
Habitat: Marine (Eastern Pacific)
Scientific name: Urobatis wenmani
Name: Wenman Moray
Order: Anguilliformes
Habitat: Marine – Eastern Pacific
Scientific name: Gymnothorax shaoi
Name: Wentzel's Toadfish
Order: Batrachoidiformes
Habitat: Marine – Western Atlantic
Scientific name: Batrachoides wentzelii
Name: Wermuth's Cichlid
Order: Cichliformes
Habitat: Freshwater
Scientific name: Tilapia wermuthensis
Name: Werner's Triggerfish
Order: Tetraodontiformes
Habitat: Marine – Western Pacific
Scientific name: Sufflamen werneri
Name: Wesel's Cichlid
Order: Cichliformes
Habitat: Freshwater
Scientific name: Cichla orinocensis
Name: West African Croaker
Order: Perciformes
Habitat: Marine
Scientific name: Pseudotolithus senegalensis
Name: West African Lungfish
Order: Ceratodontiformes
Habitat: Freshwater
Scientific name: Protopterus annectens
Name: West African Pilchard
Order: Clupeiformes
Habitat: Marine (West Africa)
Scientific name: Sardinella maderensis
Name: West African Sawfish
Order: Rajiformes
Habitat: Marine/Brackish/Freshwater
Scientific name: Pristis pristis
Name: West African Tonguefish
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Cynoglossus senegalensis
Name: West Australian Salmon
Order: Perciformes
Habitat: Coastal (Australia)
Scientific name: Arripis trutta
Name: West Coast Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Pleuronectes vetulus
Name: West Coast Seabream
Order: Spariformes
Habitat: Marine – Australia
Scientific name: Acanthopagrus butcheri
Name: West Indian Ocean Coelacanth
Order: Coelacanthiformes
Habitat: Marine
Scientific name: Latimeria chalumnae
Name: West Pacific Goby
Order: Gobiiformes
Habitat: Marine – Western Pacific
Scientific name: Obliquogobius megalops
Name: West Slope Cutthroat Trout
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Oncorhynchus clarkii lewisi
Name: West Slope Sculpin
Order: Scorpaeniformes
Habitat: Freshwater – North America
Scientific name: Cottus confusus
Name: Westbourne Goby
Order: Gobiiformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Didogobius wirtzi
Name: Western Australian Shark
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Carcharhinus obscurus
Name: Western Banana Shrimp
Order: Decapoda?
Habitat: Marine (Indo-Pacific)
Scientific name: Penaeus merguiensis
Name: Western Barred Grunter
Order: Perciformes
Habitat: Freshwater (Australia)
Scientific name: Amniataba percoides
Name: Western Bass
Order: Perciformes
Habitat: Freshwater
Scientific name: Micropterus salmoides
Name: Western Basslet
Order: Perciformes
Habitat: Marine – Western Atlantic
Scientific name: Symphysanodon occidentalis
Name: Western Bay Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Hypsoblennius jenkinsi
Name: Western Bay Goby
Order: Gobiiformes
Habitat: Brackish/Marine (Australia)
Scientific name: Favonigobius lateralis
Name: Western Blacknose Dace
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Rhinichthys atratulus
Name: Western Blacktip Shark
Order: Carcharhiniformes
Habitat: Marine – Western Australia
Scientific name: Carcharhinus coatesi
Name: Western Blue Tang
Order: Perciformes
Habitat: Marine – Eastern Pacific
Scientific name: Acanthurus triostegus
Name: Western Bluegill
Order: Perciformes
Habitat: Freshwater
Scientific name: Lepomis macrochirus
Name: Western Bonytail
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Gila elegans
Name: Western Brook Lamprey
Order: Petromyzontiformes
Habitat: Freshwater
Scientific name: Lampetra richardsoni
Name: Western Butterfish
Order: Perciformes
Habitat: Coastal (Northeast Pacific)
Scientific name: Pholis ornata
Name: Western Carp Gudgeon
Order: Gobiiformes
Habitat: Freshwater
Scientific name: Hypseleotris galli
Name: Western Catfish
Order: Siluriformes
Habitat: Freshwater (Australia)
Scientific name: Tandanus bostocki
Name: Western Cavefish
Order: Percopsiformes
Habitat: Freshwater (North America)
Scientific name: Typhlichthys subterraneus
Name: Western Chiselmouth
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Acrocheilus alutaceus
Name: Western Clingfish
Order: Gobiesociformes
Habitat: Marine – Eastern Atlantic
Scientific name: Lepadogaster lepadogaster
Name: Western Conger Eel
Order: Anguilliformes
Habitat: Marine (Eastern Atlantic/Mediterranean)
Scientific name: Conger conger
Name: Western Creek Chubsucker
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Erimyzon tenuis
Name: Western Creeper
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Margaritifera falcata
Name: Western Cryptic Goby
Order: Gobiiformes
Habitat: Marine (Indopacific)
Scientific name: Cryptocentrus tentaculatus
Name: Western Cuvier
Order: Perciformes
Habitat: Marine (Worldwide)
Scientific name: Cuvierina columnifera
Name: Western Deepwater Cardinalfish
Order: Perciformes
Habitat: Marine – Western Pacific
Scientific name: Apogon lachneri
Name: Western Eel
Order: Anguilliformes
Habitat: Freshwater/Marine – Australia
Scientific name: Anguilla australis occidentalis
Name: Western Flagtail
Order: Perciformes
Habitat: Marine/Brackish/Freshwater
Scientific name: Kuhlia marginata
Name: Western Flathead
Order: Perciformes
Habitat: Marine (Western Australia)
Scientific name: Platycephalus westraliae
Name: Western Four-eyed Fish
Order: Cyprinodontiformes
Habitat: Brackish/Freshwater (Central America)
Scientific name: Anableps dowi
Name: Western Gambusia
Order: Cyprinodontiformes
Habitat: Freshwater (North America)
Scientific name: Gambusia affinis
Name: Western Gar
Order: Beloniformes
Habitat: Freshwater (North America)
Scientific name: Lepisosteus occidentalis
Name: Western Gillaroo
Order: Salmoniformes
Habitat: Freshwater (Ireland)
Scientific name: Salmo stomachicus
Name: Western Gobbleguts
Order: Perciformes
Habitat: Marine – Australia
Scientific name: Apogon rueppellii
Name: Western Gobbler
Order: Perciformes
Habitat: Marine
Scientific name: Echeneis naucrates
Name: Western Goby
Order: Gobiiformes
Habitat: Marine (Eastern Atlantic/Mediterranean)
Scientific name: Gobius cobitis
Name: Western Grey Mullet
Order: Mugiliformes
Habitat: Brackish/Marine (Worldwide)
Scientific name: Mugil cephalus
Name: Western Gudgeon
Order: Gobiiformes
Habitat: Freshwater/Brackish (Central America)
Scientific name: Gobionellus occidentalis
Name: Western Gurnard
Order: Scorpaeniformes
Habitat: Marine – Eastern Atlantic
Scientific name: Trigla lyra
Name: Western Hagfish
Order: Myxiniformes
Habitat: Deep Marine (Northeast Pacific)
Scientific name: Eptatretus stoutii
Name: Western Hake
Order: Gadiformes
Habitat: Marine – Eastern Pacific
Scientific name: Merluccius productus
Name: Western Hatchetfish
Order: Stomiiformes
Habitat: Marine
Scientific name: Argyropelecus lychnus
Name: Western Hogfish
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Lachnolaimus maximus
Name: Western Hognose Sucker
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Chasmistes muriei
Name: Western Hourglass Goby
Order: Gobiiformes
Habitat: Marine (Western Pacific)
Scientific name: Amblyeleotris arcupinna
Name: Western Jewfish
Order: Perciformes
Habitat: Marine (Western Australia)
Scientific name: Glaucosoma hebraicum
Name: Western King Prawn
Order: Dendrobranchiata
Habitat: Marine – Australia
Scientific name: Penaeus latisulcatus
Name: Western Kingfish
Order: Perciformes
Habitat: Marine
Scientific name: Menticirrhus undulatus
Name: Western Least Killifish
Order: Cyprinodontiformes
Habitat: Freshwater (North America)
Scientific name: Heterandria formosa
Name: Western Long-Finned Pike
Order: Esociformes
Habitat: Freshwater (North America)
Scientific name: Esox lucius
Name: Western Margined Sole
Order: Pleuronectiformes
Habitat: Marine (Northeast Pacific)
Scientific name: Microstomus pacificus
Name: Western Mosquitofish
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Gambusia affinis
Name: Western Mud Minnow
Order: Esociformes
Habitat: Freshwater
Scientific name: Umbra limi
Name: Western Murrays Smelt
Order: Osmeriformes
Habitat: Freshwater (Australia)
Scientific name: Retropinna semoni
Name: Western North Pacific Alfonsino
Order: Beryciformes
Habitat: Deep Marine (Western Pacific)
Scientific name: Beryx splendens
Name: Western Pacific Blue Marlin
Order: Perciformes
Habitat: Marine (Western Pacific)
Scientific name: Makaira mazara
Name: Western Pacific Goby
Order: Gobiiformes
Habitat: Freshwater (Western Pacific)
Scientific name: Stenogobius yasha
Name: Western Pearl Dace
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Margariscus margarita
Name: Western Pigfish
Order: Perciformes
Habitat: Marine – Australia
Scientific name: Congiopodus spinifer
Name: Western Pigmy Goby
Order: Gobiiformes
Habitat: Marine (Western Pacific)
Scientific name: Eviota pellucida
Name: Western Pike Minnow
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Ptychocheilus oregonensis
Name: Western Pipfish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Syngnathus californiensis
Name: Western Pirate Perch
Order: Percopsiformes
Habitat: Freshwater (North America)
Scientific name: Aphredoderus sayanus gibbosus
Name: Western Port Pipefish
Order: Syngnathiformes
Habitat: Marine (Australia)
Scientific name: Syngnathus caretta
Name: Western Predatory Carp
Order: Cypriniformes
Habitat: Freshwater (Korea)
Scientific name: Squalidus gracilis
Name: Western Pygmy Perch
Order: Perciformes
Habitat: Freshwater
Scientific name: Nannoperca vittata
Name: Western Redfin
Order: Perciformes
Habitat: Freshwater
Scientific name: Perca fluviatilis
Name: Western Redfin Perch
Order: Perciformes
Habitat: Freshwater (Australia – introduced)
Scientific name: Perca fluviatilis
Name: Western Reef Cod
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Epinephelus fuscoguttatus
Name: Western Roach
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Lavinia exilicauda
Name: Western Rock Lobster
Order: Decapoda?
Habitat: Marine (Western Australia)
Scientific name: Panulirus cygnus
Name: Western Round Herring
Order: Clupeiformes
Habitat: Marine (Worldwide)
Scientific name: Etrumeus teres
Name: Western Sailfin Sculpin
Order: Scorpaeniformes
Habitat: Freshwater (Northeast Pacific)
Scientific name: Cottus asper
Name: Western Sand Darter
Order: Perciformes
Habitat: Freshwater
Scientific name: Ammocrypta clara
Name: Western Sand Goby
Order: Gobiiformes
Habitat: Marine – Eastern Atlantic
Scientific name: Pomatoschistus microps
Name: Western Sand Perch
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Centropristis striata
Name: Western Sandroller
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Percopsis transmontana
Name: Western Saratogan Spiny Eel
Order: Synbranchiformes
Habitat: Freshwater (Philippines)
Scientific name: Synbranchus marmoratus
Name: Western School Prawn
Order: Dendrobranchiata
Habitat: Marine – Australia
Scientific name: Metapenaeus dalli
Name: Western Sea Perch
Order: Perciformes
Habitat: Marine (Northeast Pacific)
Scientific name: Sebastes pachycephalus
Name: Western Shark Ray
Order: Rhincodontiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Rhina ancylostoma
Name: Western Shiner
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Luxilus chrysocephalus
Name: Western Shovelnose Sturgeon
Order: Acipenseriformes
Habitat: Freshwater (North America)
Scientific name: Scaphirhynchus platorynchus
Name: Western Silvery Minnow
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Hybognathus placitus
Name: Western Slickhead
Order: Argentiniformes
Habitat: Deep Marine (Worldwide)
Scientific name: Rouleina danae
Name: Western Smelt
Order: Osmeriformes
Habitat: Marine/Brackish (Northeast Pacific)
Scientific name: Hypomesus pretiosus
Name: Western Smooth Boxfish
Order: Tetraodontiformes
Habitat: Marine – Australia
Scientific name: Anoplocapros amygdaloides
Name: Western Snakehead
Order: Perciformes
Habitat: Freshwater (North America – introduced)
Scientific name: Channa argus
Name: Western Sole
Order: Pleuronectiformes
Habitat: Marine (Northeast Pacific)
Scientific name: Parophrys vetulus
Name: Western Speckled Dace
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Rhinichthys osculus
Name: Western Spiny Eel
Order: Synbranchiformes
Habitat: Freshwater (Southeast Asia)
Scientific name: Macrognathus pancalus
Name: Western Spottail Shiner
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Notropis hudsonius
Name: Western Spotted Sculpin
Order: Scorpaeniformes
Habitat: Freshwater – North America
Scientific name: Cottus rhotheus
Name: Western Spotty
Order: Perciformes
Habitat: Marine (Southern Australia)
Scientific name: Pseudolabrus luculentus
Name: Western Stargazer
Order: Perciformes
Habitat: Marine (Western Australia)
Scientific name: Kathetostoma caninus
Name: Western Starry Ray
Order: Rajiformes
Habitat: Marine (Northeast Pacific)
Scientific name: Raja stellulata
Name: Western Striped Shiner
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Luxilus chrysocephalus
Name: Western Striped Tuna
Order: Scombriformes
Habitat: Marine – Indo-Pacific
Scientific name: Katsuwonus pelamis orientalis
Name: Western Sturgeon
Order: Acipenseriformes
Habitat: Freshwater/Brackish (North America)
Scientific name: Acipenser transmontanus
Name: Western Sucker
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Catostomus occidentalis
Name: Western Swamphen Goby
Order: Gobiiformes
Habitat: Freshwater/Brackish – Australia/Asia
Scientific name: Butis butis
Name: Western Swordfish
Order: Xiphiiformes
Habitat: Marine
Scientific name: Xiphias gladius
Name: Western Tench
Order: Cypriniformes
Habitat: Freshwater (Europe)
Scientific name: Tinca tinca
Name: Western Trout Minnow
Order: Cypriniformes
Habitat: Freshwater – North America
Scientific name: Margariscus margarita nachtriebi
Name: Western Trumpeter
Order: Perciformes
Habitat: Marine (Australia)
Scientific name: Pelates sexlineatus
Name: Western Turbot
Order: Pleuronectiformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Scophthalmus maximus
Name: Western Varied Eel-Loach
Order: Synbranchiformes
Habitat: Freshwater – South America
Scientific name: Gymnotus brasiliensis
Name: Western Walledeye Goby
Order: Gobiiformes
Habitat: Marine (Western Pacific)
Scientific name: Sueviota weberi
Name: Western White Shad
Order: Clupeiformes
Habitat: Anadromous (North America)
Scientific name: Alosa sapidissima
Name: Western Whiting
Order: Gadiformes
Habitat: Marine
Scientific name: Merluccius productus
Name: Western Xanthic Pipefish
Order: Syngnathiformes
Habitat: Marine (Western Australia)
Scientific name: Micrognathus richardi
Name: Westernense Eel
Order: Anguilliformes
Habitat: Freshwater/Marine – Indo-Pacific
Scientific name: Anguilla bengalensis bengalensis
Name: Westgate's Cardinalfish
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Ostorhinchus westgatei
Name: Westgate's Triplefin
Order: Blenniiformes
Habitat: Marine
Scientific name: Tripterygius westgatei
Name: Wetmore's Wrasse
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Halichoeres wetmorei
Name: Wetterhorn Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Synodontis schall
Name: Weymouth Killifish
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Fundulus diaphanus
Name: Whale Char
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Salvelinus confluentus
Name: Whale Flathead
Order: Scorpaeniformes
Habitat: Marine – Indo-Pacific
Scientific name: Suggrundus cooperi
Name: Whale Shark
Order: Orectolobiformes
Habitat: Marine
Scientific name: Rhincodon typus
Name: Whalebone Eel
Order: Anguilliformes
Habitat: Marine – Deep Sea
Scientific name: Cyema atrum
Name: Whalebone Flounder
Order: Pleuronectiformes
Habitat: Deep Marine (Indo-Pacific)
Scientific name: Poecilopsetta plinthus
Name: Whalebone Sculpin
Order: Scorpaeniformes
Habitat: Freshwater
Scientific name: Cottus bairdii
Name: Whalefish
Order: Lampriformes
Habitat: Marine – Deep Sea
Scientific name: Linophryne arborifera
Name: Whalehead
Order: Zeiformes
Habitat: Deep Marine (Southern Ocean)
Scientific name: Allocyttus folletti
Name: Whalehead Perch
Order: Perciformes
Habitat: Marine
Scientific name: Notothenia rossii
Name: Whaler Shark
Order: Carcharhiniformes
Habitat: Marine (Worldwide Temperate)
Scientific name: Carcharhinus brachyurus
Name: Whaley's Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogon whaleyi
Name: Whaling Scorpionfish
Order: Scorpaeniformes
Habitat: Marine – Indo-Pacific
Scientific name: Scorpaena histrio
Name: Whangarei Eel
Order: Anguilliformes
Habitat: Freshwater/Marine
Scientific name: Anguilla dieffenbachii
Name: Wheatley's Goby
Order: Gobiiformes
Habitat: Marine (Australia)
Scientific name: Glossogobius wheatlandii
Name: Wheel Anglerfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Lophius vaillanti
Name: Wheel Flounder
Order: Pleuronectiformes
Habitat: Marine – Indo-Pacific
Scientific name: Samaris cristata
Name: Wheel Sturgeon
Order: Acipenseriformes
Habitat: Freshwater
Scientific name: Acipenser ruthenus
Name: Wheeler's Goby
Order: Gobiiformes
Habitat: Marine (Western Pacific)
Scientific name: Vanderhorstia mertensi
Name: Whiff
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Citharichthys cornutus
Name: Whiff Scad
Order: Carangiformes
Habitat: Marine
Scientific name: Decapterus tabl
Name: Whiff Wrasse
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Cheilinus trilobatus
Name: Whip Snapper
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Lutjanus virescens
Name: Whip-fin Swellshark
Order: Carcharhiniformes
Habitat: Marine (Northeast Pacific)
Scientific name: Cephaloscyllium ventriosum
Name: Whip-tailed Goby
Order: Gobiiformes
Habitat: Marine (Eastern Atlantic/Mediterranean)
Scientific name: Arnoglossus laterna
Name: Whipnose Angler
Order: Lophiiformes
Habitat: Marine
Scientific name: Gigantactis vanhoeffeni
Name: Whirlpool Catfish
Order: Siluriformes
Habitat: Freshwater (Florida)
Scientific name: Pimelodus floridensis
Name: Whirlwind Wrasse
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Cirrhilabrus exquisitus
Name: Whisker Croaker
Order: Sciaenidae
Habitat: Marine – Western Atlantic
Scientific name: Micropogonias megalops
Name: Whisker Dottyback
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Pseudochromis fuscus
Name: Whisker Eel-Pout
Order: Perciformes
Habitat: Marine – North Atlantic
Scientific name: Zoarces viviparus
Name: Whisker Filefish
Order: Tetraodontiformes
Habitat: Marine – Indo-Pacific
Scientific name: Pseudalutarius nasicornis
Name: Whisker Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Amblygobius pholegandros
Name: Whisker Hairtail
Order: Scombriformes
Habitat: Marine – Worldwide
Scientific name: Trichiurus lepturus
Name: Whisker Hawkfish
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Cirrhitichthys oxycephalus
Name: Whisker Pipefish
Order: Syngnathiformes
Habitat: Marine – Indo-Pacific
Scientific name: Syngnathus macrophthalmus
Name: Whisker Searobin
Order: Scorpaeniformes
Habitat: Marine – Western Atlantic
Scientific name: Prionotus ruscarius
Name: Whisker Shrimpfish
Order: Syngnathiformes
Habitat: Marine – Indo-Pacific
Scientific name: Centriscus scutatus
Name: Whisker Sole
Order: Pleuronectiformes
Habitat: Marine – Eastern Atlantic
Scientific name: Monochirus hispidus
Name: Whiskered Bandfish
Order: Perciformes
Habitat: Marine
Scientific name: Cepola sp. 1
Name: Whiskered Bass
Order: Perciformes
Habitat: Freshwater
Scientific name: Percichthys trucha
Name: Whiskered Batfish
Order: Perciformes
Habitat: Marine – Western Pacific
Scientific name: Platax pinnatus
Name: Whiskered Croaker
Order: Perciformes
Habitat: Marine
Scientific name: Umbrina cirrosa
Name: Whiskered Darter
Order: Perciformes
Habitat: Freshwater
Scientific name: Percina roanoka
Name: Whiskered Dogfish
Order: Carcharhiniformes
Habitat: Marine – North Pacific
Scientific name: Cirrhigaleus barbifer
Name: Whiskered Dragonet
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Synchiropus marmoratus
Name: Whiskered Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Leptocephalus caudilineatus
Name: Whiskered Flounder
Order: Pleuronectiformes
Habitat: Marine – Indo-Pacific
Scientific name: Arnoglossus macrolophus
Name: Whiskered Flyingfish
Order: Beloniformes
Habitat: Marine
Scientific name: Cheilopogon pinnatibarbatus
Name: Whiskered Goatfish
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Upeneus tragula
Name: Whiskered Goby
Order: Gobiiformes
Habitat: Freshwater (Southeast Asia)
Scientific name: Hemiichthys aculeatus
Name: Whiskered Grenadier
Order: Gadiformes
Habitat: Marine
Scientific name: Coelorinchus coelorinchus
Name: Whiskered Grunt
Order: Perciformes
Habitat: Marine
Scientific name: Pomadasys stridens
Name: Whiskered Jawfish
Order: Perciformes
Habitat: Marine – Western Atlantic
Scientific name: Opistognathus aurifrons
Name: Whiskered Kingfish
Order: Perciformes
Habitat: Marine
Scientific name: Branchiostegus japonicus
Name: Whiskered Monarch
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Monarcha melanopsis
Name: Whiskered Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax barbulifer
Name: Whiskered Mullet
Order: Mugiliformes
Habitat: Marine (Indo-Pacific)
Scientific name: Liza alata
Name: Whiskered Sandperch
Order: Trachiniformes
Habitat: Marine
Scientific name: Parapercis nebulosa
Name: Whiskered Sculpin
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Icelinus filamentosus
Name: Whiskered Searobin
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Prionotus stephanophrys
Name: Whiskered Shark
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Galeorhinus galeus
Name: Whiskered Sleeper
Order: Gobiiformes
Habitat: Freshwater/Brackish – Indo-Pacific
Scientific name: Eleotris fusca
Name: Whiskered Sole
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Solea nasuta
Name: Whiskered Spinefoot
Order: Perciformes
Habitat: Marine
Scientific name: Siganus spinus
Name: Whiskered Threadfin
Order: Polynemiformes
Habitat: Marine
Scientific name: Polydactylus plebeius
Name: Whiskered Toby
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Canthigaster valentini
Name: Whiskered Triplefin
Order: Blenniiformes
Habitat: Marine
Scientific name: Tripterygius etheostomus
Name: Whispering Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Amblygobius bynoensis
Name: Whissell's Blenny
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Ecsenius whisseli
Name: Whistlefish
Order: Perciformes
Habitat: Marine
Scientific name: Chilomycterus reticulatus
Name: Whistlefish Pipefish
Order: Syngnathiformes
Habitat: Marine – Indo-Pacific
Scientific name: Syngnathus whistlefish
Name: Whistler Wrasse
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Bodianus opercularis
Name: White Amur
Order: Cypriniformes
Habitat: Freshwater (Asia)
Scientific name: Ctenopharyngodon idella
Name: White Anglerfish
Order: Lophiiformes
Habitat: Marine – North Atlantic
Scientific name: Lophius arboriferus
Name: White Bar Triplefin
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Helcogramma ellioti
Name: White Barbel
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Barbus barbus
Name: White Bass
Order: Perciformes
Habitat: Freshwater
Scientific name: Morone chrysops
Name: White Bellied Pipefish
Order: Syngnathiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Festucalex cinctus
Name: White Blenny
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Ecsenius schroederi
Name: White Bream
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Blicca bjoerkna
Name: White Brotula
Order: Ophidiiformes
Habitat: Marine – Western Atlantic
Scientific name: Brotula barbata
Name: White Broussonet
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Scorpaena Broussonetii
Name: White Buffalo
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Ictiobus cyprinellus
Name: White Butterflyfish
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Chaetodon lineolatus
Name: White Cardinalfish
Order: Perciformes
Habitat: Marine – Western Atlantic
Scientific name: Apogon pseudomaculatus
Name: White Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Ameiurus catus
Name: White Chub
Order: Cypriniformes
Habitat: Freshwater – North America
Scientific name: Mylocheilus caurinus
Name: White Cloud Mountain Minnow
Order: Cypriniformes
Habitat: Freshwater (China)
Scientific name: Tanichthys albonubes
Name: White Cranchia
Order: Teuthida
Habitat: Marine – Pelagic
Scientific name: Cranchia scabra
Name: White Crappie
Order: Perciformes
Habitat: Freshwater
Scientific name: Pomoxis annularis
Name: White Croaker
Order: Perciformes
Habitat: Marine
Scientific name: Genyonemus lineatus
Name: White Crouper
Order: Perciformes
Habitat: Marine – Western Atlantic
Scientific name: Epinephelus striatus
Name: White Crucian Carp
Order: Cypriniformes
Habitat: Freshwater (Europe/Asia)
Scientific name: Carassius carassius
Name: White Dace
Order: Cypriniformes
Habitat: Freshwater (Europe/Asia)
Scientific name: Leuciscus leuciscus
Name: White Damselfish
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Plectroglyphidodon lacrymatus
Name: White Deepsea Smelt
Order: Osmeriformes
Habitat: Marine – Pacific Ocean
Scientific name: Bathylagus pacificus
Name: White Disc Fish
Order: Perciformes
Habitat: Freshwater (South America)
Scientific name: Symphysodon discus
Name: White Dolly Varden
Order: Salmoniformes
Habitat: Freshwater (North America)
Scientific name: Salvelinus malma
Name: White Dormer
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Calotomus carolinus
Name: White Dotted Clingfish
Order: Gobiesociformes
Habitat: Marine – Indo-Pacific
Scientific name: Lepadichthys frenatus
Name: White Dottyback
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Pseudochromis aldabraensis
Name: White Drum
Order: Perciformes
Habitat: Marine
Scientific name: Pogonias cromis
Name: White Eel
Order: Anguilliformes
Habitat: Marine – Indo-Pacific
Scientific name: Gymnothorax albimarginatus
Name: White Featherfin
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Heniochus acuminatus
Name: White Filefish
Order: Tetraodontiformes
Habitat: Marine – Indo-Pacific
Scientific name: Pseudalutarius nasicornis
Name: White Fin Croaker
Order: Perciformes
Habitat: Marine – Eastern Pacific
Scientific name: Genyonemus lineatus
Name: White Fin Grunt
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Pomadasys argyreus
Name: White Fin Sea Catfish
Order: Siluriformes
Habitat: Brackish/Marine (South America)
Scientific name: Ariopsis bonillai
Name: White Fin Tuna
Order: Scombriformes
Habitat: Marine (Worldwide)
Scientific name: Thunnus alalunga
Name: White Fin Wolfish
Order: Perciformes
Habitat: Marine (North Pacific)
Scientific name: Anarhichas orientalis
Name: White Flounder
Order: Pleuronectiformes
Habitat: Marine (Northwest Atlantic)
Scientific name: Pseudopleuronectes americanus
Name: White Four-Eyed Fish
Order: Cyprinodontiformes
Habitat: Brackish/Freshwater (South America)
Scientific name: Anableps anableps
Name: White Grunt
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Haemulon plumierii
Name: White Hake
Order: Gadiformes
Habitat: Marine (Northwest Atlantic)
Scientific name: Urophycis chuss
Name: White Horse Minnow
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Mylocheilus caurinus
Name: White Marlin
Order: Perciformes
Habitat: Marine (Atlantic Ocean)
Scientific name: Kajikia albidus
Name: White Mouth Croaker
Order: Perciformes
Habitat: Marine
Scientific name: Micropogonias megalops
Name: White Mouth Moray
Order: Anguilliformes
Habitat: Marine (Indo-Pacific)
Scientific name: Gymnothorax meleagris
Name: White Mullet
Order: Mugiliformes
Habitat: Marine/Brackish
Scientific name: Mugil curema
Name: White Perch
Order: Perciformes
Habitat: Freshwater
Scientific name: Morone americana
Name: White Piranha
Order: Characiformes
Habitat: Freshwater (South America)
Scientific name: Serrasalmus rhombeus
Name: White River Darter
Order: Perciformes
Habitat: Freshwater
Scientific name: Etheostoma euzonum
Name: White River Shiner
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Notropis albeolus
Name: White River Speckled Dace
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Rhinichthys osculus
Name: White River Spinedace
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Lepidomeda albivallis
Name: White River Springfish
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Crenichthys baileyi
Name: White River Valley Carp
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Gila crassicauda
Name: White Sea Bream
Order: Spariformes
Habitat: Marine
Scientific name: Diplodus sargus
Name: White Seabass
Order: Perciformes
Habitat: Marine (Northeast Pacific)
Scientific name: Atractoscion nobilis
Name: White Shark
Order: Lamniformes
Habitat: Marine (Worldwide)
Scientific name: Carcharodon carcharias
Name: White Snapper
Order: Perciformes
Habitat: Marine (Western Pacific)
Scientific name: Pagrus auratus
Name: White Spot Goatfish
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Parupeneus chrysopleuron
Name: White Spot Toby
Order: Tetraodontiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Canthigaster janthinoptera
Name: White Spotted Puffer
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Arothron hispidus
Name: White Sturgeon
Order: Acipenseriformes
Habitat: Freshwater
Scientific name: Acipenser transmontanus
Name: White Sucker
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Catostomus commersonii
Name: White Threadfin Bream
Order: Perciformes
Habitat: Marine
Scientific name: Nemipterus virgatus
Name: White Trevally
Order: Carangiformes
Habitat: Marine
Scientific name: Pseudocaranx dentex
Name: White Turbot
Order: Pleuronectiformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Rhombus maximus
Name: White Whale
Order: Artiodactyla
Habitat: Marine (Arctic/Subarctic)
Scientific name: Delphinapterus leucas
Name: White's Seahorse
Order: Syngnathiformes
Habitat: Marine
Scientific name: Hippocampus whitei
Name: White's Snapper
Order: Perciformes
Habitat: Marine
Scientific name: Lutjanus whitei
Name: White-Spotted Filefish
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Cantherhines macrocephalus
Name: White-Spotted Grunt
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Diagramma pictum
Name: White-Spotted Puffer
Order: Tetraodontiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Arothron hispidus
Name: White-Spotted Surgeonfish
Order: Acanthuriformes
Habitat: Marine
Scientific name: Acanthurus leucopareius
Name: White-Striped Bass
Order: Perciformes
Habitat: Freshwater/Marine
Scientific name: Morone saxtalis
Name: White-Striped Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogon albimaculosus
Name: White-Striped Pipefish
Order: Syngnathiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Dunckerocampus dactyliophorus
Name: White-eared Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Halichoeres miniatus
Name: White-edged Lyretail
Order: Serraniformes
Habitat: Marine
Scientific name: Variola albimarginata
Name: White-eyed Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax thyrsoideus
Name: White-fingered Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Acentrogobius nebulosus
Name: White-finned Topminnow
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Fundulus notatus
Name: White-footed Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Amblygobius pholegandros
Name: White-fringed Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Cirripectes castaneus
Name: White-gilled Butterfish
Order: Perciformes
Habitat: Marine
Scientific name: Psenopsis anomala
Name: White-headed Goby
Order: Gobiiformes
Habitat: Brackish/Freshwater
Scientific name: Glossogobius giuris
Name: White-lined Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Meiacanthus lineatus
Name: White-lined Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Cheilodipterus lineatus
Name: White-lined Soapfish
Order: Perciformes
Habitat: Marine
Scientific name: Diploprion bifasciatum
Name: White-lipped Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax chilospilus
Name: White-margin Surgeonfish
Order: Acanthuriformes
Habitat: Marine
Scientific name: Acanthurus albonianus
Name: White-margin Unicornfish
Order: Acanthuriformes
Habitat: Marine
Scientific name: Naso annulatus
Name: White-spotted Blenny
Order: Blenniiformes
Habitat: Marine (Mediterranean/Black Sea)
Scientific name: Parablennius tentacularis
Name: White-spotted Conger
Order: Anguilliformes
Habitat: Marine
Scientific name: Conger myriaster
Name: White-tail Damselfish
Order: Perciformes
Habitat: Marine
Scientific name: Pomacentrus chrysurus
Name: Whitebait
Order: Clupeiformes
Habitat: Marine/Brackish
Scientific name: Various species (juvenile fish)
Name: Whitebelly Threadfin Beryx
Order: Beryciformes
Habitat: Marine
Scientific name: Beryx mollis
Name: Whitecheek Monocle Bream
Order: Spariformes
Habitat: Marine
Scientific name: Scolopsis bilineata
Name: Whitecheek Sardine
Order: Clupeiformes
Habitat: Marine
Scientific name: Sardinella maderensis
Name: Whitecheek Surgeonfish
Order: Acanthuriformes
Habitat: Marine
Scientific name: Acanthurus nigricans
Name: Whitecheek Unicornfish
Order: Acanthuriformes
Habitat: Marine
Scientific name: Naso lituratus
Name: Whiteface Batfish
Order: Ephippiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Platax boersii
Name: Whiteface Eel-Loach
Order: Synbranchiformes
Habitat: Freshwater – Neotropics
Scientific name: Synbranchus marmoratus
Name: Whiteface Snake Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Ophichthus albicaudatus
Name: Whiteface Toby
Order: Tetraodontiformes
Habitat: Marine – Indo-Pacific
Scientific name: Canthigaster janthinoptera
Name: Whiteface Toothed Cod
Order: Gadiformes
Habitat: Marine
Scientific name: Muraenolepis microps
Name: Whitefaced Blenny
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Salarias fasciatus
Name: Whitefeather Squirrelfish
Order: Beryciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Sargocentron caudimaculatum
Name: Whitefin Cardinalfish
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Apogon exostigma
Name: Whitefin Dace
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Leuciscus leuciscus
Name: Whitefin Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Gnatholepis anjeriana
Name: Whitefin Lanternshark
Order: Squaliformes
Habitat: Marine – Western Atlantic
Scientific name: Etmopterus perryi
Name: Whitefin Skate
Order: Rajiformes
Habitat: Marine – Eastern Atlantic
Scientific name: Raja alba
Name: Whitefin Squirrelfish
Order: Beryciformes
Habitat: Marine
Scientific name: Sargocentron caudimaculatum
Name: Whitefin Swellshark
Order: Carcharhiniformes
Habitat: Marine – Western Pacific
Scientific name: Cephaloscyllium albipinnum
Name: Whitefin Topminnow
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Fundulus escambiae
Name: Whitefin Wolf-eel
Order: Perciformes
Habitat: Marine – North Pacific
Scientific name: Anarhichas orientalis
Name: Whitefin Wolf-herring
Order: Clupeiformes
Habitat: Marine
Scientific name: Chirocentrus nudus
Name: Whitefin Wolfish
Order: Perciformes
Habitat: Marine
Scientific name: Anarhichas orientalis
Name: Whitefin Worm Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Kraemeria cuniculus
Name: Whitefinned Drum
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Pareques acuminatus
Name: Whitefinned Frogfish
Order: Lophiiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Antennarius hispidus
Name: Whitefinned Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Symphodus cinereus
Name: Whitefish
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Coregonus clupeaformis
Name: Whitefish Pike
Order: Esociformes
Habitat: Freshwater – Northern Hemisphere
Scientific name: Esox lucius
Name: Whiteflower Pipefish
Order: Syngnathiformes
Habitat: Marine – Indo-Pacific
Scientific name: Corythoichthys ocellatus
Name: Whitehead Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Mystus montanus
Name: Whitehead Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Corythoichthys ocellatus
Name: Whitehead's Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Paralichthys lethostigma
Name: Whitehead's Pipefish
Order: Syngnathiformes
Habitat: Marine – Indo-Pacific
Scientific name: Ichthyocampus carce
Name: Whitehead's Reef Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Exyrias whiteheadi
Name: Whitehead's Sardinella
Order: Clupeiformes
Habitat: Marine
Scientific name: Sardinella longiceps
Name: Whiteheaded Mullet
Order: Mugiliformes
Habitat: Marine/Brackish (Worldwide)
Scientific name: Mugil cephalus
Name: Whitelined Bream
Order: Spariformes
Habitat: Marine
Scientific name: Diplodus sargus
Name: Whitelined Grouper
Order: Perciformes
Habitat: Marine
Scientific name: Epinephelus coeruleopunctatus
Name: Whitelined Triggerfish
Order: Tetraodontiformes
Habitat: Marine – Indo-Pacific
Scientific name: Sufflamen bursa
Name: Whitemargin Stargazer
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Uranoscopus albesca
Name: Whitemargin Triggerfish
Order: Tetraodontiformes
Habitat: Marine – Indo-Pacific
Scientific name: Sufflamen albicaudatum
Name: Whitemarked Toby
Order: Tetraodontiformes
Habitat: Marine – Indo-Pacific
Scientific name: Canthigaster margaritata
Name: Whitemouth Croaker
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Micropogonias furnieri
Name: Whitemouth Jack
Order: Carangiformes
Habitat: Marine
Scientific name: Uraspis candidula
Name: Whitemouth Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax meleagris
Name: Whitemouth Trevally
Order: Carangiformes
Habitat: Marine (Worldwide)
Scientific name: Uraspis secunda
Name: Whiterump Snapper
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Lutjanus gibbus
Name: Whitesaddle Goatfish
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Parupeneus ciliatus
Name: Whiteside Skate
Order: Rajiformes
Habitat: Marine (Western Atlantic)
Scientific name: Raja eglanteria
Name: Whitespotted Catshark
Order: Carcharhiniformes
Habitat: Marine – Northwest Pacific
Scientific name: Scyliorhinus torazame
Name: Whitespotted Electric Ray
Order: Torpediniformes
Habitat: Marine – Eastern Atlantic
Scientific name: Torpedo torpedo
Name: Whitespotted Filefish
Order: Tetraodontiformes
Habitat: Marine – Indo-Pacific
Scientific name: Cantherhines macrocephalus
Name: Whitespotted Grouper
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Epinephelus coeruleopunctatus
Name: Whitespotted Puffer
Order: Tetraodontiformes
Habitat: Marine – Indo-Pacific
Scientific name: Arothron hispidus
Name: Whitestriped Goby
Order: Gobiiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Amblyeleotris fasciata
Name: Whitetail Gurnard
Order: Perciformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Trigla lucerna
Name: Whiting
Order: Gadiformes
Habitat: Marine
Scientific name: Merlangius merlangus
Name: Wickler's Wrasse
Order: Perciformes
Habitat: Marine – Western Pacific
Scientific name: Cirrhilabrus wickleri
Name: Wicklow Herring
Order: Clupeiformes
Habitat: Marine (Northeast Atlantic)
Scientific name: Clupea harengus
Name: Wicklow's Blenny
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Ecsenius wicklowi
Name: Wide-Barbels Flyingfish
Order: Beloniformes
Habitat: Marine
Scientific name: Cheilopogon arcticeps
Name: Widemouth Blindcat
Order: Siluriformes
Habitat: Freshwater
Scientific name: Trogloglanis pattersoni
Name: Widemouth Pipefish
Order: Syngnathiformes
Habitat: Marine (Eastern Atlantic/Mediterranean)
Scientific name: Syngnathus typhle
Name: Widow Rockfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Sebastes entomelas
Name: Wiegmann's Catfish
Order: Siluriformes
Habitat: Freshwater – South America
Scientific name: Rhamdia wiegmanni
Name: Wiener's Cardinalfish
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Siphamia weberi
Name: Wienerfish
Order: Perciformes
Habitat: Marine
Scientific name: Plectorhinchus cinctus
Name: Wigglyfish
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax rueppelliae
Name: Wild Carp
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Cyprinus carpio
Name: Wilde's Scorpionfish
Order: Scorpaeniformes
Habitat: Marine – Eastern Pacific
Scientific name: Scorpaena wildei
Name: Wilderness Catfish
Order: Siluriformes
Habitat: Freshwater (Asia)
Scientific name: Heteropneustes fossilis
Name: Wiley's Lanternfish
Order: Myctophiformes
Habitat: Marine – Deep Sea
Scientific name: Lampanyctus wileyi
Name: Wilfley's Goby
Order: Gobiiformes
Habitat: Marine – Eastern Atlantic
Scientific name: Gobius wilfleyi
Name: Wilhelmina's Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Trimma wilhelmii
Name: Wilk's Cardinalfish
Order: Perciformes
Habitat: Marine (Western Pacific)
Scientific name: Apogon wilsoni
Name: Will's Grunt
Order: Perciformes
Habitat: Marine – Western Atlantic
Scientific name: Pomadasys williana
Name: Willapa Bay Minnow
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Mylocheilus caurinus
Name: Willcox Spinedace
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Lepidomeda mollispinis
Name: Willem's Dogfish
Order: Squaliformes
Habitat: Marine – Western Pacific
Scientific name: Squalus willemi
Name: Williamson's Mudskipper
Order: Gobiiformes
Habitat: Brackish – Indo-Pacific
Scientific name: Periophthalmus williamsi
Name: Willoughby's Triplefin
Order: Blenniiformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Tripterygion delaisi
Name: Willow Blenny
Order: Blenniiformes
Habitat: Marine – Eastern Atlantic
Scientific name: Parablennius gattorugine
Name: Willow Minnow
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Pimephales tenellus
Name: Wilson's Flounder
Order: Pleuronectiformes
Habitat: Marine (Northwest Atlantic)
Scientific name: Limanda ferruginea
Name: Winchell's Flounder
Order: Pleuronectiformes
Habitat: Marine – Eastern Pacific
Scientific name: Pleuronichthys ritteri
Name: Windfish
Order: Beloniformes
Habitat: Marine
Scientific name: Hyporhamphus roberti
Name: Windowpane Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Scophthalmus aquosus
Name: Windy Point Mullet
Order: Mugiliformes
Habitat: Marine – Australia
Scientific name: Aldrichetta forsteri
Name: Winged Blenny
Order: Blenniiformes
Habitat: Freshwater – China
Scientific name: Pareuchiloglanis prolixus
Name: Winged Dragonfish
Order: Stomiiformes
Habitat: Marine – Deep Sea
Scientific name: Malacosteus niger
Name: Winged Pearly Razorfish
Order: Perciformes
Habitat: Marine – Indo-Pacific
Scientific name: Iniistius pavo
Name: Winged Pipefish
Order: Syngnathiformes
Habitat: Marine – Indo-Pacific
Scientific name: Syngnathus biostomus
Name: Winged Searobin
Order: Scorpaeniformes
Habitat: Marine – Western Atlantic
Scientific name: Prionotus alatus
Name: Winter Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Pseudopleuronectes americanus
Name: Winter Skate
Order: Rajiformes
Habitat: Marine – Northwest Atlantic
Scientific name: Leucoraja ocellata
Name: Wire Coral Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Bryaninops yongei
Name: Wire Needlefish
Order: Beloniformes
Habitat: Marine – Worldwide
Scientific name: Platybelone argalus
Name: Wire Snake Eel
Order: Anguilliformes
Habitat: Marine – Western Atlantic
Scientific name: Myrichthys breviceps
Name: Wire-tailed Filefish
Order: Tetraodontiformes
Habitat: Marine – Indo-Pacific
Scientific name: Pervagor spilosoma
Name: Wiry Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Syngnathus auliscus
Name: Witch Fish
Order: Pleuronectiformes
Habitat: Marine (North Atlantic)
Scientific name: Glyptocephalus cynoglossus
Name: Wobbegong Shark
Order: Orectolobiformes
Habitat: Marine
Scientific name: Orectolobus maculatus
Name: Wolf Eel
Order: Zoarciformes
Habitat: Marine
Scientific name: Anarrhichthys ocellatus
Name: Wolf Fish
Order: Perciformes
Habitat: Marine (North Atlantic/Pacific)
Scientific name: Anarhichadidae
Name: Wolf herring
Order: Clupeiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Chirocentrus dorab
Name: Wolffish
Order: Perciformes
Habitat: Marine (North Atlantic)
Scientific name: Anarhichas lupus
Name: Wolfish
Order: Perciformes
Habitat: Marine
Scientific name: Anarhichas lupus
Name: Wolfish Scabbardfish
Order: Perciformes
Habitat: Deep Marine (North Atlantic)
Scientific name: Aphanopus carbo
Name: Wonder Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Parablennius gattorugine
Name: Wood Catfish
Order: Siluriformes
Habitat: Freshwater (Asia)
Scientific name: Heteropneustes fossilis
Name: Wood Stargazer
Order: Perciformes
Habitat: Marine
Scientific name: Astroscopus sexspinus
Name: Wood's Flounder
Order: Pleuronectiformes
Habitat: Marine (Western Atlantic)
Scientific name: Paralichthys lethostigma
Name: Wood's Sculpin
Order: Scorpaeniformes
Habitat: Freshwater – North America
Scientific name: Cottus woodsii
Name: Wood's Spotted Goby
Order: Gobiiformes
Habitat: Marine – Indo-Pacific
Scientific name: Asterropteryx woodi
Name: Woodland Sculpin
Order: Scorpaeniformes
Habitat: Freshwater (North America)
Scientific name: Cottus confusus
Name: Woods Hole Sculpin
Order: Scorpaeniformes
Habitat: Freshwater (North America)
Scientific name: Cottus glaber
Name: Woolly Sculpin
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Clinocottus analis
Name: Wopti Frogfish
Order: Lophiiformes
Habitat: Marine – Indonesia
Scientific name: Antennarius wopti
Name: Worm Blenny
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Plagiotremus tapeinosoma
Name: Worm Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Myrophis platyrhinus
Name: Worm Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Brachyamblyopus brachysoma
Name: Worm Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Nerophis lumbriciformis
Name: Wormfish
Order: Gobiiformes
Habitat: Marine
Scientific name: Pholidichthys leucotaenia
Name: Worrell's Scorpionfish
Order: Scorpaeniformes
Habitat: Marine – Western Pacific
Scientific name: Scorpaena worrelli
Name: Wounded Darter
Order: Perciformes
Habitat: Freshwater
Scientific name: Etheostoma vulnerata
Name: Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Labridae
Name: Wrasse Basslet
Order: Perciformes
Habitat: Marine – Caribbean
Scientific name: Liopropoma aberrans
Name: Wrasse Goby
Order: Gobiiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Valenciennea strigata
Name: Wrasse Grouper
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Plectropomus laevis
Name: Wrassespotted Blenny
Order: Blenniiformes
Habitat: Marine – Indo-Pacific
Scientific name: Omobranchus ferox
Name: Wreckfish
Order: Perciformes
Habitat: Marine
Scientific name: Polyprion americanus
Name: Wrought Iron Butterflyfish
Order: Perciformes
Habitat: Marine (Northwest Pacific)
Scientific name: Chaetodon nippon
Name: Wrymouth
Order: Perciformes
Habitat: Marine – North Atlantic
Scientific name: Cryptacanthodes maculatus
| Name | Order | Habitat | Scientific name |
|---|---|---|---|
| Wabang Whitefish | Salmoniformes | Freshwater | Coregonus clupeaformis |
| Wabasca Cisco | Salmoniformes | Freshwater | Coregonus artedi |
| Wabasca Minnow | Cypriniformes | Freshwater | Mylocheilus caurinus |
| Wabasca Perch | Perciformes | Freshwater | Perca flavescens |
| Wagasi | Clupeiformes | Marine/Brackish | Pellona ditchela |
| Wagner's Tuna | Scombriformes | Marine – Indian Ocean | Thunnus wagneri |
| Wahoo | Scombriformes | Marine | Acanthocybium solandri |
| Wahoo Scad | Carangiformes | Marine | Decapterus macarellus |
| Wai-Wai Grunt | Perciformes | Marine/Brackish | Pomadasys crocro |
| Waivers' Basslet | Perciformes | Marine – Caribbean | Lipogramma waversi |
| Wakko Shark | Carcharhiniformes | Marine | Carcharhinus amblyrhynchos |
| Walakpa Char | Salmoniformes | Freshwater | Salvelinus malma |
| Walcott's Congereel | Anguilliformes | Marine – Pacific Ocean | Conger walcotti |
| Waldman's Wrasse | Perciformes | Marine | Symphodus melanocercus |
| Walford's Hake | Gadiformes | Marine | Macruronus novaezelandiae |
| Walford's Scorpionfish | Scorpaeniformes | Marine – Eastern Pacific | Scorpaena walfordi |
| Walking Batfish | Lophiiformes | Benthic (tropical/subtropical) | Ogcocephalidae |
| Walking Catfish | Siluriformes | Freshwater | Clarias batrachus |
| Walking Shark | Orectolobiformes | Marine | Hemiscyllium ocellatum |
| Wallace's Mudskipper | Gobiiformes | Brackish/Marine | Periophthalmus waltoni |
| Wallace's Pipefish | Syngnathiformes | Marine | Corythoichthys walacei |
| Wallach's Catfish | Siluriformes | Freshwater | Wallago attu |
| Wallago Attu | Siluriformes | Freshwater (Asia) | Wallago attu |
| Waller's Anglerfish | Lophiiformes | Marine | Lophius walleri |
| Waller's Moray | Anguilliformes | Marine – Indo-Pacific | Gymnothorax walleri |
| Walleye | Perciformes | Freshwater | Sander vitreus |
| Walleye Pollock | Gadiformes | Marine | Gadus chalcogrammus |
| Wallich's Shark | Carcharhiniformes | Marine – Indian Ocean | Carcharhinus wallichi |
| Walnut Blenny | Blenniiformes | Marine – Mediterranean | Parablennius incognitus |
| Walrus Fish | Perciformes | Coastal (Australia) | Gnathanacanthidae |
| Walsh's Cardinalfish | Perciformes | Marine | Apogon walshii |
| Walsh's Sculpin | Scorpaeniformes | Freshwater | Cottus walshi |
| Walter's Flounder | Pleuronectiformes | Marine | Pleuronichthys walteri |
| Walters' Goby | Gobiiformes | Marine | Gobiodon Waltersi |
| Walu | Scombriformes | Marine – Tropical/Subtropical Oceans | Acanthocybium solandri |
| Wami Tilapia | Cichliformes | Freshwater (East Africa) | Oreochromis urolepis |
| Wamino Goby | Gobiiformes | Marine – Indo-Pacific | Amblyeleotris wamino |
| Wanda's Sardine | Clupeiformes | Marine | Sardinella wandasi |
| Wanderman's Pipefish | Syngnathiformes | Marine – Indo-Pacific | Corythoichthys wandermanus |
| Wane-Wing Flyingfish | Beloniformes | Marine | Cypselurus hexazona |
| Wang's Scabbardfish | Perciformes | Marine – Western Pacific | Eupleurogrammus wangii |
| Wapiti Sculpin | Scorpaeniformes | Freshwater | Cottus wapiti |
| Wapoga Glassfish | Perciformes | Freshwater (New Guinea) | Ambassidae |
| War Paint Blenny | Blenniiformes | Marine – Indo-Pacific | Meiacanthus atrodorsalis |
| Warbonnet Blenny | Blenniiformes | Marine | Chirolophis nugator |
| Warburton's Moray | Anguilliformes | Marine – Indo-Pacific | Gymnothorax warburtonianus |
| Ward's Blenny | Blenniiformes | Marine | Ecsenius wardi |
| Ward's Goby | Gobiiformes | Marine | Gobiodon wardi |
| Warden's Basslet | Perciformes | Marine – Western Atlantic | Liopropoma wardeni |
| Warden's Triplefin | Blenniiformes | Marine | Norfolkia wardi |
| Wardi's Frogfish | Lophiiformes | Marine | Antennarius wardi |
| Warfaring Goby | Gobiiformes | Freshwater – Southeast Asia | Odonteleotris warfaring |
| Warianga Scat | Perciformes | Brackish/Marine (Indo-Pacific) | Scatophagidae |
| Warihine Cardinalfish | Perciformes | Marine | Apogon warihinensis |
| Warmouth | Perciformes | Freshwater | Lepomis gulosus |
| Warpaint Frogfish | Lophiiformes | Marine – Indo-Pacific | Antennarius warpaint |
| Warrego Perch | Perciformes | Freshwater (Australia) | Macquaria ambigua |
| Warren's Pipefish | Syngnathiformes | Marine | Corythoichthys waitei |
| Warrior Goby | Gobiiformes | Marine – Indo-Pacific | Stonogobiops nematodes |
| Wart Goby | Gobiiformes | Marine – Indo-Pacific | Acentrogobius viridipunctatus |
| Wart Hake | Gadiformes | Marine – Eastern Atlantic | Macruronus maderensis |
| Wart Snapper | Perciformes | Marine (Indo-Pacific) | Lutjanidae |
| Wart-Face Sole | Pleuronectiformes | Marine – Eastern Atlantic | Solea vulgaris |
| Wart-Faced Blenny | Blenniiformes | Marine – Eastern Pacific | Corengobius revellei |
| Warthead Sculpin | Scorpaeniformes | Marine – Arctic/North Pacific | Artediellus scaber |
| Wartskin Angler | Lophiiformes | Marine – Indo-Pacific | Antennarius maculatus |
| Warty Angler | Lophiiformes | Marine | Antennarius maculatus |
| Warty Blenny | Blenniiformes | Coastal (South Africa) | Clinus acuminatus |
| Warty Combtooth Blenny | Blenniiformes | Marine (Indo-Pacific) | Salarias wartyi |
| Warty Frogfish | Lophiiformes | Marine | Antennarius verrucosus |
| Warty Prowfish | Scorpaeniformes | Marine | Neopataecus waterhousei |
| Wartyhead Sculpin | Scorpaeniformes | Freshwater | Cottus cognatus |
| Waryfish | Aulopiformes | Marine | Scopelarchus analis |
| Wasabi Goby | Gobiiformes | Marine | Exyrias ferrarisi |
| Washigami Filefish | Tetraodontiformes | Marine | Paramonacanthus choirocephalus |
| Washington Skate | Rajiformes | Marine | Raja washingtoniensis |
| Washington State Whitefish | Salmoniformes | Freshwater | Prosopium coulteri |
| Wasserman's Blenny | Blenniiformes | Marine (Western Pacific) | Ecsenius wassii |
| Watauga Darter | Perciformes | Freshwater | Etheostoma perlongum |
| Watchman Goby | Gobiiformes | Marine | Cryptocentrus cinctus |
| Water Cobra | Anguilliformes | Marine (Indo-Pacific) | Moringuidae |
| Water Cusk-eel | Ophidiiformes | Marine | Ophidion robinsi |
| Water Flounder | Pleuronectiformes | Brackish/Marine (Europe) | Platichthys flesus |
| Water Pigmy Goby | Gobiiformes | Marine (Western Pacific) | Eviota aquatica |
| Water Wolf | Perciformes | Freshwater (South America) | Hoplias malabaricus |
| Water-Holding Crab-Eater | Perciformes | Freshwater | Macrognathus aral |
| Waterloo Killifish | Cyprinodontiformes | Freshwater | Nothobranchius wattersi |
| Watt's Wrasse | Perciformes | Marine | Cirrhilabrus wattsi |
| Wavetail Basslet | Perciformes | Marine | Pseudochromis fuscus |
| Wavy Goby | Gobiiformes | Brackish/Marine (Mediterranean/Black Sea) | Gobius ophiocephalus |
| Wavy Grubfish | Trachiniformes | Marine | Parapercis undulata |
| Wavy Razorfish | Perciformes | Marine | Iniistius undulatus |
| Wavyband Drummer | Perciformes | Marine – Indo-Pacific | Kyphosus vaigiensis |
| Wavyline Conger | Anguilliformes | Marine | Conger oceanicus |
| Wavyline Grunt | Perciformes | Marine | Plectorhinchus undulatus |
| Wavyline Snapper | Perciformes | Marine | Lutjanus rivulatus |
| Wavyline Triplefin | Blenniiformes | Marine – Indo-Pacific | Enneapterygius clarkae |
| Wayward Blenny | Blenniiformes | Marine | Plagiotremus laudandus |
| Weasel Blenny | Blenniiformes | Marine | Petroscirtes variabilis |
| Weasel Shark | Carcharhiniformes | Marine | Paragaleus pectoralis |
| Weather Loach | Cypriniformes | Freshwater | Misgurnus anguillicaudatus |
| Weaver Fish | Perciformes | Marine | Trachinus draco |
| Weaver's Needlefish | Beloniformes | Marine/Brackish | Strongylura marina |
| Web-foot Goby | Gobiiformes | Marine (Indo-Pacific) | Trypauchenichthys tentaculatus |
| Webb's Cardinalfish | Perciformes | Marine | Apogon webbi |
| Webbed Blenny | Blenniiformes | Marine | Coryphopterus glaucofraenum |
| Weber's Anchovy | Clupeiformes | Marine (Indo-Pacific) | Stolephorus weberi |
| Weber's Flyingfish | Beloniformes | Marine (Indo-Pacific) | Cheilopogon weberi |
| Weber's Goby | Gobiiformes | Marine (Indo-Pacific) | Gobiopsis weberi |
| Weber's Pipefish | Syngnathiformes | Marine (Indo-Pacific) | Corythoichthys weberi |
| Weber's Shark | Carcharhiniformes | Marine (Western Pacific) | Carcharhinus weberi |
| Weber's Silverside | Atheriniformes | Marine (Indo-Pacific) | Atherinomorus weberi |
| Wedge Triggerfish | Tetraodontiformes | Marine – Eastern Pacific | Sufflamen verres |
| Wedgenose Conger | Anguilliformes | Marine – Western Atlantic | Conger oceanicus |
| Wedgetail Bluefin Trevally | Carangiformes | Marine – Indo-Pacific | Caranx coeruleopinnatus |
| Weed Blenny | Blenniiformes | Marine | Heterostichus rostratus |
| Weedfish | Perciformes | Marine | Heteroclinus whiteleggii |
| Weedy Scorpionfish | Scorpaeniformes | Marine | Rhinopias aphanes |
| Weedy Seadragon | Syngnathiformes | Marine | Phyllopteryx taeniolatus |
| Week's Perch | Perciformes | Freshwater – North America | Percina weeksii |
| Weeping Toadfish | Batrachoidiformes | Marine – Western Atlantic | Opsanus beta |
| Weheli Goby | Gobiiformes | Freshwater (New Guinea) | Redigobius balteatops |
| Weimariners Anglerfish | Lophiformes | Marine | Chaunacops coloratus |
| Weiss' Goby | Gobiiformes | Marine – Indo-Pacific | Trimmatom weissi |
| Welander's Goby | Gobiiformes | Marine (Indo-Pacific) | Trimma welanderi |
| Welander's Hake | Gadiformes | Marine – Eastern Pacific | Merluccius welanderi |
| Welch's Basslet | Perciformes | Marine – Indo-Pacific | Symphysanodon welchi |
| Weldon's Loach | Cypriniformes | Freshwater (Asia) | Schistura weldoni |
| Weldon's Surgeonfish | Acanthuriformes | Marine | Acanthurus weldoni |
| Well's Spinedace | Cypriniformes | Freshwater | Lepidomeda mollis |
| Well-Spotted Loach | Cypriniformes | Freshwater (Southeast Asia) | Acanthopsoides rothenbergae |
| Well-spotted Catshark | Carcharhiniformes | Marine – Western Atlantic | Scyliorhinus retifer |
| Weller's Wrasse | Perciformes | Marine – Western Atlantic | Halichoeres welleri |
| Wells' Blenny | Blenniiformes | Marine – Indo-Pacific | Ecsenius welnsi |
| Wells' Triplefin | Blenniiformes | Marine – Western Pacific | Enneapterygius wellsii |
| Welsh's Pipefish | Syngnathiformes | Marine – Western Atlantic | Syngnathus welshii |
| Welshman's Goby | Gobiiformes | Marine | Gobius cobitis |
| Welted Blenny | Blenniiformes | Marine | Parablennius gattorugine |
| Wemer's Sandperch | Trachiniformes | Marine | Parapercis wemerorum |
| Wenman Island Ray | Myliobatiformes | Marine (Eastern Pacific) | Urobatis wenmani |
| Wenman Moray | Anguilliformes | Marine – Eastern Pacific | Gymnothorax shaoi |
| Wentzel's Toadfish | Batrachoidiformes | Marine – Western Atlantic | Batrachoides wentzelii |
| Wermuth's Cichlid | Cichliformes | Freshwater | Tilapia wermuthensis |
| Werner's Triggerfish | Tetraodontiformes | Marine – Western Pacific | Sufflamen werneri |
| Wesel's Cichlid | Cichliformes | Freshwater | Cichla orinocensis |
| West African Croaker | Perciformes | Marine | Pseudotolithus senegalensis |
| West African Lungfish | Ceratodontiformes | Freshwater | Protopterus annectens |
| West African Pilchard | Clupeiformes | Marine (West Africa) | Sardinella maderensis |
| West African Sawfish | Rajiformes | Marine/Brackish/Freshwater | Pristis pristis |
| West African Tonguefish | Pleuronectiformes | Marine | Cynoglossus senegalensis |
| West Australian Salmon | Perciformes | Coastal (Australia) | Arripis trutta |
| West Coast Flounder | Pleuronectiformes | Marine | Pleuronectes vetulus |
| West Coast Seabream | Spariformes | Marine – Australia | Acanthopagrus butcheri |
| West Indian Ocean Coelacanth | Coelacanthiformes | Marine | Latimeria chalumnae |
| West Pacific Goby | Gobiiformes | Marine – Western Pacific | Obliquogobius megalops |
| West Slope Cutthroat Trout | Salmoniformes | Freshwater | Oncorhynchus clarkii lewisi |
| West Slope Sculpin | Scorpaeniformes | Freshwater – North America | Cottus confusus |
| Westbourne Goby | Gobiiformes | Marine (Eastern Atlantic) | Didogobius wirtzi |
| Western Australian Shark | Carcharhiniformes | Marine | Carcharhinus obscurus |
| Western Banana Shrimp | Decapoda? | Marine (Indo-Pacific) | Penaeus merguiensis |
| Western Barred Grunter | Perciformes | Freshwater (Australia) | Amniataba percoides |
| Western Bass | Perciformes | Freshwater | Micropterus salmoides |
| Western Basslet | Perciformes | Marine – Western Atlantic | Symphysanodon occidentalis |
| Western Bay Blenny | Blenniiformes | Marine | Hypsoblennius jenkinsi |
| Western Bay Goby | Gobiiformes | Brackish/Marine (Australia) | Favonigobius lateralis |
| Western Blacknose Dace | Cypriniformes | Freshwater | Rhinichthys atratulus |
| Western Blacktip Shark | Carcharhiniformes | Marine – Western Australia | Carcharhinus coatesi |
| Western Blue Tang | Perciformes | Marine – Eastern Pacific | Acanthurus triostegus |
| Western Bluegill | Perciformes | Freshwater | Lepomis macrochirus |
| Western Bonytail | Cypriniformes | Freshwater | Gila elegans |
| Western Brook Lamprey | Petromyzontiformes | Freshwater | Lampetra richardsoni |
| Western Butterfish | Perciformes | Coastal (Northeast Pacific) | Pholis ornata |
| Western Carp Gudgeon | Gobiiformes | Freshwater | Hypseleotris galli |
| Western Catfish | Siluriformes | Freshwater (Australia) | Tandanus bostocki |
| Western Cavefish | Percopsiformes | Freshwater (North America) | Typhlichthys subterraneus |
| Western Chiselmouth | Cypriniformes | Freshwater | Acrocheilus alutaceus |
| Western Clingfish | Gobiesociformes | Marine – Eastern Atlantic | Lepadogaster lepadogaster |
| Western Conger Eel | Anguilliformes | Marine (Eastern Atlantic/Mediterranean) | Conger conger |
| Western Creek Chubsucker | Cypriniformes | Freshwater (North America) | Erimyzon tenuis |
| Western Creeper | Cypriniformes | Freshwater | Margaritifera falcata |
| Western Cryptic Goby | Gobiiformes | Marine (Indopacific) | Cryptocentrus tentaculatus |
| Western Cuvier | Perciformes | Marine (Worldwide) | Cuvierina columnifera |
| Western Deepwater Cardinalfish | Perciformes | Marine – Western Pacific | Apogon lachneri |
| Western Eel | Anguilliformes | Freshwater/Marine – Australia | Anguilla australis occidentalis |
| Western Flagtail | Perciformes | Marine/Brackish/Freshwater | Kuhlia marginata |
| Western Flathead | Perciformes | Marine (Western Australia) | Platycephalus westraliae |
| Western Four-eyed Fish | Cyprinodontiformes | Brackish/Freshwater (Central America) | Anableps dowi |
| Western Gambusia | Cyprinodontiformes | Freshwater (North America) | Gambusia affinis |
| Western Gar | Beloniformes | Freshwater (North America) | Lepisosteus occidentalis |
| Western Gillaroo | Salmoniformes | Freshwater (Ireland) | Salmo stomachicus |
| Western Gobbleguts | Perciformes | Marine – Australia | Apogon rueppellii |
| Western Gobbler | Perciformes | Marine | Echeneis naucrates |
| Western Goby | Gobiiformes | Marine (Eastern Atlantic/Mediterranean) | Gobius cobitis |
| Western Grey Mullet | Mugiliformes | Brackish/Marine (Worldwide) | Mugil cephalus |
| Western Gudgeon | Gobiiformes | Freshwater/Brackish (Central America) | Gobionellus occidentalis |
| Western Gurnard | Scorpaeniformes | Marine – Eastern Atlantic | Trigla lyra |
| Western Hagfish | Myxiniformes | Deep Marine (Northeast Pacific) | Eptatretus stoutii |
| Western Hake | Gadiformes | Marine – Eastern Pacific | Merluccius productus |
| Western Hatchetfish | Stomiiformes | Marine | Argyropelecus lychnus |
| Western Hogfish | Perciformes | Marine (Western Atlantic) | Lachnolaimus maximus |
| Western Hognose Sucker | Cypriniformes | Freshwater | Chasmistes muriei |
| Western Hourglass Goby | Gobiiformes | Marine (Western Pacific) | Amblyeleotris arcupinna |
| Western Jewfish | Perciformes | Marine (Western Australia) | Glaucosoma hebraicum |
| Western King Prawn | Dendrobranchiata | Marine – Australia | Penaeus latisulcatus |
| Western Kingfish | Perciformes | Marine | Menticirrhus undulatus |
| Western Least Killifish | Cyprinodontiformes | Freshwater (North America) | Heterandria formosa |
| Western Long-Finned Pike | Esociformes | Freshwater (North America) | Esox lucius |
| Western Margined Sole | Pleuronectiformes | Marine (Northeast Pacific) | Microstomus pacificus |
| Western Mosquitofish | Cyprinodontiformes | Freshwater | Gambusia affinis |
| Western Mud Minnow | Esociformes | Freshwater | Umbra limi |
| Western Murrays Smelt | Osmeriformes | Freshwater (Australia) | Retropinna semoni |
| Western North Pacific Alfonsino | Beryciformes | Deep Marine (Western Pacific) | Beryx splendens |
| Western Pacific Blue Marlin | Perciformes | Marine (Western Pacific) | Makaira mazara |
| Western Pacific Goby | Gobiiformes | Freshwater (Western Pacific) | Stenogobius yasha |
| Western Pearl Dace | Cypriniformes | Freshwater | Margariscus margarita |
| Western Pigfish | Perciformes | Marine – Australia | Congiopodus spinifer |
| Western Pigmy Goby | Gobiiformes | Marine (Western Pacific) | Eviota pellucida |
| Western Pike Minnow | Cypriniformes | Freshwater (North America) | Ptychocheilus oregonensis |
| Western Pipfish | Syngnathiformes | Marine | Syngnathus californiensis |
| Western Pirate Perch | Percopsiformes | Freshwater (North America) | Aphredoderus sayanus gibbosus |
| Western Port Pipefish | Syngnathiformes | Marine (Australia) | Syngnathus caretta |
| Western Predatory Carp | Cypriniformes | Freshwater (Korea) | Squalidus gracilis |
| Western Pygmy Perch | Perciformes | Freshwater | Nannoperca vittata |
| Western Redfin | Perciformes | Freshwater | Perca fluviatilis |
| Western Redfin Perch | Perciformes | Freshwater (Australia – introduced) | Perca fluviatilis |
| Western Reef Cod | Perciformes | Marine (Indo-Pacific) | Epinephelus fuscoguttatus |
| Western Roach | Cypriniformes | Freshwater | Lavinia exilicauda |
| Western Rock Lobster | Decapoda? | Marine (Western Australia) | Panulirus cygnus |
| Western Round Herring | Clupeiformes | Marine (Worldwide) | Etrumeus teres |
| Western Sailfin Sculpin | Scorpaeniformes | Freshwater (Northeast Pacific) | Cottus asper |
| Western Sand Darter | Perciformes | Freshwater | Ammocrypta clara |
| Western Sand Goby | Gobiiformes | Marine – Eastern Atlantic | Pomatoschistus microps |
| Western Sand Perch | Perciformes | Marine (Western Atlantic) | Centropristis striata |
| Western Sandroller | Cypriniformes | Freshwater (North America) | Percopsis transmontana |
| Western Saratogan Spiny Eel | Synbranchiformes | Freshwater (Philippines) | Synbranchus marmoratus |
| Western School Prawn | Dendrobranchiata | Marine – Australia | Metapenaeus dalli |
| Western Sea Perch | Perciformes | Marine (Northeast Pacific) | Sebastes pachycephalus |
| Western Shark Ray | Rhincodontiformes | Marine (Indo-Pacific) | Rhina ancylostoma |
| Western Shiner | Cypriniformes | Freshwater | Luxilus chrysocephalus |
| Western Shovelnose Sturgeon | Acipenseriformes | Freshwater (North America) | Scaphirhynchus platorynchus |
| Western Silvery Minnow | Cypriniformes | Freshwater | Hybognathus placitus |
| Western Slickhead | Argentiniformes | Deep Marine (Worldwide) | Rouleina danae |
| Western Smelt | Osmeriformes | Marine/Brackish (Northeast Pacific) | Hypomesus pretiosus |
| Western Smooth Boxfish | Tetraodontiformes | Marine – Australia | Anoplocapros amygdaloides |
| Western Snakehead | Perciformes | Freshwater (North America – introduced) | Channa argus |
| Western Sole | Pleuronectiformes | Marine (Northeast Pacific) | Parophrys vetulus |
| Western Speckled Dace | Cypriniformes | Freshwater (North America) | Rhinichthys osculus |
| Western Spiny Eel | Synbranchiformes | Freshwater (Southeast Asia) | Macrognathus pancalus |
| Western Spottail Shiner | Cypriniformes | Freshwater (North America) | Notropis hudsonius |
| Western Spotted Sculpin | Scorpaeniformes | Freshwater – North America | Cottus rhotheus |
| Western Spotty | Perciformes | Marine (Southern Australia) | Pseudolabrus luculentus |
| Western Stargazer | Perciformes | Marine (Western Australia) | Kathetostoma caninus |
| Western Starry Ray | Rajiformes | Marine (Northeast Pacific) | Raja stellulata |
| Western Striped Shiner | Cypriniformes | Freshwater (North America) | Luxilus chrysocephalus |
| Western Striped Tuna | Scombriformes | Marine – Indo-Pacific | Katsuwonus pelamis orientalis |
| Western Sturgeon | Acipenseriformes | Freshwater/Brackish (North America) | Acipenser transmontanus |
| Western Sucker | Cypriniformes | Freshwater | Catostomus occidentalis |
| Western Swamphen Goby | Gobiiformes | Freshwater/Brackish – Australia/Asia | Butis butis |
| Western Swordfish | Xiphiiformes | Marine | Xiphias gladius |
| Western Tench | Cypriniformes | Freshwater (Europe) | Tinca tinca |
| Western Trout Minnow | Cypriniformes | Freshwater – North America | Margariscus margarita nachtriebi |
| Western Trumpeter | Perciformes | Marine (Australia) | Pelates sexlineatus |
| Western Turbot | Pleuronectiformes | Marine (Eastern Atlantic) | Scophthalmus maximus |
| Western Varied Eel-Loach | Synbranchiformes | Freshwater – South America | Gymnotus brasiliensis |
| Western Walledeye Goby | Gobiiformes | Marine (Western Pacific) | Sueviota weberi |
| Western White Shad | Clupeiformes | Anadromous (North America) | Alosa sapidissima |
| Western Whiting | Gadiformes | Marine | Merluccius productus |
| Western Xanthic Pipefish | Syngnathiformes | Marine (Western Australia) | Micrognathus richardi |
| Westernense Eel | Anguilliformes | Freshwater/Marine – Indo-Pacific | Anguilla bengalensis bengalensis |
| Westgate's Cardinalfish | Perciformes | Marine – Indo-Pacific | Ostorhinchus westgatei |
| Westgate's Triplefin | Blenniiformes | Marine | Tripterygius westgatei |
| Wetmore's Wrasse | Perciformes | Marine – Indo-Pacific | Halichoeres wetmorei |
| Wetterhorn Catfish | Siluriformes | Freshwater | Synodontis schall |
| Weymouth Killifish | Cyprinodontiformes | Freshwater | Fundulus diaphanus |
| Whale Char | Salmoniformes | Freshwater | Salvelinus confluentus |
| Whale Flathead | Scorpaeniformes | Marine – Indo-Pacific | Suggrundus cooperi |
| Whale Shark | Orectolobiformes | Marine | Rhincodon typus |
| Whalebone Eel | Anguilliformes | Marine – Deep Sea | Cyema atrum |
| Whalebone Flounder | Pleuronectiformes | Deep Marine (Indo-Pacific) | Poecilopsetta plinthus |
| Whalebone Sculpin | Scorpaeniformes | Freshwater | Cottus bairdii |
| Whalefish | Lampriformes | Marine – Deep Sea | Linophryne arborifera |
| Whalehead | Zeiformes | Deep Marine (Southern Ocean) | Allocyttus folletti |
| Whalehead Perch | Perciformes | Marine | Notothenia rossii |
| Whaler Shark | Carcharhiniformes | Marine (Worldwide Temperate) | Carcharhinus brachyurus |
| Whaley's Cardinalfish | Perciformes | Marine | Apogon whaleyi |
| Whaling Scorpionfish | Scorpaeniformes | Marine – Indo-Pacific | Scorpaena histrio |
| Whangarei Eel | Anguilliformes | Freshwater/Marine | Anguilla dieffenbachii |
| Wheatley's Goby | Gobiiformes | Marine (Australia) | Glossogobius wheatlandii |
| Wheel Anglerfish | Lophiiformes | Marine | Lophius vaillanti |
| Wheel Flounder | Pleuronectiformes | Marine – Indo-Pacific | Samaris cristata |
| Wheel Sturgeon | Acipenseriformes | Freshwater | Acipenser ruthenus |
| Wheeler's Goby | Gobiiformes | Marine (Western Pacific) | Vanderhorstia mertensi |
| Whiff | Pleuronectiformes | Marine | Citharichthys cornutus |
| Whiff Scad | Carangiformes | Marine | Decapterus tabl |
| Whiff Wrasse | Perciformes | Marine – Indo-Pacific | Cheilinus trilobatus |
| Whip Snapper | Perciformes | Marine (Indo-Pacific) | Lutjanus virescens |
| Whip-fin Swellshark | Carcharhiniformes | Marine (Northeast Pacific) | Cephaloscyllium ventriosum |
| Whip-tailed Goby | Gobiiformes | Marine (Eastern Atlantic/Mediterranean) | Arnoglossus laterna |
| Whipnose Angler | Lophiiformes | Marine | Gigantactis vanhoeffeni |
| Whirlpool Catfish | Siluriformes | Freshwater (Florida) | Pimelodus floridensis |
| Whirlwind Wrasse | Perciformes | Marine – Indo-Pacific | Cirrhilabrus exquisitus |
| Whisker Croaker | Sciaenidae | Marine – Western Atlantic | Micropogonias megalops |
| Whisker Dottyback | Perciformes | Marine – Indo-Pacific | Pseudochromis fuscus |
| Whisker Eel-Pout | Perciformes | Marine – North Atlantic | Zoarces viviparus |
| Whisker Filefish | Tetraodontiformes | Marine – Indo-Pacific | Pseudalutarius nasicornis |
| Whisker Goby | Gobiiformes | Marine – Indo-Pacific | Amblygobius pholegandros |
| Whisker Hairtail | Scombriformes | Marine – Worldwide | Trichiurus lepturus |
| Whisker Hawkfish | Perciformes | Marine – Indo-Pacific | Cirrhitichthys oxycephalus |
| Whisker Pipefish | Syngnathiformes | Marine – Indo-Pacific | Syngnathus macrophthalmus |
| Whisker Searobin | Scorpaeniformes | Marine – Western Atlantic | Prionotus ruscarius |
| Whisker Shrimpfish | Syngnathiformes | Marine – Indo-Pacific | Centriscus scutatus |
| Whisker Sole | Pleuronectiformes | Marine – Eastern Atlantic | Monochirus hispidus |
| Whiskered Bandfish | Perciformes | Marine | Cepola sp. 1 |
| Whiskered Bass | Perciformes | Freshwater | Percichthys trucha |
| Whiskered Batfish | Perciformes | Marine – Western Pacific | Platax pinnatus |
| Whiskered Croaker | Perciformes | Marine | Umbrina cirrosa |
| Whiskered Darter | Perciformes | Freshwater | Percina roanoka |
| Whiskered Dogfish | Carcharhiniformes | Marine – North Pacific | Cirrhigaleus barbifer |
| Whiskered Dragonet | Perciformes | Marine – Indo-Pacific | Synchiropus marmoratus |
| Whiskered Eel | Anguilliformes | Marine | Leptocephalus caudilineatus |
| Whiskered Flounder | Pleuronectiformes | Marine – Indo-Pacific | Arnoglossus macrolophus |
| Whiskered Flyingfish | Beloniformes | Marine | Cheilopogon pinnatibarbatus |
| Whiskered Goatfish | Perciformes | Marine (Indo-Pacific) | Upeneus tragula |
| Whiskered Goby | Gobiiformes | Freshwater (Southeast Asia) | Hemiichthys aculeatus |
| Whiskered Grenadier | Gadiformes | Marine | Coelorinchus coelorinchus |
| Whiskered Grunt | Perciformes | Marine | Pomadasys stridens |
| Whiskered Jawfish | Perciformes | Marine – Western Atlantic | Opistognathus aurifrons |
| Whiskered Kingfish | Perciformes | Marine | Branchiostegus japonicus |
| Whiskered Monarch | Perciformes | Marine – Indo-Pacific | Monarcha melanopsis |
| Whiskered Moray | Anguilliformes | Marine | Gymnothorax barbulifer |
| Whiskered Mullet | Mugiliformes | Marine (Indo-Pacific) | Liza alata |
| Whiskered Sandperch | Trachiniformes | Marine | Parapercis nebulosa |
| Whiskered Sculpin | Scorpaeniformes | Marine | Icelinus filamentosus |
| Whiskered Searobin | Scorpaeniformes | Marine | Prionotus stephanophrys |
| Whiskered Shark | Carcharhiniformes | Marine | Galeorhinus galeus |
| Whiskered Sleeper | Gobiiformes | Freshwater/Brackish – Indo-Pacific | Eleotris fusca |
| Whiskered Sole | Pleuronectiformes | Marine | Solea nasuta |
| Whiskered Spinefoot | Perciformes | Marine | Siganus spinus |
| Whiskered Threadfin | Polynemiformes | Marine | Polydactylus plebeius |
| Whiskered Toby | Tetraodontiformes | Marine | Canthigaster valentini |
| Whiskered Triplefin | Blenniiformes | Marine | Tripterygius etheostomus |
| Whispering Goby | Gobiiformes | Marine – Indo-Pacific | Amblygobius bynoensis |
| Whissell's Blenny | Blenniiformes | Marine – Indo-Pacific | Ecsenius whisseli |
| Whistlefish | Perciformes | Marine | Chilomycterus reticulatus |
| Whistlefish Pipefish | Syngnathiformes | Marine – Indo-Pacific | Syngnathus whistlefish |
| Whistler Wrasse | Perciformes | Marine (Western Atlantic) | Bodianus opercularis |
| White Amur | Cypriniformes | Freshwater (Asia) | Ctenopharyngodon idella |
| White Anglerfish | Lophiiformes | Marine – North Atlantic | Lophius arboriferus |
| White Bar Triplefin | Blenniiformes | Marine – Indo-Pacific | Helcogramma ellioti |
| White Barbel | Cypriniformes | Freshwater | Barbus barbus |
| White Bass | Perciformes | Freshwater | Morone chrysops |
| White Bellied Pipefish | Syngnathiformes | Marine (Indo-Pacific) | Festucalex cinctus |
| White Blenny | Blenniiformes | Marine – Indo-Pacific | Ecsenius schroederi |
| White Bream | Cypriniformes | Freshwater | Blicca bjoerkna |
| White Brotula | Ophidiiformes | Marine – Western Atlantic | Brotula barbata |
| White Broussonet | Perciformes | Marine (Western Atlantic) | Scorpaena Broussonetii |
| White Buffalo | Cypriniformes | Freshwater (North America) | Ictiobus cyprinellus |
| White Butterflyfish | Perciformes | Marine – Indo-Pacific | Chaetodon lineolatus |
| White Cardinalfish | Perciformes | Marine – Western Atlantic | Apogon pseudomaculatus |
| White Catfish | Siluriformes | Freshwater | Ameiurus catus |
| White Chub | Cypriniformes | Freshwater – North America | Mylocheilus caurinus |
| White Cloud Mountain Minnow | Cypriniformes | Freshwater (China) | Tanichthys albonubes |
| White Cranchia | Teuthida | Marine – Pelagic | Cranchia scabra |
| White Crappie | Perciformes | Freshwater | Pomoxis annularis |
| White Croaker | Perciformes | Marine | Genyonemus lineatus |
| White Crouper | Perciformes | Marine – Western Atlantic | Epinephelus striatus |
| White Crucian Carp | Cypriniformes | Freshwater (Europe/Asia) | Carassius carassius |
| White Dace | Cypriniformes | Freshwater (Europe/Asia) | Leuciscus leuciscus |
| White Damselfish | Perciformes | Marine – Indo-Pacific | Plectroglyphidodon lacrymatus |
| White Deepsea Smelt | Osmeriformes | Marine – Pacific Ocean | Bathylagus pacificus |
| White Disc Fish | Perciformes | Freshwater (South America) | Symphysodon discus |
| White Dolly Varden | Salmoniformes | Freshwater (North America) | Salvelinus malma |
| White Dormer | Perciformes | Marine – Indo-Pacific | Calotomus carolinus |
| White Dotted Clingfish | Gobiesociformes | Marine – Indo-Pacific | Lepadichthys frenatus |
| White Dottyback | Perciformes | Marine – Indo-Pacific | Pseudochromis aldabraensis |
| White Drum | Perciformes | Marine | Pogonias cromis |
| White Eel | Anguilliformes | Marine – Indo-Pacific | Gymnothorax albimarginatus |
| White Featherfin | Perciformes | Marine – Indo-Pacific | Heniochus acuminatus |
| White Filefish | Tetraodontiformes | Marine – Indo-Pacific | Pseudalutarius nasicornis |
| White Fin Croaker | Perciformes | Marine – Eastern Pacific | Genyonemus lineatus |
| White Fin Grunt | Perciformes | Marine – Indo-Pacific | Pomadasys argyreus |
| White Fin Sea Catfish | Siluriformes | Brackish/Marine (South America) | Ariopsis bonillai |
| White Fin Tuna | Scombriformes | Marine (Worldwide) | Thunnus alalunga |
| White Fin Wolfish | Perciformes | Marine (North Pacific) | Anarhichas orientalis |
| White Flounder | Pleuronectiformes | Marine (Northwest Atlantic) | Pseudopleuronectes americanus |
| White Four-Eyed Fish | Cyprinodontiformes | Brackish/Freshwater (South America) | Anableps anableps |
| White Grunt | Perciformes | Marine (Western Atlantic) | Haemulon plumierii |
| White Hake | Gadiformes | Marine (Northwest Atlantic) | Urophycis chuss |
| White Horse Minnow | Cypriniformes | Freshwater (North America) | Mylocheilus caurinus |
| White Marlin | Perciformes | Marine (Atlantic Ocean) | Kajikia albidus |
| White Mouth Croaker | Perciformes | Marine | Micropogonias megalops |
| White Mouth Moray | Anguilliformes | Marine (Indo-Pacific) | Gymnothorax meleagris |
| White Mullet | Mugiliformes | Marine/Brackish | Mugil curema |
| White Perch | Perciformes | Freshwater | Morone americana |
| White Piranha | Characiformes | Freshwater (South America) | Serrasalmus rhombeus |
| White River Darter | Perciformes | Freshwater | Etheostoma euzonum |
| White River Shiner | Cypriniformes | Freshwater | Notropis albeolus |
| White River Speckled Dace | Cypriniformes | Freshwater | Rhinichthys osculus |
| White River Spinedace | Cypriniformes | Freshwater | Lepidomeda albivallis |
| White River Springfish | Cyprinodontiformes | Freshwater | Crenichthys baileyi |
| White River Valley Carp | Cypriniformes | Freshwater | Gila crassicauda |
| White Sea Bream | Spariformes | Marine | Diplodus sargus |
| White Seabass | Perciformes | Marine (Northeast Pacific) | Atractoscion nobilis |
| White Shark | Lamniformes | Marine (Worldwide) | Carcharodon carcharias |
| White Snapper | Perciformes | Marine (Western Pacific) | Pagrus auratus |
| White Spot Goatfish | Perciformes | Marine (Indo-Pacific) | Parupeneus chrysopleuron |
| White Spot Toby | Tetraodontiformes | Marine (Indo-Pacific) | Canthigaster janthinoptera |
| White Spotted Puffer | Tetraodontiformes | Marine | Arothron hispidus |
| White Sturgeon | Acipenseriformes | Freshwater | Acipenser transmontanus |
| White Sucker | Cypriniformes | Freshwater | Catostomus commersonii |
| White Threadfin Bream | Perciformes | Marine | Nemipterus virgatus |
| White Trevally | Carangiformes | Marine | Pseudocaranx dentex |
| White Turbot | Pleuronectiformes | Marine (Eastern Atlantic) | Rhombus maximus |
| White Whale | Artiodactyla | Marine (Arctic/Subarctic) | Delphinapterus leucas |
| White's Seahorse | Syngnathiformes | Marine | Hippocampus whitei |
| White's Snapper | Perciformes | Marine | Lutjanus whitei |
| White-Spotted Filefish | Tetraodontiformes | Marine | Cantherhines macrocephalus |
| White-Spotted Grunt | Perciformes | Marine (Indo-Pacific) | Diagramma pictum |
| White-Spotted Puffer | Tetraodontiformes | Marine (Indo-Pacific) | Arothron hispidus |
| White-Spotted Surgeonfish | Acanthuriformes | Marine | Acanthurus leucopareius |
| White-Striped Bass | Perciformes | Freshwater/Marine | Morone saxtalis |
| White-Striped Cardinalfish | Perciformes | Marine | Apogon albimaculosus |
| White-Striped Pipefish | Syngnathiformes | Marine (Indo-Pacific) | Dunckerocampus dactyliophorus |
| White-eared Wrasse | Perciformes | Marine | Halichoeres miniatus |
| White-edged Lyretail | Serraniformes | Marine | Variola albimarginata |
| White-eyed Moray | Anguilliformes | Marine | Gymnothorax thyrsoideus |
| White-fingered Goby | Gobiiformes | Marine | Acentrogobius nebulosus |
| White-finned Topminnow | Cyprinodontiformes | Freshwater | Fundulus notatus |
| White-footed Goby | Gobiiformes | Marine | Amblygobius pholegandros |
| White-fringed Blenny | Blenniiformes | Marine | Cirripectes castaneus |
| White-gilled Butterfish | Perciformes | Marine | Psenopsis anomala |
| White-headed Goby | Gobiiformes | Brackish/Freshwater | Glossogobius giuris |
| White-lined Blenny | Blenniiformes | Marine | Meiacanthus lineatus |
| White-lined Cardinalfish | Perciformes | Marine | Cheilodipterus lineatus |
| White-lined Soapfish | Perciformes | Marine | Diploprion bifasciatum |
| White-lipped Eel | Anguilliformes | Marine | Gymnothorax chilospilus |
| White-margin Surgeonfish | Acanthuriformes | Marine | Acanthurus albonianus |
| White-margin Unicornfish | Acanthuriformes | Marine | Naso annulatus |
| White-spotted Blenny | Blenniiformes | Marine (Mediterranean/Black Sea) | Parablennius tentacularis |
| White-spotted Conger | Anguilliformes | Marine | Conger myriaster |
| White-tail Damselfish | Perciformes | Marine | Pomacentrus chrysurus |
| Whitebait | Clupeiformes | Marine/Brackish | Various species (juvenile fish) |
| Whitebelly Threadfin Beryx | Beryciformes | Marine | Beryx mollis |
| Whitecheek Monocle Bream | Spariformes | Marine | Scolopsis bilineata |
| Whitecheek Sardine | Clupeiformes | Marine | Sardinella maderensis |
| Whitecheek Surgeonfish | Acanthuriformes | Marine | Acanthurus nigricans |
| Whitecheek Unicornfish | Acanthuriformes | Marine | Naso lituratus |
| Whiteface Batfish | Ephippiformes | Marine (Indo-Pacific) | Platax boersii |
| Whiteface Eel-Loach | Synbranchiformes | Freshwater – Neotropics | Synbranchus marmoratus |
| Whiteface Snake Eel | Anguilliformes | Marine | Ophichthus albicaudatus |
| Whiteface Toby | Tetraodontiformes | Marine – Indo-Pacific | Canthigaster janthinoptera |
| Whiteface Toothed Cod | Gadiformes | Marine | Muraenolepis microps |
| Whitefaced Blenny | Blenniiformes | Marine – Indo-Pacific | Salarias fasciatus |
| Whitefeather Squirrelfish | Beryciformes | Marine (Indo-Pacific) | Sargocentron caudimaculatum |
| Whitefin Cardinalfish | Perciformes | Marine – Indo-Pacific | Apogon exostigma |
| Whitefin Dace | Cypriniformes | Freshwater | Leuciscus leuciscus |
| Whitefin Goby | Gobiiformes | Marine | Gnatholepis anjeriana |
| Whitefin Lanternshark | Squaliformes | Marine – Western Atlantic | Etmopterus perryi |
| Whitefin Skate | Rajiformes | Marine – Eastern Atlantic | Raja alba |
| Whitefin Squirrelfish | Beryciformes | Marine | Sargocentron caudimaculatum |
| Whitefin Swellshark | Carcharhiniformes | Marine – Western Pacific | Cephaloscyllium albipinnum |
| Whitefin Topminnow | Cyprinodontiformes | Freshwater | Fundulus escambiae |
| Whitefin Wolf-eel | Perciformes | Marine – North Pacific | Anarhichas orientalis |
| Whitefin Wolf-herring | Clupeiformes | Marine | Chirocentrus nudus |
| Whitefin Wolfish | Perciformes | Marine | Anarhichas orientalis |
| Whitefin Worm Goby | Gobiiformes | Marine – Indo-Pacific | Kraemeria cuniculus |
| Whitefinned Drum | Perciformes | Marine (Western Atlantic) | Pareques acuminatus |
| Whitefinned Frogfish | Lophiiformes | Marine (Indo-Pacific) | Antennarius hispidus |
| Whitefinned Wrasse | Perciformes | Marine | Symphodus cinereus |
| Whitefish | Salmoniformes | Freshwater | Coregonus clupeaformis |
| Whitefish Pike | Esociformes | Freshwater – Northern Hemisphere | Esox lucius |
| Whiteflower Pipefish | Syngnathiformes | Marine – Indo-Pacific | Corythoichthys ocellatus |
| Whitehead Catfish | Siluriformes | Freshwater | Mystus montanus |
| Whitehead Pipefish | Syngnathiformes | Marine | Corythoichthys ocellatus |
| Whitehead's Flounder | Pleuronectiformes | Marine | Paralichthys lethostigma |
| Whitehead's Pipefish | Syngnathiformes | Marine – Indo-Pacific | Ichthyocampus carce |
| Whitehead's Reef Goby | Gobiiformes | Marine – Indo-Pacific | Exyrias whiteheadi |
| Whitehead's Sardinella | Clupeiformes | Marine | Sardinella longiceps |
| Whiteheaded Mullet | Mugiliformes | Marine/Brackish (Worldwide) | Mugil cephalus |
| Whitelined Bream | Spariformes | Marine | Diplodus sargus |
| Whitelined Grouper | Perciformes | Marine | Epinephelus coeruleopunctatus |
| Whitelined Triggerfish | Tetraodontiformes | Marine – Indo-Pacific | Sufflamen bursa |
| Whitemargin Stargazer | Perciformes | Marine (Indo-Pacific) | Uranoscopus albesca |
| Whitemargin Triggerfish | Tetraodontiformes | Marine – Indo-Pacific | Sufflamen albicaudatum |
| Whitemarked Toby | Tetraodontiformes | Marine – Indo-Pacific | Canthigaster margaritata |
| Whitemouth Croaker | Perciformes | Marine (Western Atlantic) | Micropogonias furnieri |
| Whitemouth Jack | Carangiformes | Marine | Uraspis candidula |
| Whitemouth Moray | Anguilliformes | Marine | Gymnothorax meleagris |
| Whitemouth Trevally | Carangiformes | Marine (Worldwide) | Uraspis secunda |
| Whiterump Snapper | Perciformes | Marine – Indo-Pacific | Lutjanus gibbus |
| Whitesaddle Goatfish | Perciformes | Marine – Indo-Pacific | Parupeneus ciliatus |
| Whiteside Skate | Rajiformes | Marine (Western Atlantic) | Raja eglanteria |
| Whitespotted Catshark | Carcharhiniformes | Marine – Northwest Pacific | Scyliorhinus torazame |
| Whitespotted Electric Ray | Torpediniformes | Marine – Eastern Atlantic | Torpedo torpedo |
| Whitespotted Filefish | Tetraodontiformes | Marine – Indo-Pacific | Cantherhines macrocephalus |
| Whitespotted Grouper | Perciformes | Marine – Indo-Pacific | Epinephelus coeruleopunctatus |
| Whitespotted Puffer | Tetraodontiformes | Marine – Indo-Pacific | Arothron hispidus |
| Whitestriped Goby | Gobiiformes | Marine (Indo-Pacific) | Amblyeleotris fasciata |
| Whitetail Gurnard | Perciformes | Marine (Eastern Atlantic) | Trigla lucerna |
| Whiting | Gadiformes | Marine | Merlangius merlangus |
| Wickler's Wrasse | Perciformes | Marine – Western Pacific | Cirrhilabrus wickleri |
| Wicklow Herring | Clupeiformes | Marine (Northeast Atlantic) | Clupea harengus |
| Wicklow's Blenny | Blenniiformes | Marine – Indo-Pacific | Ecsenius wicklowi |
| Wide-Barbels Flyingfish | Beloniformes | Marine | Cheilopogon arcticeps |
| Widemouth Blindcat | Siluriformes | Freshwater | Trogloglanis pattersoni |
| Widemouth Pipefish | Syngnathiformes | Marine (Eastern Atlantic/Mediterranean) | Syngnathus typhle |
| Widow Rockfish | Scorpaeniformes | Marine | Sebastes entomelas |
| Wiegmann's Catfish | Siluriformes | Freshwater – South America | Rhamdia wiegmanni |
| Wiener's Cardinalfish | Perciformes | Marine (Indo-Pacific) | Siphamia weberi |
| Wienerfish | Perciformes | Marine | Plectorhinchus cinctus |
| Wigglyfish | Anguilliformes | Marine | Gymnothorax rueppelliae |
| Wild Carp | Cypriniformes | Freshwater | Cyprinus carpio |
| Wilde's Scorpionfish | Scorpaeniformes | Marine – Eastern Pacific | Scorpaena wildei |
| Wilderness Catfish | Siluriformes | Freshwater (Asia) | Heteropneustes fossilis |
| Wiley's Lanternfish | Myctophiformes | Marine – Deep Sea | Lampanyctus wileyi |
| Wilfley's Goby | Gobiiformes | Marine – Eastern Atlantic | Gobius wilfleyi |
| Wilhelmina's Goby | Gobiiformes | Marine – Indo-Pacific | Trimma wilhelmii |
| Wilk's Cardinalfish | Perciformes | Marine (Western Pacific) | Apogon wilsoni |
| Will's Grunt | Perciformes | Marine – Western Atlantic | Pomadasys williana |
| Willapa Bay Minnow | Cypriniformes | Freshwater (North America) | Mylocheilus caurinus |
| Willcox Spinedace | Cypriniformes | Freshwater | Lepidomeda mollispinis |
| Willem's Dogfish | Squaliformes | Marine – Western Pacific | Squalus willemi |
| Williamson's Mudskipper | Gobiiformes | Brackish – Indo-Pacific | Periophthalmus williamsi |
| Willoughby's Triplefin | Blenniiformes | Marine (Eastern Atlantic) | Tripterygion delaisi |
| Willow Blenny | Blenniiformes | Marine – Eastern Atlantic | Parablennius gattorugine |
| Willow Minnow | Cypriniformes | Freshwater | Pimephales tenellus |
| Wilson's Flounder | Pleuronectiformes | Marine (Northwest Atlantic) | Limanda ferruginea |
| Winchell's Flounder | Pleuronectiformes | Marine – Eastern Pacific | Pleuronichthys ritteri |
| Windfish | Beloniformes | Marine | Hyporhamphus roberti |
| Windowpane Flounder | Pleuronectiformes | Marine | Scophthalmus aquosus |
| Windy Point Mullet | Mugiliformes | Marine – Australia | Aldrichetta forsteri |
| Winged Blenny | Blenniiformes | Freshwater – China | Pareuchiloglanis prolixus |
| Winged Dragonfish | Stomiiformes | Marine – Deep Sea | Malacosteus niger |
| Winged Pearly Razorfish | Perciformes | Marine – Indo-Pacific | Iniistius pavo |
| Winged Pipefish | Syngnathiformes | Marine – Indo-Pacific | Syngnathus biostomus |
| Winged Searobin | Scorpaeniformes | Marine – Western Atlantic | Prionotus alatus |
| Winter Flounder | Pleuronectiformes | Marine | Pseudopleuronectes americanus |
| Winter Skate | Rajiformes | Marine – Northwest Atlantic | Leucoraja ocellata |
| Wire Coral Goby | Gobiiformes | Marine – Indo-Pacific | Bryaninops yongei |
| Wire Needlefish | Beloniformes | Marine – Worldwide | Platybelone argalus |
| Wire Snake Eel | Anguilliformes | Marine – Western Atlantic | Myrichthys breviceps |
| Wire-tailed Filefish | Tetraodontiformes | Marine – Indo-Pacific | Pervagor spilosoma |
| Wiry Pipefish | Syngnathiformes | Marine | Syngnathus auliscus |
| Witch Fish | Pleuronectiformes | Marine (North Atlantic) | Glyptocephalus cynoglossus |
| Wobbegong Shark | Orectolobiformes | Marine | Orectolobus maculatus |
| Wolf Eel | Zoarciformes | Marine | Anarrhichthys ocellatus |
| Wolf Fish | Perciformes | Marine (North Atlantic/Pacific) | Anarhichadidae |
| Wolf herring | Clupeiformes | Marine (Indo-Pacific) | Chirocentrus dorab |
| Wolffish | Perciformes | Marine (North Atlantic) | Anarhichas lupus |
| Wolfish | Perciformes | Marine | Anarhichas lupus |
| Wolfish Scabbardfish | Perciformes | Deep Marine (North Atlantic) | Aphanopus carbo |
| Wonder Blenny | Blenniiformes | Marine | Parablennius gattorugine |
| Wood Catfish | Siluriformes | Freshwater (Asia) | Heteropneustes fossilis |
| Wood Stargazer | Perciformes | Marine | Astroscopus sexspinus |
| Wood's Flounder | Pleuronectiformes | Marine (Western Atlantic) | Paralichthys lethostigma |
| Wood's Sculpin | Scorpaeniformes | Freshwater – North America | Cottus woodsii |
| Wood's Spotted Goby | Gobiiformes | Marine – Indo-Pacific | Asterropteryx woodi |
| Woodland Sculpin | Scorpaeniformes | Freshwater (North America) | Cottus confusus |
| Woods Hole Sculpin | Scorpaeniformes | Freshwater (North America) | Cottus glaber |
| Woolly Sculpin | Scorpaeniformes | Marine | Clinocottus analis |
| Wopti Frogfish | Lophiiformes | Marine – Indonesia | Antennarius wopti |
| Worm Blenny | Blenniiformes | Marine – Indo-Pacific | Plagiotremus tapeinosoma |
| Worm Eel | Anguilliformes | Marine | Myrophis platyrhinus |
| Worm Goby | Gobiiformes | Marine | Brachyamblyopus brachysoma |
| Worm Pipefish | Syngnathiformes | Marine | Nerophis lumbriciformis |
| Wormfish | Gobiiformes | Marine | Pholidichthys leucotaenia |
| Worrell's Scorpionfish | Scorpaeniformes | Marine – Western Pacific | Scorpaena worrelli |
| Wounded Darter | Perciformes | Freshwater | Etheostoma vulnerata |
| Wrasse | Perciformes | Marine | Labridae |
| Wrasse Basslet | Perciformes | Marine – Caribbean | Liopropoma aberrans |
| Wrasse Goby | Gobiiformes | Marine (Indo-Pacific) | Valenciennea strigata |
| Wrasse Grouper | Perciformes | Marine (Indo-Pacific) | Plectropomus laevis |
| Wrassespotted Blenny | Blenniiformes | Marine – Indo-Pacific | Omobranchus ferox |
| Wreckfish | Perciformes | Marine | Polyprion americanus |
| Wrought Iron Butterflyfish | Perciformes | Marine (Northwest Pacific) | Chaetodon nippon |
| Wrymouth | Perciformes | Marine – North Atlantic | Cryptacanthodes maculatus |