There are 445 fish that start with the letter F, from Faccio’s Spined Loach to Fusilier Fish. 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: Faccio's Spined Loach
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Sabanejewia larvata
Name: Facenosed Argonaut
Order: Gadiformes
Habitat: Marine
Scientific name: Macruronus novaezelandiae
Name: Fail-snout Seahorse
Order: Syngnathiformes
Habitat: Marine
Scientific name: Hippocampus bargibanti
Name: Failfish
Order: Perciformes
Habitat: Marine – Coastal
Scientific name: Bathygobius fuscus
Name: Fairy Basslet
Order: Perciformes
Habitat: Coral reefs (Atlantic Ocean)
Scientific name: Gramma loreto
Name: Fairy Goby
Order: Gobiiformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Discordipinna griessingeri
Name: Fairy Wrasse
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Cirrhilabrus exquisitus
Name: Falcate Batfish
Order: Ephippiformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Platax pinnatus
Name: Falcate Moongazer
Order: Perciformes
Habitat: Marine – Reef
Scientific name: Parascorpaena falcata
Name: Falco's Flathead
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Elates ransonnetii
Name: False Arcuated Blenny
Order: Blenniiformes
Habitat: Coral reefs
Scientific name: Salarias falsus
Name: False Arulius Barb
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Dawkinsia assimilis
Name: False Barracuda
Order: Scombriformes
Habitat: Pelagic marine (tropical)
Scientific name: Acanthocybium solandri
Name: False Bumblebee Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Leiocassis siamensis
Name: False Catshark
Order: Carcharhiniformes
Habitat: Deep sea (worldwide)
Scientific name: Pseudotriakis microdon
Name: False Cleaner Woby
Order: Perciformes
Habitat: Marine
Scientific name: Aspidontus taeniatus
Name: False Cleanerfish
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Aspidontus taeniatus
Name: False Clown Anemonefish
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Amphiprion ocellaris
Name: False Garfish
Order: Beloniformes
Habitat: Coastal waters (Indo-Pacific)
Scientific name: Hyporhamphus picarti
Name: False Gurnard
Order: Scorpaeniformes
Habitat: Coastal marine (Indo-Pacific)
Scientific name: Pseudocardium
Name: False Harlequin Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Hopliancistrus
Name: False Lizardfish
Order: Aulopiformes
Habitat: Marine
Scientific name: Synodus lucioceps
Name: False Moorish Idol
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Heniochus acuminatus
Name: False Moray
Order: Anguilliformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Kaupichthys hyoproroides
Name: False Peacock Angelfish
Order: Perciformes
Habitat: Marine
Scientific name: Centropyge debelius
Name: False Perch
Order: Perciformes
Habitat: Freshwater streams and lakes
Scientific name: Percichthys trucha
Name: False Scat
Order: Scorpaeniformes
Habitat: Coastal marine (Indo-Pacific)
Scientific name: Pseudoscatenarius barbatus
Name: False Scats
Order: Perciformes
Habitat: Freshwater
Scientific name: Selenotoca multifasciata
Name: False Scorpionfish
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Scorpaenopsis cotticeps
Name: False Spikefish
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Triacanthodes anomalus
Name: False Staffed Loach
Order: Cypriniformes
Habitat: Freshwater streams
Scientific name: Schistura falsea
Name: False Stonefish
Order: Scorpaeniformes
Habitat: Coastal marine (Indo-Pacific)
Scientific name: Synanceia horrida
Name: False Trevally
Order: Carangiformes
Habitat: Coastal marine (Indo-Pacific)
Scientific name: Lactarius lactarius
Name: False Unicornfish
Order: Acanthuriformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Naso minor
Name: False Weever
Order: Perciformes
Habitat: Marine
Scientific name: Paracanthistius
Name: Falsestripe Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Cirripectes imitator
Name: Fan-bellied Sea Snake
Order: Elapiformes
Habitat: Marine
Scientific name: Hydrophis platurus
Name: Fan-lipped Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Omobranchus punctatus
Name: Fan-lipped Loach
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Gyrinocheilus aymonieri
Name: Fan-tailed Stingray
Order: Myliobatiformes
Habitat: Marine
Scientific name: Taeniura grabata
Name: Fanbelly
Order: Perciformes
Habitat: Deep sea
Scientific name: Macrourus berglax
Name: Fanfin
Order: Lophiiformes
Habitat: Marine – Deep Water
Scientific name: Caulophryne jordani
Name: Fanfin Angler
Order: Lophiiformes
Habitat: Marine
Scientific name: Caulophryne baculosa
Name: Fanfin Flounder
Order: Pleuronectiformes
Habitat: Coastal marine waters
Scientific name: Samaris cristatus
Name: Fanfin Lanternshark
Order: Squaliformes
Habitat: Deep sea (Atlantic Ocean)
Scientific name: Etmopterus spinax
Name: Fanfin Sculpin
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Caracanthus maculatus
Name: Fanfish
Order: Perciformes
Habitat: Deep water (Atlantic Ocean)
Scientific name: Pteraclis aesticola
Name: Fang Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Plagiotremus azurlineatus
Name: Fanged Blenny
Order: Blenniiformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Meiacanthus atrodorsalis
Name: Fangjaw
Order: Stomiiformes
Habitat: Marine – Deep Water
Scientific name: Bathophilus fleischeri
Name: Fangtooth
Order: Stomiiformes
Habitat: Deep sea (mesopelagic to bathypelagic)
Scientific name: Anoplogaster cornuta
Name: Fangtooth Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Enchelycore anatina
Name: Fantail Bandfish
Order: Ophidiiformes
Habitat: Coastal marine waters
Scientific name: Cepola macrophthalma
Name: Fantail Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Samaris cristatus
Name: Fantail Goldfish
Order: Cypriniformes
Habitat: Freshwater ponds and slow-moving waters (domesticated)
Scientific name: Carassius auratus
Name: Fantail Guppy
Order: Cyprinodontiformes
Habitat: Freshwater streams and rivers (South America)
Scientific name: Poecilia reticulata
Name: Fantail Pipefish
Order: Syngnathiformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Trachyrhamphus bicoarctatus
Name: Fantail Sole
Order: Pleuronectiformes
Habitat: Deep water (Australia/New Zealand)
Scientific name: Peltorhamphus latus
Name: Fantastic Livebearer
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Poecilia reticulata
Name: Far Eastern Cod
Order: Gadiformes
Habitat: Boreal marine waters
Scientific name: Gadus macrocephalus
Name: Fardus
Order: Cypriniformes
Habitat: Freshwater rivers
Scientific name: Varicorhinus fardus
Name: Farm-raised Tilapia
Order: Cichliformes
Habitat: Freshwater – Farmed
Scientific name: Oreochromis niloticus
Name: Farmers Fish
Order: Perciformes
Habitat: Coral reefs (Pacific Ocean)
Scientific name: Labracodon encaustus
Name: Fat Cod
Order: Gadiformes
Habitat: Deep water (Atlantic Ocean)
Scientific name: Morula morula
Name: Fat Greenling
Order: Scorpaeniformes
Habitat: Coastal (North Pacific)
Scientific name: Hexagrammos stelleri
Name: Fat Sleeper
Order: Perciformes
Habitat: Freshwater and brackish (North America)
Scientific name: Eleotris amblyopsis
Name: Fat Sleeper Goby
Order: Gobiiformes
Habitat: Freshwater
Scientific name: Dormitator maculatus
Name: Fathead Minnow
Order: Cypriniformes
Habitat: Freshwater streams and lakes (North America)
Scientific name: Pimephales promelas
Name: Fathead Sculpin
Order: Perciformes
Habitat: Freshwater streams
Scientific name: Cottus asper
Name: Faughni Anchovy
Order: Clupeiformes
Habitat: Marine/Brackish
Scientific name: Setipinna faughni
Name: Faughri
Order: Clupeiformes
Habitat: Coastal marine (Indo-Pacific)
Scientific name: Thrissocles setirostris
Name: Feather Blenny
Order: Blenniiformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Plagiotremus azimus
Name: Featherback
Order: Osteoglossiformes
Habitat: Freshwater rivers and lakes (Asia)
Scientific name: Chitala ornata
Name: Featherback Knifefish
Order: Osteoglossiformes
Habitat: Freshwater rivers (Southeast Asia)
Scientific name: Chitala blanci
Name: Featherface Sculpin
Order: Scorpaeniformes
Habitat: Coastal marine (Pacific Ocean)
Scientific name: Artedius notius
Name: Featherfin Sculpin
Order: Scorpaeniformes
Habitat: Coastal marine (North America)
Scientific name: Oligocottus perditus
Name: Featherfin Synodontis
Order: Siluriformes
Habitat: Freshwater (Africa)
Scientific name: Synodontis eupterus
Name: Featherstar Pipefish
Order: Syngnathiformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Micrognathus brevirostris
Name: Feltfin Sculpin
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Hemitripterus bolini
Name: Feltfish
Order: Aulopiformes
Habitat: Deep sea
Scientific name: Scopelarchus analis
Name: Fence Eel
Order: Anguilliformes
Habitat: Marine – Reef
Scientific name: Muraena fence
Name: Fencer Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Nettastoma melanurum
Name: Fencing Blenny
Order: Blenniiformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Entomacrodus stellifer
Name: Fender Blenny
Order: Blenniiformes
Habitat: Marine – Coastal
Scientific name: Entomacrodus stellifer
Name: Fenderfish
Order: Aulopiformes
Habitat: Deep sea (Atlantic Ocean)
Scientific name: Talismania bifurcata
Name: Fenestra Ray
Order: Myliobatiformes
Habitat: Marine
Scientific name: Raja clavata
Name: Fenner's Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax fenneri
Name: Fernandez Brotula
Order: Ophidiiformes
Habitat: Deep sea
Scientific name: Brotula fernandeziana
Name: Fernandez's Eelpout
Order: Perciformes
Habitat: Marine
Scientific name: Lycodes fernandezianus
Name: Ferocious Eelpout
Order: Perciformes
Habitat: Marine
Scientific name: Lycodes ferox
Name: Ferocious Piranha
Order: Characiformes
Habitat: Freshwater – Rivers
Scientific name: Serrasalmus rhombeus
Name: Ferocious Snakehead
Order: Perciformes
Habitat: Freshwater
Scientific name: Channa ferox
Name: Ferox Trout
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Salmo trutta ferox
Name: Ferruginous Hogfish
Order: Perciformes
Habitat: Marine
Scientific name: Bodianus sebae
Name: Ferruginous Shark
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Atelomycterus marmoratus
Name: Feverfish
Order: Perciformes
Habitat: Marine
Scientific name: Pristilepis oligolepis
Name: Few-Spined Scorpionfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Setarches guentheri
Name: Fibrous Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Cirripectes filamentosus
Name: Fickle Barbel
Order: Cypriniformes
Habitat: Freshwater rivers
Scientific name: Luciobarbus capito
Name: Fickle Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Pseudorhombus dupliciocellatus
Name: Fickle Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Discordipinna griessingeri
Name: Fiddler Ray
Order: Myliobatiformes
Habitat: Coastal marine (Australia)
Scientific name: Trygonorrhina fasciata
Name: Fierasfer
Order: Ophidiiformes
Habitat: Commensal with invertebrates
Scientific name: Carapus bermudensis
Name: Fierce Dragonet
Order: Perciformes
Habitat: Deep sea
Scientific name: Centrodraco oregonus
Name: Fierce Snakehead
Order: Perciformes
Habitat: Freshwater – Rivers/Lakes
Scientific name: Channa argus
Name: Fiery Sea Bass
Order: Perciformes
Habitat: Marine
Scientific name: Centropristis striata
Name: Fifteen-spined Stickleback
Order: Gasterosteiformes
Habitat: Marine coastal
Scientific name: Spinachia spinachia
Name: Fifty-Three Spot Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogonichthys ocellatus
Name: Fightfin Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Ecsenius yaeyamaensis
Name: Figi Wrasse
Order: Perciformes
Habitat: Coral reefs
Scientific name: Symphorus figiensis
Name: Figure-eight Puffer
Order: Tetraodontiformes
Habitat: Freshwater
Scientific name: Tetraodon biocellatus
Name: Figured Toadfish
Order: Batrachoidiformes
Habitat: Marine
Scientific name: Sanopus astrifer
Name: Fiji Blue Devil
Order: Perciformes
Habitat: Coral reefs (Fiji)
Scientific name: Chrysiptera cyanea
Name: Fiji Damselfish
Order: Perciformes
Habitat: Marine
Scientific name: Amblyglyphidodon orbicularis
Name: Fijian Blue Devil
Order: Perciformes
Habitat: Marine
Scientific name: Chrysiptera cymatilis
Name: Fijian Blue Devil Damselfish
Order: Perciformes
Habitat: Marine
Scientific name: Chrysiptera hemicyanea
Name: Filament Barb
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Puntius filamentosus
Name: Filament Blenny
Order: Perciformes
Habitat: Marine – Coastal
Scientific name: Omobranchus elongatus
Name: Filament Ghost Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Solenostomus leptosoma
Name: Filament Snapper
Order: Perciformes
Habitat: Marine
Scientific name: Symphorus nematophorus
Name: Filament Swordtail
Order: Cyprinodontiformes
Habitat: Freshwater streams
Scientific name: Xiphophorus filamentosus
Name: Filament-finned Parrotfish
Order: Perciformes
Habitat: Marine
Scientific name: Scarus altipinnis
Name: Filament-finned Rockfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Sebastes ciliatus
Name: Filamented Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Pleuronectes microcephalus
Name: Filamented Triggerfish
Order: Tetraodontiformes
Habitat: Marine – Reef
Scientific name: Balistoides filamentosus
Name: Filamentous Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Plagiotremus spurrelli
Name: Filamentous Flounder
Order: Pleuronectiformes
Habitat: Deep water (Pacific Ocean)
Scientific name: Pleuronichthys coenosus
Name: Filamentous Frogfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Antennarius striatus
Name: Filefish
Order: Tetraodontiformes
Habitat: Coral reefs and rocky bottoms (tropical and subtropical)
Scientific name: Oxymonacanthus longirostris
Name: Fimbriated Moray
Order: Anguilliformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Gymnothorax fimbriatus
Name: Fin Spine Loach
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Nemacheilus corica
Name: Fin-back Scabbardfish
Order: Perciformes
Habitat: Marine
Scientific name: Benthodesmus elongatus
Name: Fincomb Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Cirripectes castaneus
Name: Fine-barred Grunter
Order: Perciformes
Habitat: Freshwater
Scientific name: Mesopristes argenteus
Name: Fine-faced Anchovy
Order: Engrauliformes
Habitat: Marine
Scientific name: Coilia dussumieri
Name: Fine-faced Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax microstomus
Name: Fine-lined Boxfish
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Ostracion rhinorhynchos
Name: Fine-scale Dragonfish
Order: Stomiiformes
Habitat: Marine – Deep Water
Scientific name: Malacosteus niger
Name: Fine-scaled Dragonet
Order: Perciformes
Habitat: Marine
Scientific name: Callionymus doryssus
Name: Fine-scaled Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Bothus mancus
Name: Fine-speckled Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax isinglass
Name: Fine-spotted Anglerfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Lophius setigerus
Name: Fine-spotted Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax isingteena
Name: Fine-toothed Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogon hyalosoma
Name: Fine-toothed Shark
Order: Carcharhiniformes
Habitat: Coastal marine (Atlantic Ocean)
Scientific name: Carcharhinus isodon
Name: Finescale Codling
Order: Gadiformes
Habitat: Deep water (Australia/New Zealand)
Scientific name: Macruronus novaezelandiae
Name: Finescale Menhaden
Order: Clupeiformes
Habitat: Coastal marine (Atlantic Ocean)
Scientific name: Brevoortia patronus
Name: Finescale Triggerfish
Order: Tetraodontiformes
Habitat: Coral reefs (Pacific Ocean)
Scientific name: Balistes polylepis
Name: Finetooth Flounder
Order: Pleuronectiformes
Habitat: Coastal marine waters
Scientific name: Perissias taeniopterus
Name: Finfish
Order: Various
Habitat: Various
Scientific name: Various
Name: Finger Fish
Order: Perciformes
Habitat: Brackish/Marine (Indo-Pacific)
Scientific name: Monodactylus argenteus
Name: Fingered Dragonet
Order: Perciformes
Habitat: Marine
Scientific name: Dactylopus dactylopus
Name: Fingerfin
Order: Beryciformes
Habitat: Marine
Scientific name: Macrurocyttus acanthopodus
Name: Fingerfish
Order: Perciformes
Habitat: Coastal marine and brackish (Indo-Pacific)
Scientific name: Monodactylus argenteus
Name: Fingerling
Order: Various
Habitat: Various (freshwater/marine)
Scientific name: Various (young fish)
Name: Fingerprint Blenny
Order: Perciformes
Habitat: Freshwater
Scientific name: Omobranchus ferox
Name: Finished Rockfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Sebastes melanops
Name: Finke River Goby
Order: Gobiiformes
Habitat: Freshwater
Scientific name: Chlamydogobius eremius
Name: Finned Lizardfish
Order: Aulopiformes
Habitat: Marine
Scientific name: Synodus binotatus
Name: Finned Loach
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Acanthopsoides robertsi
Name: Finnish Scad
Order: Carangiformes
Habitat: Coastal (North Atlantic)
Scientific name: Trachurus trachurus
Name: Finspot Wrasse
Order: Perciformes
Habitat: Marine – Reef
Scientific name: Halichoeres melanurus
Name: Finstriped Seabream
Order: Spariformes
Habitat: Marine
Scientific name: Boops lineatus
Name: Fintail Carpetshark
Order: Orectolobiformes
Habitat: Coastal marine (Australia)
Scientific name: Brachaelurus waddi
Name: Fir-cone Fish
Order: Beryciformes
Habitat: Marine – Deep Water
Scientific name: Monocentris japonica
Name: Fire Barb
Order: Cypriniformes
Habitat: Freshwater streams
Scientific name: Puntius conchonius
Name: Fire Dart
Order: Perciformes
Habitat: Marine
Scientific name: Ptereleotris evides
Name: Fire Dartfish
Order: Perciformes
Habitat: Marine
Scientific name: Nemateleotris magnifica
Name: Fire Eel
Order: Synbranchiformes
Habitat: Freshwater rivers (Southeast Asia)
Scientific name: Mastacembelus erythrotaenia
Name: Fire Goby
Order: Perciformes
Habitat: Marine
Scientific name: Nemateleotris helfrichi
Name: Fire Red Dwarf Gourami
Order: Anabantiformes
Habitat: Freshwater
Scientific name: Trichogaster lalius
Name: Fire Shrimpgoby
Order: Gobiiformes
Habitat: Marine – Reef
Scientific name: Amblyeleotris guttata
Name: Firefish
Order: Scorpaeniformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Pterois volitans
Name: Firemouth Cichlid
Order: Perciformes
Habitat: Freshwater
Scientific name: Thorichthys meeki
Name: Firesnout Goby
Order: Perciformes
Habitat: Marine
Scientific name: Lythrypnus dalli
Name: Firetail Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Stonogobiops nematodes
Name: Firetail Goodeid
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Xenotoca variata
Name: Firm Javelin
Order: Perciformes
Habitat: Marine
Scientific name: Pomadasys argyreus
Name: Firmament Jawfish
Order: Perciformes
Habitat: Marine
Scientific name: Opistognathus castelnaui
Name: First Sergeant
Order: Perciformes
Habitat: Marine
Scientific name: Abudefduf sexfasciatus
Name: First Sergeant Major
Order: Perciformes
Habitat: Marine
Scientific name: Abudefduf vaigiensis
Name: Fischer's Anglerfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Lophius piscatorius
Name: Fish Doctor
Order: Siluriformes
Habitat: Freshwater rivers and lakes (Africa)
Scientific name: Schilbe mystus
Name: Fish Eagle Ray
Order: Myliobatiformes
Habitat: Marine
Scientific name: Aetomylaeus caeruleofasciatus
Name: Fish Hook Sole
Order: Pleuronectiformes
Habitat: Coastal marine waters
Scientific name: Pleuronectes microcephalus
Name: Fish-Eating Batfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Ogcocephalus vespertilio
Name: Fishes of the Deep
Order: Stomiiformes
Habitat: Deep sea
Scientific name: Stomiidae
Name: Five Barred Parrotfish
Order: Perciformes
Habitat: Marine
Scientific name: Scarus tricolor
Name: Five-Spined Stickleback
Order: Gasterosteiformes
Habitat: Freshwater
Scientific name: Culaea inconstans
Name: Five-banded Barbel
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Puntius tetrazona
Name: Five-barred Goatfish
Order: Perciformes
Habitat: Marine
Scientific name: Parupeneus trifasciatus
Name: Five-finger Rockcod
Order: Perciformes
Habitat: Coral reefs
Scientific name: Cephalopholis boenak
Name: Five-finger Threadfin Bream
Order: Perciformes
Habitat: Marine
Scientific name: Nemipterus quinquelineatus
Name: Five-lined Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Ecsenius bathi
Name: Five-lined Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogon angustatus
Name: Five-lined Coris
Order: Perciformes
Habitat: Marine
Scientific name: Coris gaimard
Name: Five-lined Rockfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Sebastes nigrocinctus
Name: Five-lined Spinefoot
Order: Perciformes
Habitat: Marine
Scientific name: Siganus luridus
Name: Five-spot Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Paralichthys olivaceus
Name: Five-spot Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Paracheilinus filamentosus
Name: Five-spotted Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Enneapterygius leucopogon
Name: Five-spotted Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Bothus pantherinus
Name: Fiveband Swordtail
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Xiphophorus evelynae
Name: Fivefinger Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Decodon pacificus
Name: Fivegill Shark
Order: Hexanchiformes
Habitat: Marine
Scientific name: Hexanchus griseus
Name: Fivelined Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Cheilodipterus quinquelineatus
Name: Fivespot Barb
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Puntius eugrammus
Name: Fivespot Wrasse
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Anampses caeruleopunctatus
Name: Fixed-jaw Sole
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Dexillus macrolepis
Name: Fjord Cod
Order: Gadiformes
Habitat: Marine
Scientific name: Boreogadus saida
Name: Flag Blenny
Order: Blenniiformes
Habitat: Coral reefs
Scientific name: Emblemarina hyposticta
Name: Flag Cichlid
Order: Perciformes
Habitat: Freshwater rivers and lakes (South America)
Scientific name: Mesonauta festivus
Name: Flag Wrasse
Order: Perciformes
Habitat: Marine – Reef
Scientific name: Goniistius zonatus
Name: Flagfin Angelfish
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Apolemichthys trimaculatus
Name: Flagfin Mojarra
Order: Perciformes
Habitat: Coastal marine and brackish (Atlantic Ocean)
Scientific name: Eucinostomus melanopterus
Name: Flagfin Squirrelfish
Order: Beryciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Sargocentron rubrum
Name: Flagtail Catfish
Order: Siluriformes
Habitat: Freshwater rivers (South America)
Scientific name: Phractocephalus hemioliopterus
Name: Flagtail Catshark
Order: Carcharhiniformes
Habitat: Deep Sea (North Pacific)
Scientific name: Galeus flagellifer
Name: Flagtail Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Priolepis semidoliata
Name: Flagtail Perch
Order: Perciformes
Habitat: Coastal marine and brackish (Indo-Pacific)
Scientific name: Kuhlia mugil
Name: Flakey Nipplefish
Order: Perciformes
Habitat: Marine – Deep Water
Scientific name: Bregmaceros batamensis
Name: Flame Angelfish
Order: Perciformes
Habitat: Coral reefs (Pacific Ocean)
Scientific name: Centropyge loriculus
Name: Flame Anthias
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Nemanthias carberryi
Name: Flame Cardinalfish
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Apogon flammeus
Name: Flame Hawkfish
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Neocirrhites armatus
Name: Flamed Boxfish
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Ostracion flammulatum
Name: Flamefish
Order: Perciformes
Habitat: Marine
Scientific name: Apogon maculatus
Name: Flametail Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Meiacanthus kamoharai
Name: Flamingo Tilefish
Order: Perciformes
Habitat: Marine
Scientific name: Malacanthus plumieri
Name: Flannelmouth Sculpin
Order: Scorpaeniformes
Habitat: Marine coastal
Scientific name: Triglops macellus
Name: Flapjack Devilfish
Order: Myliobatiformes
Habitat: Marine – Coastal
Scientific name: Gymnura bimaculata
Name: Flapnose Houndshark
Order: Carcharhiniformes
Habitat: Coastal marine (Indo-Pacific)
Scientific name: Scoliodon laticaudus
Name: Flasher Basslet
Order: Perciformes
Habitat: Coral reefs (Atlantic Ocean)
Scientific name: Gramma melacara
Name: Flasher Wrasse
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Paracheilinus filamentosus
Name: Flashlight Fish
Order: Beryciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Anomalops katoptron
Name: Flat Lizardfish
Order: Aulopiformes
Habitat: Coastal (Indo-Pacific)
Scientific name: Synodus similis
Name: Flat Needlefish
Order: Beloniformes
Habitat: Pelagic marine (tropical and subtropical)
Scientific name: Ablennes hians
Name: Flat Wrasse
Order: Perciformes
Habitat: Marine – Coastal
Scientific name: Symphodus rostratus
Name: Flat-faced Frogfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Antennarius commerson
Name: Flat-faced Mullet
Order: Mugiliformes
Habitat: Marine
Scientific name: Liza alata
Name: Flat-headed Catfish
Order: Siluriformes
Habitat: Freshwater rivers
Scientific name: Pylodictis olivaris
Name: Flatback Goby
Order: Perciformes
Habitat: Freshwater
Scientific name: Glossogobius giuris
Name: Flatfish
Order: Pleuronectiformes
Habitat: Coastal marine (worldwide)
Scientific name: Various
Name: Flathead
Order: Scorpaeniformes
Habitat: Coastal marine (Indo-Pacific)
Scientific name: Platycephalus fuscus
Name: Flathead Catfish
Order: Siluriformes
Habitat: Freshwater rivers and lakes (North America)
Scientific name: Pylodictis olivaris
Name: Flathead Grey Mullet
Order: Mugiliformes
Habitat: Coastal marine and brackish (worldwide)
Scientific name: Mugil cephalus
Name: Flathead Gudgeon
Order: Gobiiformes
Habitat: Freshwater – Rivers/Lakes
Scientific name: Philypnodon grandiceps
Name: Flathead Mullet
Order: Mugiliformes
Habitat: Coastal/Estuarine (Worldwide)
Scientific name: Mugil cephalus
Name: Flathead Sole
Order: Pleuronectiformes
Habitat: Deep water (Pacific Ocean)
Scientific name: Hippoglossoides elassodon
Name: Flatland Minnow
Order: Cypriniformes
Habitat: Freshwater streams (North America)
Scientific name: Pimephales tenellus
Name: Flatnose Cod
Order: Gadiformes
Habitat: Deep sea
Scientific name: Austrancodraco megalepis
Name: Flatnose Codling
Order: Gadiformes
Habitat: Marine
Scientific name: Macrourus berglax
Name: Flatnose Shark
Order: Hexanchiformes
Habitat: Marine
Scientific name: Hexanchus griseus
Name: Flattail Croaker
Order: Perciformes
Habitat: Marine
Scientific name: Umbrina roncador
Name: Flatworm
Order: Platyhelminthes
Habitat: Marine
Scientific name: Pseudobiceros bedfordi
Name: Flatworm Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Plagiotremus tapeinosoma
Name: Flavius Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Halichoeres flaviceps
Name: Fleetfin Sculpin
Order: Scorpaeniformes
Habitat: Marine coastal
Scientific name: Artediellus scaber
Name: Fleshy-lipped Mullet
Order: Mugiliformes
Habitat: Marine
Scientific name: Oedalechilus labeo
Name: Flier
Order: Perciformes
Habitat: Freshwater lakes and swamps (North America)
Scientific name: Centrarchus macropterus
Name: Flier Sunfish
Order: Perciformes
Habitat: Freshwater – Ponds/Lakes
Scientific name: Centrarchus macropterus
Name: Floating Eel
Order: Anguilliformes
Habitat: Freshwater/Brackish/Marine – Migratory
Scientific name: Anguilla rostrata
Name: Floating Frogfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Antennarius analis
Name: Floral Snakelet
Order: Perciformes
Habitat: Marine
Scientific name: Leptoclinus maculatus
Name: Floral Wrasse
Order: Perciformes
Habitat: Marine – Reef
Scientific name: Halichoeres chloropterus
Name: Flores Cardinalfish
Order: Perciformes
Habitat: Coral reefs
Scientific name: Apogon flores
Name: Flores Grouper
Order: Perciformes
Habitat: Marine
Scientific name: Epinephelus coioides
Name: Florida Barred Serranellus
Order: Perciformes
Habitat: Marine
Scientific name: Serranellus subligarius
Name: Florida Conger Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Conger oceanicus
Name: Florida Gar
Order: Lepisosteiformes
Habitat: Freshwater rivers and lakes (North America)
Scientific name: Lepisosteus platyrhincus
Name: Florida Grunt
Order: Perciformes
Habitat: Coastal (Western Atlantic)
Scientific name: Haemulon plumierii
Name: Florida Halibut
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Paralichthys lethostigma
Name: Florida Hogfish
Order: Perciformes
Habitat: Nearshore marine
Scientific name: Lachnolaimus maximus
Name: Florida Pompano
Order: Perciformes
Habitat: Coastal marine (Atlantic Ocean)
Scientific name: Trachinotus carolinus
Name: Flounder
Order: Pleuronectiformes
Habitat: Coastal marine (temperate)
Scientific name: Platichthys flesus
Name: Flower Cod
Order: Perciformes
Habitat: Deep sea
Scientific name: Symphysanodon berryi
Name: Flower Goby
Order: Perciformes
Habitat: Marine
Scientific name: Amblyeleotris periophthalma
Name: Flower Loach
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Botia kubotai
Name: Flower Skate
Order: Rajiformes
Habitat: Marine
Scientific name: Leucoraja fullonica
Name: Flower Snapper
Order: Perciformes
Habitat: Marine
Scientific name: Pristipomoides zonatus
Name: Flowerhorn Cichlid
Order: Perciformes
Habitat: Freshwater (domesticated)
Scientific name: Cichlasoma spp. (hybrid)
Name: Flowerpot Coral Goby
Order: Gobiiformes
Habitat: Marine – Reef
Scientific name: Gobiodon histrio
Name: Flowerpot Coral Gourami
Order: Anabantiformes
Habitat: Freshwater streams
Scientific name: Trichopsis schalleri
Name: Flowery Cod
Order: Perciformes
Habitat: Marine
Scientific name: Epinephelus fuscoguttatus
Name: Fluffy Sculpin
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Oligocottus snyderi
Name: Fluorescent Cardinalfish
Order: Perciformes
Habitat: Coral reefs
Scientific name: Apogon fluorescens
Name: Fluta Goby
Order: Gobiiformes
Habitat: Freshwater and brackish (Asia)
Scientific name: Fluta alba
Name: Fluted Coral Goby
Order: Perciformes
Habitat: Marine
Scientific name: Gobiodon rivulatus
Name: Fly River Garfish
Order: Beloniformes
Habitat: Freshwater – Rivers
Scientific name: Arrhamphus sclerolepis
Name: Fly-spotted Goby
Order: Gobiiformes
Habitat: Freshwater/Brackish
Scientific name: Ophiocara porocephala
Name: Flying Arowana
Order: Osteoglossiformes
Habitat: Freshwater swamps and slow rivers (Africa)
Scientific name: Pantodon buchholzi
Name: Flying Fish
Order: Beloniformes
Habitat: Pelagic marine (tropical and subtropical)
Scientific name: Exocoetidae
Name: Flying Gurnard
Order: Scorpaeniformes
Habitat: Coastal marine (Indo-Pacific)
Scientific name: Dactyloptena orientalis
Name: Flying Halfbeak
Order: Beloniformes
Habitat: Marine – Pelagic
Scientific name: Euleptorhamphus viridis
Name: Flying Searobin
Order: Scorpaeniformes
Habitat: Coastal marine (Atlantic Ocean)
Scientific name: Dactylopterus volitans
Name: Flyingfish
Order: Beloniformes
Habitat: Marine – Pelagic
Scientific name: Exocoetus volitans
Name: Foamperch
Order: Perciformes
Habitat: Marine
Scientific name: Glaucosoma hebraicum
Name: Fogfin Frogfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Antennarius coccineus
Name: Foliosum Frogfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Antennarius foliaceus
Name: Foord's Pipefish
Order: Syngnathiformes
Habitat: Coral reefs
Scientific name: Corythoichthys foord
Name: Football Fish
Order: Lophiiformes
Habitat: Deep sea (bathypelagic)
Scientific name: Himantolophus sagamius
Name: Footballfish
Order: Lophiiformes
Habitat: Marine – Deep Water
Scientific name: Himantolophus groenlandicus
Name: Forcepsfish
Order: Perciformes
Habitat: Coral reefs
Scientific name: Forcipiger longirostris
Name: Forest Carp
Order: Cypriniformes
Habitat: Freshwater rivers (Asia)
Scientific name: Onychostoma alticrista
Name: Forest Halfbeak
Order: Beloniformes
Habitat: Freshwater
Scientific name: Nomorhamphus liemi
Name: Forest Perch
Order: Perciformes
Habitat: Freshwater rivers (South America)
Scientific name: Crenicichla sveni
Name: Forest Snake Eel
Order: Anguilliformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Ophichthus punctifer
Name: Forest Snakehead
Order: Perciformes
Habitat: Freshwater rivers and lakes (East Asia)
Scientific name: Channa argus
Name: Fork-barred Flathead
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Rogadius serrulatus
Name: Fork-laced Catfish
Order: Siluriformes
Habitat: Freshwater rivers (South America)
Scientific name: Pimelodus maculatus
Name: Fork-tailed Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Meiacanthus kamoharai
Name: Fork-tailed Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogon multitaeniatus
Name: Fork-tailed Ray
Order: Rajiformes
Habitat: Marine
Scientific name: Dasyatis pastinaca
Name: Fork-tailed Threadfin Bream
Order: Perciformes
Habitat: Marine
Scientific name: Nemipterus furcosus
Name: Forkbeard
Order: Gadiformes
Habitat: Deep sea (Atlantic Ocean)
Scientific name: Phycis blennoides
Name: Forked Hake
Order: Gadiformes
Habitat: Marine – Deep Water
Scientific name: Phycis phycis
Name: Forked River Loach
Order: Cypriniformes
Habitat: Freshwater streams
Scientific name: Paracobitis forkica
Name: Forktail Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Meiacanthus atrodorsalis
Name: Forktail Catfish
Order: Siluriformes
Habitat: Coastal marine and brackish (Indo-Pacific)
Scientific name: Arius thalassinus
Name: Forktail Goatfish
Order: Perciformes
Habitat: Marine
Scientific name: Upeneus vittatus
Name: Formosa Dragonet
Order: Perciformes
Habitat: Marine – Reef
Scientific name: Synchiropus formosus
Name: Formosa Sole
Order: Pleuronectiformes
Habitat: Coastal marine waters
Scientific name: Solea formosa
Name: Forsskål's Goatfish
Order: Perciformes
Habitat: Marine
Scientific name: Parupeneus forsskali
Name: Forsten's Parrotfish
Order: Perciformes
Habitat: Coral reefs
Scientific name: Scarus forsteni
Name: Forster's Hawkfish
Order: Perciformes
Habitat: Marine
Scientific name: Paracirrhites forsteri
Name: Fortified Scabbardfish
Order: Perciformes
Habitat: Marine
Scientific name: Eupleurogrammus glossodon
Name: Fortress Cardinalfish
Order: Perciformes
Habitat: Coral reefs
Scientific name: Apogon fortis
Name: Fortress Rockfish
Order: Scorpaeniformes
Habitat: Coastal marine (Pacific Ocean)
Scientific name: Sebastes notius
Name: Forty-five Spot Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Apogonichthyoides quasipentlineatus
Name: Fossa Ray
Order: Myliobatiformes
Habitat: Deep water (Atlantic Ocean)
Scientific name: Rostroraja fowleri
Name: Fossil Barb
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Systomus orphoides
Name: Fossil Catfish
Order: Siluriformes
Habitat: Freshwater swamps and ponds
Scientific name: Heteropneustes fossilis
Name: Fossil Fish
Order: Coelacanthiformes
Habitat: Deep Sea (Indian Ocean)
Scientific name: Latimeria chalumnae
Name: Fountain Darter
Order: Perciformes
Habitat: Freshwater
Scientific name: Etheostoma fonticola
Name: Four-Spine Stickleback
Order: Gasterosteiformes
Habitat: Freshwater and brackish (North America)
Scientific name: Apeltes quadracus
Name: Four-banded Jewel Cichlid
Order: Perciformes
Habitat: Freshwater
Scientific name: Hemichromis guttatus
Name: Four-banded Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Paracheilinus cyaneus
Name: Four-bar Goatfish
Order: Perciformes
Habitat: Marine – Reef
Scientific name: Parupeneus chrysopleuron
Name: Four-barred Lionfish
Order: Scorpaeniformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Pterois radiata
Name: Four-eyed Fish
Order: Cyprinodontiformes
Habitat: Freshwater and brackish (Central and South America)
Scientific name: Anableps anableps
Name: Four-eyed Sleeper
Order: Gobiiformes
Habitat: Freshwater/Brackish
Scientific name: Dormitator maculatus
Name: Four-finned Flyingfish
Order: Beloniformes
Habitat: Marine
Scientific name: Hirundichthys affinis
Name: Four-lined Goby
Order: Gobiiformes
Habitat: Marine
Scientific name: Pholidichthys leucotaenia
Name: Four-lined Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Cirrhilabrus lineatus
Name: Four-lobe Porgy
Order: Spariformes
Habitat: Coastal marine (Atlantic Ocean)
Scientific name: Calamus proridens
Name: Four-ribbon Threadfin Bream
Order: Perciformes
Habitat: Marine
Scientific name: Nemipterus randalli
Name: Four-wing Flyingfish
Order: Beloniformes
Habitat: Pelagic marine (tropical)
Scientific name: Hirundichthys affinis
Name: Foureye Butterflyfish
Order: Perciformes
Habitat: Coral reefs (Atlantic Ocean)
Scientific name: Chaetodon capistratus
Name: Fourhorn Sculpin
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Myoxocephalus quadricornis
Name: Fourline Brotula
Order: Ophidiiformes
Habitat: Marine
Scientific name: Brotulotaenia clemensi
Name: Fourline Grunt
Order: Perciformes
Habitat: Marine
Scientific name: Diagramma pictum
Name: Fourline Snake Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Brachysomophis crocodilinus
Name: Fourmanoir's Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Gymnapogon forsteri
Name: Fourspine Stickleback
Order: Gasterosteiformes
Habitat: Freshwater/Brackish – Coastal
Scientific name: Apeltes quadracus
Name: Fowler's Toadfish
Order: Batrachoidiformes
Habitat: Marine – Coastal
Scientific name: Opsanus fowleri
Name: Fox Eel
Order: Anguilliformes
Habitat: Coastal marine (Atlantic Ocean)
Scientific name: Muraena robusta
Name: Fox Puffer
Order: Tetraodontiformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Arothron stellatus
Name: Foxface
Order: Perciformes
Habitat: Marine
Scientific name: Siganus vulpinus
Name: Foxface Rabbitfish
Order: Siganiformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Siganus vulpinus
Name: Frail Cod
Order: Gadiformes
Habitat: Deep sea
Scientific name: Bregmaceros cantori
Name: Fraser's Anchovy
Order: Clupeiformes
Habitat: Coastal marine waters
Scientific name: Thrissina fraseri
Name: Fraser's Goby
Order: Perciformes
Habitat: Marine
Scientific name: Ctenogobius fraseri
Name: Fraser's Sea Catfish
Order: Siluriformes
Habitat: Marine
Scientific name: Netuma thalassina
Name: Fraser's Sea Perch
Order: Perciformes
Habitat: Marine – Deep Water
Scientific name: Polyprion americanus
Name: Freckled Blenny
Order: Blenniiformes
Habitat: Coastal marine (Pacific Ocean)
Scientific name: Hypsoblennius sordidus
Name: Freckled Frogfish
Order: Lophiiformes
Habitat: Coral reefs (Atlantic Ocean)
Scientific name: Antennarius coccineus
Name: Freckled Goatfish
Order: Perciformes
Habitat: Marine
Scientific name: Upeneus tragula
Name: Freckled Hawkfish
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Paracirrhites forsteri
Name: Freckled Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax meleagris
Name: Freckled Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Corythoichthys ocellatus
Name: Freckled Scorpionfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Scorpaena ruscifolia
Name: Freckled Snake Eel
Order: Anguilliformes
Habitat: Coastal marine waters
Scientific name: Myrichthys maculosus
Name: Freckled Toadfish
Order: Batrachoidiformes
Habitat: Coastal marine waters
Scientific name: Opsanus pardus
Name: Freckled Triggerfish
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Sufflamen verres
Name: Freckled Wrasse
Order: Perciformes
Habitat: Marine – Reef
Scientific name: Halichoeres prosopeion
Name: Frecklefin Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Hypsoblennius sordidus
Name: French Angelfish
Order: Perciformes
Habitat: Marine
Scientific name: Pomacanthus paru
Name: French Grunt
Order: Perciformes
Habitat: Marine
Scientific name: Haemulon flavolineatum
Name: French grunt
Order: Haemuliformes
Habitat: Coral reefs
Scientific name: Haemulon flavolineatum
Name: Freshwater Butterflyfish
Order: Osteoglossiformes
Habitat: Freshwater
Scientific name: Pantodon buchholzi
Name: Freshwater Drum
Order: Perciformes
Habitat: Freshwater – Rivers/Lakes
Scientific name: Aplodinotus grunniens
Name: Freshwater Eel
Order: Anguilliformes
Habitat: Freshwater/Brackish/Marine – Migratory
Scientific name: Anguilla anguilla
Name: Freshwater Flounder
Order: Pleuronectiformes
Habitat: Freshwater/Brackish
Scientific name: Platichthys flesus
Name: Freshwater Pipefish
Order: Syngnathiformes
Habitat: Freshwater (Indo-Pacific)
Scientific name: Microphis brachyurus
Name: Freshwater Sawfish
Order: Pristiformes
Habitat: Freshwater/Brackish
Scientific name: Pristis microdon
Name: Freshwater Stingray
Order: Myliobatiformes
Habitat: Freshwater rivers (South America)
Scientific name: Potamotrygon motoro
Name: Freshwater drum
Order: Perciformes
Habitat: Freshwater lakes and rivers (North America)
Scientific name: Aplodinotus grunniens
Name: Freyer's Cichlid
Order: Perciformes
Habitat: Freshwater lakes (Africa)
Scientific name: Freyella cyprina
Name: Frigate Mackerel
Order: Scombriformes
Habitat: Marine
Scientific name: Auxis thazard
Name: Frill Goby
Order: Gobiiformes
Habitat: Coral reefs
Scientific name: Bathygobius rubropunctatus
Name: Frill-gilled Clownfish
Order: Perciformes
Habitat: Marine
Scientific name: Amphiprion chrysogaster
Name: Frill-headed Catfish
Order: Siluriformes
Habitat: Freshwater rivers (Southeast Asia)
Scientific name: Hemibagrus nemurus
Name: Frilled Fangtooth
Order: Stomiiformes
Habitat: Deep sea (tropical and subtropical)
Scientific name: Anoplogaster brachycera
Name: Frilled Lizardfish
Order: Aulopiformes
Habitat: Deep sea (Atlantic Ocean)
Scientific name: Bathypterois grallator
Name: Frilled Shark
Order: Hexanchiformes
Habitat: Deep sea (Atlantic and Pacific)
Scientific name: Chlamydoselachus anguineus
Name: Frillfin Goby
Order: Gobiiformes
Habitat: Coastal marine and brackish (Atlantic Ocean)
Scientific name: Bathygobius soporator
Name: Frillfin Puffer
Order: Tetraodontiformes
Habitat: Freshwater and brackish (Indo-Pacific)
Scientific name: Chelonodon patoca
Name: Fringe Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Chirolophis decoratus
Name: Fringe-barbel Eelpout
Order: Perciformes
Habitat: Marine – Deep Water
Scientific name: Pachycara sulikowskii
Name: Fringe-barbel Flyingfish
Order: Beloniformes
Habitat: Marine
Scientific name: Cypselurus hexazona
Name: Fringe-barbel Sturgeon
Order: Acipenseriformes
Habitat: Freshwater and brackish (Caspian Sea)
Scientific name: Acipenser nudiventris
Name: Fringe-eyed Flathead
Order: Perciformes
Habitat: Marine
Scientific name: Cymbacephalus beauforti
Name: Fringe-finned Clingfish
Order: Gobiesociformes
Habitat: Coastal marine (Australia)
Scientific name: Lepadichthys frenatus
Name: Fringe-lipped Cleaner Wrasse
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Labroides pectoralis
Name: Fringe-lipped Flathead
Order: Scorpaeniformes
Habitat: Coastal marine (Indo-Pacific)
Scientific name: Rogadius serratus
Name: Fringe-lipped Mullet
Order: Mugiliformes
Habitat: Marine
Scientific name: Oedalechilus labeo
Name: Fringed Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Chirolophis snyderi
Name: Fringed Filefish
Order: Tetraodontiformes
Habitat: Coastal marine (Atlantic Ocean)
Scientific name: Monacanthus ciliatus
Name: Fringed Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Engyprosopon fimbriatum
Name: Fringed Lizardfish
Order: Aulopiformes
Habitat: Marine
Scientific name: Synodus macrops
Name: Fringed Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Halicampus macrorhynchus
Name: Fringefin Blenny
Order: Perciformes
Habitat: Marine
Scientific name: Cirripectes auritus
Name: Fringefin Lanternfish
Order: Myctophiformes
Habitat: Deep sea (Atlantic Ocean)
Scientific name: Diaphus adenomus
Name: Fringefin Leatherjacket
Order: Tetraodontiformes
Habitat: Coral reefs
Scientific name: Paraluterus prionurus
Name: Fringehead
Order: Perciformes
Habitat: Coastal (Northeast Pacific)
Scientific name: Neoclinus blanchardi
Name: Frisco Bay Sculpin
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Leptocottus armatus
Name: Frizzlefin Goby
Order: Gobiiformes
Habitat: Marine – Coastal
Scientific name: Bathygobius cotticeps
Name: Froese's Cardinalfish
Order: Perciformes
Habitat: Marine
Scientific name: Ostorhinchus froesei
Name: Froese's Loach
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Schistura froesei
Name: Frogfish
Order: Lophiiformes
Habitat: Coral reefs and rocky bottoms (tropical and subtropical)
Scientific name: Antennarius commerson
Name: Froggfish
Order: Batrachoidiformes
Habitat: Marine
Scientific name: Batrachoides dianae
Name: Frogmouth Catfish
Order: Siluriformes
Habitat: Freshwater swamps
Scientific name: Chaca chaca
Name: Frontosa Cichlid
Order: Perciformes
Habitat: Freshwater
Scientific name: Cyphotilapia frontosa
Name: Frostback
Order: Gadiformes
Habitat: Deep sea
Scientific name: Macrourus berglaxoid
Name: Frostfish
Order: Ophidiiformes
Habitat: Deep sea (temperate and subtropical)
Scientific name: Lepidopus caudatus
Name: Frosty Triggerfish
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Sufflamen fraenatum
Name: Fruit Batfish
Order: Perciformes
Habitat: Marine
Scientific name: Platax boersii
Name: Fryer's Hap
Order: Perciformes
Habitat: Freshwater
Scientific name: Copadichromis fryeri
Name: Fuchsia Dottyback
Order: Perciformes
Habitat: Marine
Scientific name: Pseudochromis fuscus
Name: Fugu
Order: Tetraodontiformes
Habitat: Marine – Coastal
Scientific name: Takifugu rubripes
Name: Fulhamia Blenny
Order: Blenniiformes
Habitat: Coral reefs
Scientific name: Labrisomus fulhamia
Name: Fuller's Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Pleuronectes quadrituberculatus
Name: Fuller's Rockcod
Order: Perciformes
Habitat: Reefs (Indo-Pacific)
Scientific name: Epinephelus fuscomaculatus
Name: Fulvous Parrotfish
Order: Perciformes
Habitat: Coral reefs (Indo-Pacific)
Scientific name: Scarus psittacus
Name: Funa
Order: Cypriniformes
Habitat: Freshwater – Lakes/Ponds
Scientific name: Carassius auratus funa
Name: Fungia Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Siokunichthys nigrolineatus
Name: Fungus Fish
Order: Lophiiformes
Habitat: Coral reefs and rocky bottoms (tropical and subtropical)
Scientific name: Antennarius striatus
Name: Funnel-web Anemonefish
Order: Perciformes
Habitat: Coral reefs (symbiotic)
Scientific name: Amphiprion funneli
Name: Furcellus Cusk-eel
Order: Ophidiiformes
Habitat: Marine
Scientific name: Brotula multioceps
Name: Furrowed Blenny
Order: Perciformes
Habitat: Marine – Coastal
Scientific name: Pictiblennius tassonei
Name: Furry Scorpionfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Rhinochimaera atlantica
Name: Fuscous Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Salarias fuscus
Name: Fuscous Dottyback
Order: Perciformes
Habitat: Coral reefs
Scientific name: Pseudochromis fuscu
Name: Fusilier
Order: Perciformes
Habitat: Marine
Scientific name: Caesio cuning
Name: Fusilier Fish
Order: Perciformes
Habitat: Marine
Scientific name: Caesio cuning
| Name | Order | Habitat | Scientific name |
|---|---|---|---|
| Faccio's Spined Loach | Cypriniformes | Freshwater | Sabanejewia larvata |
| Facenosed Argonaut | Gadiformes | Marine | Macruronus novaezelandiae |
| Fail-snout Seahorse | Syngnathiformes | Marine | Hippocampus bargibanti |
| Failfish | Perciformes | Marine – Coastal | Bathygobius fuscus |
| Fairy Basslet | Perciformes | Coral reefs (Atlantic Ocean) | Gramma loreto |
| Fairy Goby | Gobiiformes | Coral reefs (Indo-Pacific) | Discordipinna griessingeri |
| Fairy Wrasse | Perciformes | Coral reefs (Indo-Pacific) | Cirrhilabrus exquisitus |
| Falcate Batfish | Ephippiformes | Coral reefs (Indo-Pacific) | Platax pinnatus |
| Falcate Moongazer | Perciformes | Marine – Reef | Parascorpaena falcata |
| Falco's Flathead | Scorpaeniformes | Marine | Elates ransonnetii |
| False Arcuated Blenny | Blenniiformes | Coral reefs | Salarias falsus |
| False Arulius Barb | Cypriniformes | Freshwater | Dawkinsia assimilis |
| False Barracuda | Scombriformes | Pelagic marine (tropical) | Acanthocybium solandri |
| False Bumblebee Catfish | Siluriformes | Freshwater | Leiocassis siamensis |
| False Catshark | Carcharhiniformes | Deep sea (worldwide) | Pseudotriakis microdon |
| False Cleaner Woby | Perciformes | Marine | Aspidontus taeniatus |
| False Cleanerfish | Perciformes | Coral reefs (Indo-Pacific) | Aspidontus taeniatus |
| False Clown Anemonefish | Perciformes | Coral reefs (Indo-Pacific) | Amphiprion ocellaris |
| False Garfish | Beloniformes | Coastal waters (Indo-Pacific) | Hyporhamphus picarti |
| False Gurnard | Scorpaeniformes | Coastal marine (Indo-Pacific) | Pseudocardium |
| False Harlequin Catfish | Siluriformes | Freshwater | Hopliancistrus |
| False Lizardfish | Aulopiformes | Marine | Synodus lucioceps |
| False Moorish Idol | Perciformes | Coral reefs (Indo-Pacific) | Heniochus acuminatus |
| False Moray | Anguilliformes | Coral reefs (Indo-Pacific) | Kaupichthys hyoproroides |
| False Peacock Angelfish | Perciformes | Marine | Centropyge debelius |
| False Perch | Perciformes | Freshwater streams and lakes | Percichthys trucha |
| False Scat | Scorpaeniformes | Coastal marine (Indo-Pacific) | Pseudoscatenarius barbatus |
| False Scats | Perciformes | Freshwater | Selenotoca multifasciata |
| False Scorpionfish | Perciformes | Coral reefs (Indo-Pacific) | Scorpaenopsis cotticeps |
| False Spikefish | Tetraodontiformes | Marine | Triacanthodes anomalus |
| False Staffed Loach | Cypriniformes | Freshwater streams | Schistura falsea |
| False Stonefish | Scorpaeniformes | Coastal marine (Indo-Pacific) | Synanceia horrida |
| False Trevally | Carangiformes | Coastal marine (Indo-Pacific) | Lactarius lactarius |
| False Unicornfish | Acanthuriformes | Coral reefs (Indo-Pacific) | Naso minor |
| False Weever | Perciformes | Marine | Paracanthistius |
| Falsestripe Blenny | Perciformes | Marine | Cirripectes imitator |
| Fan-bellied Sea Snake | Elapiformes | Marine | Hydrophis platurus |
| Fan-lipped Blenny | Perciformes | Marine | Omobranchus punctatus |
| Fan-lipped Loach | Cypriniformes | Freshwater | Gyrinocheilus aymonieri |
| Fan-tailed Stingray | Myliobatiformes | Marine | Taeniura grabata |
| Fanbelly | Perciformes | Deep sea | Macrourus berglax |
| Fanfin | Lophiiformes | Marine – Deep Water | Caulophryne jordani |
| Fanfin Angler | Lophiiformes | Marine | Caulophryne baculosa |
| Fanfin Flounder | Pleuronectiformes | Coastal marine waters | Samaris cristatus |
| Fanfin Lanternshark | Squaliformes | Deep sea (Atlantic Ocean) | Etmopterus spinax |
| Fanfin Sculpin | Scorpaeniformes | Marine | Caracanthus maculatus |
| Fanfish | Perciformes | Deep water (Atlantic Ocean) | Pteraclis aesticola |
| Fang Blenny | Perciformes | Marine | Plagiotremus azurlineatus |
| Fanged Blenny | Blenniiformes | Coral reefs (Indo-Pacific) | Meiacanthus atrodorsalis |
| Fangjaw | Stomiiformes | Marine – Deep Water | Bathophilus fleischeri |
| Fangtooth | Stomiiformes | Deep sea (mesopelagic to bathypelagic) | Anoplogaster cornuta |
| Fangtooth Moray | Anguilliformes | Marine | Enchelycore anatina |
| Fantail Bandfish | Ophidiiformes | Coastal marine waters | Cepola macrophthalma |
| Fantail Flounder | Pleuronectiformes | Marine | Samaris cristatus |
| Fantail Goldfish | Cypriniformes | Freshwater ponds and slow-moving waters (domesticated) | Carassius auratus |
| Fantail Guppy | Cyprinodontiformes | Freshwater streams and rivers (South America) | Poecilia reticulata |
| Fantail Pipefish | Syngnathiformes | Coral reefs (Indo-Pacific) | Trachyrhamphus bicoarctatus |
| Fantail Sole | Pleuronectiformes | Deep water (Australia/New Zealand) | Peltorhamphus latus |
| Fantastic Livebearer | Cyprinodontiformes | Freshwater | Poecilia reticulata |
| Far Eastern Cod | Gadiformes | Boreal marine waters | Gadus macrocephalus |
| Fardus | Cypriniformes | Freshwater rivers | Varicorhinus fardus |
| Farm-raised Tilapia | Cichliformes | Freshwater – Farmed | Oreochromis niloticus |
| Farmers Fish | Perciformes | Coral reefs (Pacific Ocean) | Labracodon encaustus |
| Fat Cod | Gadiformes | Deep water (Atlantic Ocean) | Morula morula |
| Fat Greenling | Scorpaeniformes | Coastal (North Pacific) | Hexagrammos stelleri |
| Fat Sleeper | Perciformes | Freshwater and brackish (North America) | Eleotris amblyopsis |
| Fat Sleeper Goby | Gobiiformes | Freshwater | Dormitator maculatus |
| Fathead Minnow | Cypriniformes | Freshwater streams and lakes (North America) | Pimephales promelas |
| Fathead Sculpin | Perciformes | Freshwater streams | Cottus asper |
| Faughni Anchovy | Clupeiformes | Marine/Brackish | Setipinna faughni |
| Faughri | Clupeiformes | Coastal marine (Indo-Pacific) | Thrissocles setirostris |
| Feather Blenny | Blenniiformes | Coral reefs (Indo-Pacific) | Plagiotremus azimus |
| Featherback | Osteoglossiformes | Freshwater rivers and lakes (Asia) | Chitala ornata |
| Featherback Knifefish | Osteoglossiformes | Freshwater rivers (Southeast Asia) | Chitala blanci |
| Featherface Sculpin | Scorpaeniformes | Coastal marine (Pacific Ocean) | Artedius notius |
| Featherfin Sculpin | Scorpaeniformes | Coastal marine (North America) | Oligocottus perditus |
| Featherfin Synodontis | Siluriformes | Freshwater (Africa) | Synodontis eupterus |
| Featherstar Pipefish | Syngnathiformes | Coral reefs (Indo-Pacific) | Micrognathus brevirostris |
| Feltfin Sculpin | Scorpaeniformes | Marine | Hemitripterus bolini |
| Feltfish | Aulopiformes | Deep sea | Scopelarchus analis |
| Fence Eel | Anguilliformes | Marine – Reef | Muraena fence |
| Fencer Eel | Anguilliformes | Marine | Nettastoma melanurum |
| Fencing Blenny | Blenniiformes | Coral reefs (Indo-Pacific) | Entomacrodus stellifer |
| Fender Blenny | Blenniiformes | Marine – Coastal | Entomacrodus stellifer |
| Fenderfish | Aulopiformes | Deep sea (Atlantic Ocean) | Talismania bifurcata |
| Fenestra Ray | Myliobatiformes | Marine | Raja clavata |
| Fenner's Moray | Anguilliformes | Marine | Gymnothorax fenneri |
| Fernandez Brotula | Ophidiiformes | Deep sea | Brotula fernandeziana |
| Fernandez's Eelpout | Perciformes | Marine | Lycodes fernandezianus |
| Ferocious Eelpout | Perciformes | Marine | Lycodes ferox |
| Ferocious Piranha | Characiformes | Freshwater – Rivers | Serrasalmus rhombeus |
| Ferocious Snakehead | Perciformes | Freshwater | Channa ferox |
| Ferox Trout | Salmoniformes | Freshwater | Salmo trutta ferox |
| Ferruginous Hogfish | Perciformes | Marine | Bodianus sebae |
| Ferruginous Shark | Carcharhiniformes | Marine | Atelomycterus marmoratus |
| Feverfish | Perciformes | Marine | Pristilepis oligolepis |
| Few-Spined Scorpionfish | Scorpaeniformes | Marine | Setarches guentheri |
| Fibrous Blenny | Perciformes | Marine | Cirripectes filamentosus |
| Fickle Barbel | Cypriniformes | Freshwater rivers | Luciobarbus capito |
| Fickle Flounder | Pleuronectiformes | Marine | Pseudorhombus dupliciocellatus |
| Fickle Goby | Gobiiformes | Marine | Discordipinna griessingeri |
| Fiddler Ray | Myliobatiformes | Coastal marine (Australia) | Trygonorrhina fasciata |
| Fierasfer | Ophidiiformes | Commensal with invertebrates | Carapus bermudensis |
| Fierce Dragonet | Perciformes | Deep sea | Centrodraco oregonus |
| Fierce Snakehead | Perciformes | Freshwater – Rivers/Lakes | Channa argus |
| Fiery Sea Bass | Perciformes | Marine | Centropristis striata |
| Fifteen-spined Stickleback | Gasterosteiformes | Marine coastal | Spinachia spinachia |
| Fifty-Three Spot Cardinalfish | Perciformes | Marine | Apogonichthys ocellatus |
| Fightfin Blenny | Perciformes | Marine | Ecsenius yaeyamaensis |
| Figi Wrasse | Perciformes | Coral reefs | Symphorus figiensis |
| Figure-eight Puffer | Tetraodontiformes | Freshwater | Tetraodon biocellatus |
| Figured Toadfish | Batrachoidiformes | Marine | Sanopus astrifer |
| Fiji Blue Devil | Perciformes | Coral reefs (Fiji) | Chrysiptera cyanea |
| Fiji Damselfish | Perciformes | Marine | Amblyglyphidodon orbicularis |
| Fijian Blue Devil | Perciformes | Marine | Chrysiptera cymatilis |
| Fijian Blue Devil Damselfish | Perciformes | Marine | Chrysiptera hemicyanea |
| Filament Barb | Cypriniformes | Freshwater | Puntius filamentosus |
| Filament Blenny | Perciformes | Marine – Coastal | Omobranchus elongatus |
| Filament Ghost Pipefish | Syngnathiformes | Marine | Solenostomus leptosoma |
| Filament Snapper | Perciformes | Marine | Symphorus nematophorus |
| Filament Swordtail | Cyprinodontiformes | Freshwater streams | Xiphophorus filamentosus |
| Filament-finned Parrotfish | Perciformes | Marine | Scarus altipinnis |
| Filament-finned Rockfish | Scorpaeniformes | Marine | Sebastes ciliatus |
| Filamented Flounder | Pleuronectiformes | Marine | Pleuronectes microcephalus |
| Filamented Triggerfish | Tetraodontiformes | Marine – Reef | Balistoides filamentosus |
| Filamentous Blenny | Perciformes | Marine | Plagiotremus spurrelli |
| Filamentous Flounder | Pleuronectiformes | Deep water (Pacific Ocean) | Pleuronichthys coenosus |
| Filamentous Frogfish | Lophiiformes | Marine | Antennarius striatus |
| Filefish | Tetraodontiformes | Coral reefs and rocky bottoms (tropical and subtropical) | Oxymonacanthus longirostris |
| Fimbriated Moray | Anguilliformes | Coral reefs (Indo-Pacific) | Gymnothorax fimbriatus |
| Fin Spine Loach | Cypriniformes | Freshwater | Nemacheilus corica |
| Fin-back Scabbardfish | Perciformes | Marine | Benthodesmus elongatus |
| Fincomb Blenny | Perciformes | Marine | Cirripectes castaneus |
| Fine-barred Grunter | Perciformes | Freshwater | Mesopristes argenteus |
| Fine-faced Anchovy | Engrauliformes | Marine | Coilia dussumieri |
| Fine-faced Moray | Anguilliformes | Marine | Gymnothorax microstomus |
| Fine-lined Boxfish | Tetraodontiformes | Marine | Ostracion rhinorhynchos |
| Fine-scale Dragonfish | Stomiiformes | Marine – Deep Water | Malacosteus niger |
| Fine-scaled Dragonet | Perciformes | Marine | Callionymus doryssus |
| Fine-scaled Flounder | Pleuronectiformes | Marine | Bothus mancus |
| Fine-speckled Moray | Anguilliformes | Marine | Gymnothorax isinglass |
| Fine-spotted Anglerfish | Lophiiformes | Marine | Lophius setigerus |
| Fine-spotted Moray | Anguilliformes | Marine | Gymnothorax isingteena |
| Fine-toothed Cardinalfish | Perciformes | Marine | Apogon hyalosoma |
| Fine-toothed Shark | Carcharhiniformes | Coastal marine (Atlantic Ocean) | Carcharhinus isodon |
| Finescale Codling | Gadiformes | Deep water (Australia/New Zealand) | Macruronus novaezelandiae |
| Finescale Menhaden | Clupeiformes | Coastal marine (Atlantic Ocean) | Brevoortia patronus |
| Finescale Triggerfish | Tetraodontiformes | Coral reefs (Pacific Ocean) | Balistes polylepis |
| Finetooth Flounder | Pleuronectiformes | Coastal marine waters | Perissias taeniopterus |
| Finfish | Various | Various | Various |
| Finger Fish | Perciformes | Brackish/Marine (Indo-Pacific) | Monodactylus argenteus |
| Fingered Dragonet | Perciformes | Marine | Dactylopus dactylopus |
| Fingerfin | Beryciformes | Marine | Macrurocyttus acanthopodus |
| Fingerfish | Perciformes | Coastal marine and brackish (Indo-Pacific) | Monodactylus argenteus |
| Fingerling | Various | Various (freshwater/marine) | Various (young fish) |
| Fingerprint Blenny | Perciformes | Freshwater | Omobranchus ferox |
| Finished Rockfish | Scorpaeniformes | Marine | Sebastes melanops |
| Finke River Goby | Gobiiformes | Freshwater | Chlamydogobius eremius |
| Finned Lizardfish | Aulopiformes | Marine | Synodus binotatus |
| Finned Loach | Cypriniformes | Freshwater | Acanthopsoides robertsi |
| Finnish Scad | Carangiformes | Coastal (North Atlantic) | Trachurus trachurus |
| Finspot Wrasse | Perciformes | Marine – Reef | Halichoeres melanurus |
| Finstriped Seabream | Spariformes | Marine | Boops lineatus |
| Fintail Carpetshark | Orectolobiformes | Coastal marine (Australia) | Brachaelurus waddi |
| Fir-cone Fish | Beryciformes | Marine – Deep Water | Monocentris japonica |
| Fire Barb | Cypriniformes | Freshwater streams | Puntius conchonius |
| Fire Dart | Perciformes | Marine | Ptereleotris evides |
| Fire Dartfish | Perciformes | Marine | Nemateleotris magnifica |
| Fire Eel | Synbranchiformes | Freshwater rivers (Southeast Asia) | Mastacembelus erythrotaenia |
| Fire Goby | Perciformes | Marine | Nemateleotris helfrichi |
| Fire Red Dwarf Gourami | Anabantiformes | Freshwater | Trichogaster lalius |
| Fire Shrimpgoby | Gobiiformes | Marine – Reef | Amblyeleotris guttata |
| Firefish | Scorpaeniformes | Coral reefs (Indo-Pacific) | Pterois volitans |
| Firemouth Cichlid | Perciformes | Freshwater | Thorichthys meeki |
| Firesnout Goby | Perciformes | Marine | Lythrypnus dalli |
| Firetail Goby | Gobiiformes | Marine | Stonogobiops nematodes |
| Firetail Goodeid | Cyprinodontiformes | Freshwater | Xenotoca variata |
| Firm Javelin | Perciformes | Marine | Pomadasys argyreus |
| Firmament Jawfish | Perciformes | Marine | Opistognathus castelnaui |
| First Sergeant | Perciformes | Marine | Abudefduf sexfasciatus |
| First Sergeant Major | Perciformes | Marine | Abudefduf vaigiensis |
| Fischer's Anglerfish | Lophiiformes | Marine | Lophius piscatorius |
| Fish Doctor | Siluriformes | Freshwater rivers and lakes (Africa) | Schilbe mystus |
| Fish Eagle Ray | Myliobatiformes | Marine | Aetomylaeus caeruleofasciatus |
| Fish Hook Sole | Pleuronectiformes | Coastal marine waters | Pleuronectes microcephalus |
| Fish-Eating Batfish | Lophiiformes | Marine | Ogcocephalus vespertilio |
| Fishes of the Deep | Stomiiformes | Deep sea | Stomiidae |
| Five Barred Parrotfish | Perciformes | Marine | Scarus tricolor |
| Five-Spined Stickleback | Gasterosteiformes | Freshwater | Culaea inconstans |
| Five-banded Barbel | Cypriniformes | Freshwater | Puntius tetrazona |
| Five-barred Goatfish | Perciformes | Marine | Parupeneus trifasciatus |
| Five-finger Rockcod | Perciformes | Coral reefs | Cephalopholis boenak |
| Five-finger Threadfin Bream | Perciformes | Marine | Nemipterus quinquelineatus |
| Five-lined Blenny | Perciformes | Marine | Ecsenius bathi |
| Five-lined Cardinalfish | Perciformes | Marine | Apogon angustatus |
| Five-lined Coris | Perciformes | Marine | Coris gaimard |
| Five-lined Rockfish | Scorpaeniformes | Marine | Sebastes nigrocinctus |
| Five-lined Spinefoot | Perciformes | Marine | Siganus luridus |
| Five-spot Flounder | Pleuronectiformes | Marine | Paralichthys olivaceus |
| Five-spot Wrasse | Perciformes | Marine | Paracheilinus filamentosus |
| Five-spotted Blenny | Perciformes | Marine | Enneapterygius leucopogon |
| Five-spotted Flounder | Pleuronectiformes | Marine | Bothus pantherinus |
| Fiveband Swordtail | Cyprinodontiformes | Freshwater | Xiphophorus evelynae |
| Fivefinger Wrasse | Perciformes | Marine | Decodon pacificus |
| Fivegill Shark | Hexanchiformes | Marine | Hexanchus griseus |
| Fivelined Cardinalfish | Perciformes | Marine | Cheilodipterus quinquelineatus |
| Fivespot Barb | Cypriniformes | Freshwater | Puntius eugrammus |
| Fivespot Wrasse | Perciformes | Coral reefs (Indo-Pacific) | Anampses caeruleopunctatus |
| Fixed-jaw Sole | Pleuronectiformes | Marine | Dexillus macrolepis |
| Fjord Cod | Gadiformes | Marine | Boreogadus saida |
| Flag Blenny | Blenniiformes | Coral reefs | Emblemarina hyposticta |
| Flag Cichlid | Perciformes | Freshwater rivers and lakes (South America) | Mesonauta festivus |
| Flag Wrasse | Perciformes | Marine – Reef | Goniistius zonatus |
| Flagfin Angelfish | Perciformes | Coral reefs (Indo-Pacific) | Apolemichthys trimaculatus |
| Flagfin Mojarra | Perciformes | Coastal marine and brackish (Atlantic Ocean) | Eucinostomus melanopterus |
| Flagfin Squirrelfish | Beryciformes | Coral reefs (Indo-Pacific) | Sargocentron rubrum |
| Flagtail Catfish | Siluriformes | Freshwater rivers (South America) | Phractocephalus hemioliopterus |
| Flagtail Catshark | Carcharhiniformes | Deep Sea (North Pacific) | Galeus flagellifer |
| Flagtail Goby | Gobiiformes | Marine | Priolepis semidoliata |
| Flagtail Perch | Perciformes | Coastal marine and brackish (Indo-Pacific) | Kuhlia mugil |
| Flakey Nipplefish | Perciformes | Marine – Deep Water | Bregmaceros batamensis |
| Flame Angelfish | Perciformes | Coral reefs (Pacific Ocean) | Centropyge loriculus |
| Flame Anthias | Perciformes | Coral reefs (Indo-Pacific) | Nemanthias carberryi |
| Flame Cardinalfish | Perciformes | Coral reefs (Indo-Pacific) | Apogon flammeus |
| Flame Hawkfish | Perciformes | Coral reefs (Indo-Pacific) | Neocirrhites armatus |
| Flamed Boxfish | Tetraodontiformes | Marine | Ostracion flammulatum |
| Flamefish | Perciformes | Marine | Apogon maculatus |
| Flametail Blenny | Perciformes | Marine | Meiacanthus kamoharai |
| Flamingo Tilefish | Perciformes | Marine | Malacanthus plumieri |
| Flannelmouth Sculpin | Scorpaeniformes | Marine coastal | Triglops macellus |
| Flapjack Devilfish | Myliobatiformes | Marine – Coastal | Gymnura bimaculata |
| Flapnose Houndshark | Carcharhiniformes | Coastal marine (Indo-Pacific) | Scoliodon laticaudus |
| Flasher Basslet | Perciformes | Coral reefs (Atlantic Ocean) | Gramma melacara |
| Flasher Wrasse | Perciformes | Coral reefs (Indo-Pacific) | Paracheilinus filamentosus |
| Flashlight Fish | Beryciformes | Coral reefs (Indo-Pacific) | Anomalops katoptron |
| Flat Lizardfish | Aulopiformes | Coastal (Indo-Pacific) | Synodus similis |
| Flat Needlefish | Beloniformes | Pelagic marine (tropical and subtropical) | Ablennes hians |
| Flat Wrasse | Perciformes | Marine – Coastal | Symphodus rostratus |
| Flat-faced Frogfish | Lophiiformes | Marine | Antennarius commerson |
| Flat-faced Mullet | Mugiliformes | Marine | Liza alata |
| Flat-headed Catfish | Siluriformes | Freshwater rivers | Pylodictis olivaris |
| Flatback Goby | Perciformes | Freshwater | Glossogobius giuris |
| Flatfish | Pleuronectiformes | Coastal marine (worldwide) | Various |
| Flathead | Scorpaeniformes | Coastal marine (Indo-Pacific) | Platycephalus fuscus |
| Flathead Catfish | Siluriformes | Freshwater rivers and lakes (North America) | Pylodictis olivaris |
| Flathead Grey Mullet | Mugiliformes | Coastal marine and brackish (worldwide) | Mugil cephalus |
| Flathead Gudgeon | Gobiiformes | Freshwater – Rivers/Lakes | Philypnodon grandiceps |
| Flathead Mullet | Mugiliformes | Coastal/Estuarine (Worldwide) | Mugil cephalus |
| Flathead Sole | Pleuronectiformes | Deep water (Pacific Ocean) | Hippoglossoides elassodon |
| Flatland Minnow | Cypriniformes | Freshwater streams (North America) | Pimephales tenellus |
| Flatnose Cod | Gadiformes | Deep sea | Austrancodraco megalepis |
| Flatnose Codling | Gadiformes | Marine | Macrourus berglax |
| Flatnose Shark | Hexanchiformes | Marine | Hexanchus griseus |
| Flattail Croaker | Perciformes | Marine | Umbrina roncador |
| Flatworm | Platyhelminthes | Marine | Pseudobiceros bedfordi |
| Flatworm Blenny | Blenniiformes | Marine | Plagiotremus tapeinosoma |
| Flavius Wrasse | Perciformes | Marine | Halichoeres flaviceps |
| Fleetfin Sculpin | Scorpaeniformes | Marine coastal | Artediellus scaber |
| Fleshy-lipped Mullet | Mugiliformes | Marine | Oedalechilus labeo |
| Flier | Perciformes | Freshwater lakes and swamps (North America) | Centrarchus macropterus |
| Flier Sunfish | Perciformes | Freshwater – Ponds/Lakes | Centrarchus macropterus |
| Floating Eel | Anguilliformes | Freshwater/Brackish/Marine – Migratory | Anguilla rostrata |
| Floating Frogfish | Lophiiformes | Marine | Antennarius analis |
| Floral Snakelet | Perciformes | Marine | Leptoclinus maculatus |
| Floral Wrasse | Perciformes | Marine – Reef | Halichoeres chloropterus |
| Flores Cardinalfish | Perciformes | Coral reefs | Apogon flores |
| Flores Grouper | Perciformes | Marine | Epinephelus coioides |
| Florida Barred Serranellus | Perciformes | Marine | Serranellus subligarius |
| Florida Conger Eel | Anguilliformes | Marine | Conger oceanicus |
| Florida Gar | Lepisosteiformes | Freshwater rivers and lakes (North America) | Lepisosteus platyrhincus |
| Florida Grunt | Perciformes | Coastal (Western Atlantic) | Haemulon plumierii |
| Florida Halibut | Pleuronectiformes | Marine | Paralichthys lethostigma |
| Florida Hogfish | Perciformes | Nearshore marine | Lachnolaimus maximus |
| Florida Pompano | Perciformes | Coastal marine (Atlantic Ocean) | Trachinotus carolinus |
| Flounder | Pleuronectiformes | Coastal marine (temperate) | Platichthys flesus |
| Flower Cod | Perciformes | Deep sea | Symphysanodon berryi |
| Flower Goby | Perciformes | Marine | Amblyeleotris periophthalma |
| Flower Loach | Cypriniformes | Freshwater | Botia kubotai |
| Flower Skate | Rajiformes | Marine | Leucoraja fullonica |
| Flower Snapper | Perciformes | Marine | Pristipomoides zonatus |
| Flowerhorn Cichlid | Perciformes | Freshwater (domesticated) | Cichlasoma spp. (hybrid) |
| Flowerpot Coral Goby | Gobiiformes | Marine – Reef | Gobiodon histrio |
| Flowerpot Coral Gourami | Anabantiformes | Freshwater streams | Trichopsis schalleri |
| Flowery Cod | Perciformes | Marine | Epinephelus fuscoguttatus |
| Fluffy Sculpin | Scorpaeniformes | Marine | Oligocottus snyderi |
| Fluorescent Cardinalfish | Perciformes | Coral reefs | Apogon fluorescens |
| Fluta Goby | Gobiiformes | Freshwater and brackish (Asia) | Fluta alba |
| Fluted Coral Goby | Perciformes | Marine | Gobiodon rivulatus |
| Fly River Garfish | Beloniformes | Freshwater – Rivers | Arrhamphus sclerolepis |
| Fly-spotted Goby | Gobiiformes | Freshwater/Brackish | Ophiocara porocephala |
| Flying Arowana | Osteoglossiformes | Freshwater swamps and slow rivers (Africa) | Pantodon buchholzi |
| Flying Fish | Beloniformes | Pelagic marine (tropical and subtropical) | Exocoetidae |
| Flying Gurnard | Scorpaeniformes | Coastal marine (Indo-Pacific) | Dactyloptena orientalis |
| Flying Halfbeak | Beloniformes | Marine – Pelagic | Euleptorhamphus viridis |
| Flying Searobin | Scorpaeniformes | Coastal marine (Atlantic Ocean) | Dactylopterus volitans |
| Flyingfish | Beloniformes | Marine – Pelagic | Exocoetus volitans |
| Foamperch | Perciformes | Marine | Glaucosoma hebraicum |
| Fogfin Frogfish | Lophiiformes | Marine | Antennarius coccineus |
| Foliosum Frogfish | Lophiiformes | Marine | Antennarius foliaceus |
| Foord's Pipefish | Syngnathiformes | Coral reefs | Corythoichthys foord |
| Football Fish | Lophiiformes | Deep sea (bathypelagic) | Himantolophus sagamius |
| Footballfish | Lophiiformes | Marine – Deep Water | Himantolophus groenlandicus |
| Forcepsfish | Perciformes | Coral reefs | Forcipiger longirostris |
| Forest Carp | Cypriniformes | Freshwater rivers (Asia) | Onychostoma alticrista |
| Forest Halfbeak | Beloniformes | Freshwater | Nomorhamphus liemi |
| Forest Perch | Perciformes | Freshwater rivers (South America) | Crenicichla sveni |
| Forest Snake Eel | Anguilliformes | Coral reefs (Indo-Pacific) | Ophichthus punctifer |
| Forest Snakehead | Perciformes | Freshwater rivers and lakes (East Asia) | Channa argus |
| Fork-barred Flathead | Scorpaeniformes | Marine | Rogadius serrulatus |
| Fork-laced Catfish | Siluriformes | Freshwater rivers (South America) | Pimelodus maculatus |
| Fork-tailed Blenny | Perciformes | Marine | Meiacanthus kamoharai |
| Fork-tailed Cardinalfish | Perciformes | Marine | Apogon multitaeniatus |
| Fork-tailed Ray | Rajiformes | Marine | Dasyatis pastinaca |
| Fork-tailed Threadfin Bream | Perciformes | Marine | Nemipterus furcosus |
| Forkbeard | Gadiformes | Deep sea (Atlantic Ocean) | Phycis blennoides |
| Forked Hake | Gadiformes | Marine – Deep Water | Phycis phycis |
| Forked River Loach | Cypriniformes | Freshwater streams | Paracobitis forkica |
| Forktail Blenny | Perciformes | Marine | Meiacanthus atrodorsalis |
| Forktail Catfish | Siluriformes | Coastal marine and brackish (Indo-Pacific) | Arius thalassinus |
| Forktail Goatfish | Perciformes | Marine | Upeneus vittatus |
| Formosa Dragonet | Perciformes | Marine – Reef | Synchiropus formosus |
| Formosa Sole | Pleuronectiformes | Coastal marine waters | Solea formosa |
| Forsskål's Goatfish | Perciformes | Marine | Parupeneus forsskali |
| Forsten's Parrotfish | Perciformes | Coral reefs | Scarus forsteni |
| Forster's Hawkfish | Perciformes | Marine | Paracirrhites forsteri |
| Fortified Scabbardfish | Perciformes | Marine | Eupleurogrammus glossodon |
| Fortress Cardinalfish | Perciformes | Coral reefs | Apogon fortis |
| Fortress Rockfish | Scorpaeniformes | Coastal marine (Pacific Ocean) | Sebastes notius |
| Forty-five Spot Cardinalfish | Perciformes | Marine | Apogonichthyoides quasipentlineatus |
| Fossa Ray | Myliobatiformes | Deep water (Atlantic Ocean) | Rostroraja fowleri |
| Fossil Barb | Cypriniformes | Freshwater | Systomus orphoides |
| Fossil Catfish | Siluriformes | Freshwater swamps and ponds | Heteropneustes fossilis |
| Fossil Fish | Coelacanthiformes | Deep Sea (Indian Ocean) | Latimeria chalumnae |
| Fountain Darter | Perciformes | Freshwater | Etheostoma fonticola |
| Four-Spine Stickleback | Gasterosteiformes | Freshwater and brackish (North America) | Apeltes quadracus |
| Four-banded Jewel Cichlid | Perciformes | Freshwater | Hemichromis guttatus |
| Four-banded Wrasse | Perciformes | Marine | Paracheilinus cyaneus |
| Four-bar Goatfish | Perciformes | Marine – Reef | Parupeneus chrysopleuron |
| Four-barred Lionfish | Scorpaeniformes | Coral reefs (Indo-Pacific) | Pterois radiata |
| Four-eyed Fish | Cyprinodontiformes | Freshwater and brackish (Central and South America) | Anableps anableps |
| Four-eyed Sleeper | Gobiiformes | Freshwater/Brackish | Dormitator maculatus |
| Four-finned Flyingfish | Beloniformes | Marine | Hirundichthys affinis |
| Four-lined Goby | Gobiiformes | Marine | Pholidichthys leucotaenia |
| Four-lined Wrasse | Perciformes | Marine | Cirrhilabrus lineatus |
| Four-lobe Porgy | Spariformes | Coastal marine (Atlantic Ocean) | Calamus proridens |
| Four-ribbon Threadfin Bream | Perciformes | Marine | Nemipterus randalli |
| Four-wing Flyingfish | Beloniformes | Pelagic marine (tropical) | Hirundichthys affinis |
| Foureye Butterflyfish | Perciformes | Coral reefs (Atlantic Ocean) | Chaetodon capistratus |
| Fourhorn Sculpin | Scorpaeniformes | Marine | Myoxocephalus quadricornis |
| Fourline Brotula | Ophidiiformes | Marine | Brotulotaenia clemensi |
| Fourline Grunt | Perciformes | Marine | Diagramma pictum |
| Fourline Snake Eel | Anguilliformes | Marine | Brachysomophis crocodilinus |
| Fourmanoir's Cardinalfish | Perciformes | Marine | Gymnapogon forsteri |
| Fourspine Stickleback | Gasterosteiformes | Freshwater/Brackish – Coastal | Apeltes quadracus |
| Fowler's Toadfish | Batrachoidiformes | Marine – Coastal | Opsanus fowleri |
| Fox Eel | Anguilliformes | Coastal marine (Atlantic Ocean) | Muraena robusta |
| Fox Puffer | Tetraodontiformes | Coral reefs (Indo-Pacific) | Arothron stellatus |
| Foxface | Perciformes | Marine | Siganus vulpinus |
| Foxface Rabbitfish | Siganiformes | Coral reefs (Indo-Pacific) | Siganus vulpinus |
| Frail Cod | Gadiformes | Deep sea | Bregmaceros cantori |
| Fraser's Anchovy | Clupeiformes | Coastal marine waters | Thrissina fraseri |
| Fraser's Goby | Perciformes | Marine | Ctenogobius fraseri |
| Fraser's Sea Catfish | Siluriformes | Marine | Netuma thalassina |
| Fraser's Sea Perch | Perciformes | Marine – Deep Water | Polyprion americanus |
| Freckled Blenny | Blenniiformes | Coastal marine (Pacific Ocean) | Hypsoblennius sordidus |
| Freckled Frogfish | Lophiiformes | Coral reefs (Atlantic Ocean) | Antennarius coccineus |
| Freckled Goatfish | Perciformes | Marine | Upeneus tragula |
| Freckled Hawkfish | Perciformes | Coral reefs (Indo-Pacific) | Paracirrhites forsteri |
| Freckled Moray | Anguilliformes | Marine | Gymnothorax meleagris |
| Freckled Pipefish | Syngnathiformes | Marine | Corythoichthys ocellatus |
| Freckled Scorpionfish | Scorpaeniformes | Marine | Scorpaena ruscifolia |
| Freckled Snake Eel | Anguilliformes | Coastal marine waters | Myrichthys maculosus |
| Freckled Toadfish | Batrachoidiformes | Coastal marine waters | Opsanus pardus |
| Freckled Triggerfish | Tetraodontiformes | Marine | Sufflamen verres |
| Freckled Wrasse | Perciformes | Marine – Reef | Halichoeres prosopeion |
| Frecklefin Blenny | Perciformes | Marine | Hypsoblennius sordidus |
| French Angelfish | Perciformes | Marine | Pomacanthus paru |
| French Grunt | Perciformes | Marine | Haemulon flavolineatum |
| French grunt | Haemuliformes | Coral reefs | Haemulon flavolineatum |
| Freshwater Butterflyfish | Osteoglossiformes | Freshwater | Pantodon buchholzi |
| Freshwater Drum | Perciformes | Freshwater – Rivers/Lakes | Aplodinotus grunniens |
| Freshwater Eel | Anguilliformes | Freshwater/Brackish/Marine – Migratory | Anguilla anguilla |
| Freshwater Flounder | Pleuronectiformes | Freshwater/Brackish | Platichthys flesus |
| Freshwater Pipefish | Syngnathiformes | Freshwater (Indo-Pacific) | Microphis brachyurus |
| Freshwater Sawfish | Pristiformes | Freshwater/Brackish | Pristis microdon |
| Freshwater Stingray | Myliobatiformes | Freshwater rivers (South America) | Potamotrygon motoro |
| Freshwater drum | Perciformes | Freshwater lakes and rivers (North America) | Aplodinotus grunniens |
| Freyer's Cichlid | Perciformes | Freshwater lakes (Africa) | Freyella cyprina |
| Frigate Mackerel | Scombriformes | Marine | Auxis thazard |
| Frill Goby | Gobiiformes | Coral reefs | Bathygobius rubropunctatus |
| Frill-gilled Clownfish | Perciformes | Marine | Amphiprion chrysogaster |
| Frill-headed Catfish | Siluriformes | Freshwater rivers (Southeast Asia) | Hemibagrus nemurus |
| Frilled Fangtooth | Stomiiformes | Deep sea (tropical and subtropical) | Anoplogaster brachycera |
| Frilled Lizardfish | Aulopiformes | Deep sea (Atlantic Ocean) | Bathypterois grallator |
| Frilled Shark | Hexanchiformes | Deep sea (Atlantic and Pacific) | Chlamydoselachus anguineus |
| Frillfin Goby | Gobiiformes | Coastal marine and brackish (Atlantic Ocean) | Bathygobius soporator |
| Frillfin Puffer | Tetraodontiformes | Freshwater and brackish (Indo-Pacific) | Chelonodon patoca |
| Fringe Blenny | Blenniiformes | Marine | Chirolophis decoratus |
| Fringe-barbel Eelpout | Perciformes | Marine – Deep Water | Pachycara sulikowskii |
| Fringe-barbel Flyingfish | Beloniformes | Marine | Cypselurus hexazona |
| Fringe-barbel Sturgeon | Acipenseriformes | Freshwater and brackish (Caspian Sea) | Acipenser nudiventris |
| Fringe-eyed Flathead | Perciformes | Marine | Cymbacephalus beauforti |
| Fringe-finned Clingfish | Gobiesociformes | Coastal marine (Australia) | Lepadichthys frenatus |
| Fringe-lipped Cleaner Wrasse | Perciformes | Coral reefs (Indo-Pacific) | Labroides pectoralis |
| Fringe-lipped Flathead | Scorpaeniformes | Coastal marine (Indo-Pacific) | Rogadius serratus |
| Fringe-lipped Mullet | Mugiliformes | Marine | Oedalechilus labeo |
| Fringed Blenny | Perciformes | Marine | Chirolophis snyderi |
| Fringed Filefish | Tetraodontiformes | Coastal marine (Atlantic Ocean) | Monacanthus ciliatus |
| Fringed Flounder | Pleuronectiformes | Marine | Engyprosopon fimbriatum |
| Fringed Lizardfish | Aulopiformes | Marine | Synodus macrops |
| Fringed Pipefish | Syngnathiformes | Marine | Halicampus macrorhynchus |
| Fringefin Blenny | Perciformes | Marine | Cirripectes auritus |
| Fringefin Lanternfish | Myctophiformes | Deep sea (Atlantic Ocean) | Diaphus adenomus |
| Fringefin Leatherjacket | Tetraodontiformes | Coral reefs | Paraluterus prionurus |
| Fringehead | Perciformes | Coastal (Northeast Pacific) | Neoclinus blanchardi |
| Frisco Bay Sculpin | Scorpaeniformes | Marine | Leptocottus armatus |
| Frizzlefin Goby | Gobiiformes | Marine – Coastal | Bathygobius cotticeps |
| Froese's Cardinalfish | Perciformes | Marine | Ostorhinchus froesei |
| Froese's Loach | Cypriniformes | Freshwater | Schistura froesei |
| Frogfish | Lophiiformes | Coral reefs and rocky bottoms (tropical and subtropical) | Antennarius commerson |
| Froggfish | Batrachoidiformes | Marine | Batrachoides dianae |
| Frogmouth Catfish | Siluriformes | Freshwater swamps | Chaca chaca |
| Frontosa Cichlid | Perciformes | Freshwater | Cyphotilapia frontosa |
| Frostback | Gadiformes | Deep sea | Macrourus berglaxoid |
| Frostfish | Ophidiiformes | Deep sea (temperate and subtropical) | Lepidopus caudatus |
| Frosty Triggerfish | Tetraodontiformes | Marine | Sufflamen fraenatum |
| Fruit Batfish | Perciformes | Marine | Platax boersii |
| Fryer's Hap | Perciformes | Freshwater | Copadichromis fryeri |
| Fuchsia Dottyback | Perciformes | Marine | Pseudochromis fuscus |
| Fugu | Tetraodontiformes | Marine – Coastal | Takifugu rubripes |
| Fulhamia Blenny | Blenniiformes | Coral reefs | Labrisomus fulhamia |
| Fuller's Flounder | Pleuronectiformes | Marine | Pleuronectes quadrituberculatus |
| Fuller's Rockcod | Perciformes | Reefs (Indo-Pacific) | Epinephelus fuscomaculatus |
| Fulvous Parrotfish | Perciformes | Coral reefs (Indo-Pacific) | Scarus psittacus |
| Funa | Cypriniformes | Freshwater – Lakes/Ponds | Carassius auratus funa |
| Fungia Pipefish | Syngnathiformes | Marine | Siokunichthys nigrolineatus |
| Fungus Fish | Lophiiformes | Coral reefs and rocky bottoms (tropical and subtropical) | Antennarius striatus |
| Funnel-web Anemonefish | Perciformes | Coral reefs (symbiotic) | Amphiprion funneli |
| Furcellus Cusk-eel | Ophidiiformes | Marine | Brotula multioceps |
| Furrowed Blenny | Perciformes | Marine – Coastal | Pictiblennius tassonei |
| Furry Scorpionfish | Scorpaeniformes | Marine | Rhinochimaera atlantica |
| Fuscous Blenny | Blenniiformes | Marine | Salarias fuscus |
| Fuscous Dottyback | Perciformes | Coral reefs | Pseudochromis fuscu |
| Fusilier | Perciformes | Marine | Caesio cuning |
| Fusilier Fish | Perciformes | Marine | Caesio cuning |