There are 688 fish that start with the letter G, from Gadella to Gyrodinium. 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: Gadella
Order: Gadiformes
Habitat: Marine Water
Scientific name: Gadella marci
Name: Gadella filifera
Order: Gadiformes
Habitat: Deep-sea
Scientific name: Gadella filifera
Name: Gadella imberbis
Order: Gadiformes
Habitat: Deep-sea
Scientific name: Gadella imberbis
Name: Gadella obscura
Order: Gadiformes
Habitat: Deep-sea
Scientific name: Gadella obscura
Name: Gadiculus
Order: Gadiformes
Habitat: North Atlantic
Scientific name: Gadiculus argenteus
Name: Gadiculus thori
Order: Gadiformes
Habitat: North Atlantic
Scientific name: Gadiculus thori
Name: Gadus
Order: Gadiformes
Habitat: Marine Water
Scientific name: Gadus morhua
Name: Gadus macrocephalus
Order: Gadiformes
Habitat: North Pacific
Scientific name: Gadus macrocephalus
Name: Gadus ogac
Order: Gadiformes
Habitat: Arctic
Scientific name: Gadus ogac
Name: Gafftopsail Catfish
Order: Siluriformes
Habitat: Marine and brackish waters of the Atlantic
Scientific name: Bagre marinus
Name: Gag
Order: Perciformes
Habitat: Marine
Scientific name: Mycteroperca microlepis
Name: Gagata
Order: Siluriformes
Habitat: Freshwater (Asia)
Scientific name: Gagata cenia
Name: Gagata gagata
Order: Siluriformes
Habitat: Freshwater (Asia)
Scientific name: Gagata gagata
Name: Gagata melanocheir
Order: Siluriformes
Habitat: Freshwater (Asia)
Scientific name: Gagata melanocheir
Name: Gagata nangra
Order: Siluriformes
Habitat: Freshwater (Asia)
Scientific name: Gagata nangra
Name: Gagata sexualis
Order: Siluriformes
Habitat: Freshwater (Asia)
Scientific name: Gagata sexualis
Name: Gagea
Order: Cypriniformes
Habitat: Freshwater (Asia)
Scientific name: Gagea sp.
Name: Gaidropsarus
Order: Gadiformes
Habitat: Marine Water
Scientific name: Gaidropsarus vulgaris
Name: Gaigeria
Order: Perciformes
Habitat: Freshwater
Scientific name: Gaigeria macracanthus
Name: Galapagos Batfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Ogcocephalus darwini
Name: Galapagos Grunt
Order: Perciformes
Habitat: Marine
Scientific name: Haemulon steindachneri
Name: Galapagos Shark
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Carcharhinus galapagensis
Name: Galaxias
Order: Osmeriformes
Habitat: Freshwater
Scientific name: Galaxias
Name: Galaxias brevipinnis
Order: Osmeriformes
Habitat: Freshwater (New Zealand)
Scientific name: Galaxias brevipinnis
Name: Galaxias maculatus
Order: Osmeriformes
Habitat: Freshwater (Southern Hemisphere)
Scientific name: Galaxias maculatus
Name: Galaxias olidus
Order: Osmeriformes
Habitat: Freshwater (Australia)
Scientific name: Galaxias olidus
Name: Galaxiella munda
Order: Osmeriformes
Habitat: Freshwater (Australia)
Scientific name: Galaxiella munda
Name: Galaxiella nigrostriata
Order: Osmeriformes
Habitat: Freshwater (Australia)
Scientific name: Galaxiella nigrostriata
Name: Galeichthys
Order: Siluriformes
Habitat: Marine Water
Scientific name: Galeichthys feliceps
Name: Galeichthys ater
Order: Siluriformes
Habitat: Marine (Africa)
Scientific name: Galeichthys ater
Name: Galeichthys peruvianus
Order: Siluriformes
Habitat: Marine (Peru)
Scientific name: Galeichthys peruvianus
Name: Galeocerdo
Order: Carcharhiniformes
Habitat: Marine tropical and temperate waters worldwide
Scientific name: Galeocerdo cuvier
Name: Galeocerdo cuvier
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Galeocerdo cuvier
Name: Galeoides
Order: Perciformes
Habitat: Marine Water
Scientific name: Galeoides decadactylus
Name: Galeorhinus
Order: Carcharhiniformes
Habitat: Marine Water
Scientific name: Galeorhinus galeus
Name: Galeorhinus galeus
Order: Carcharhiniformes
Habitat: Temperate Marine
Scientific name: Galeorhinus galeus
Name: Galeus
Order: Carcharhiniformes
Habitat: Deep-sea
Scientific name: Galeus melastomus
Name: Galeus atlanticus
Order: Carcharhiniformes
Habitat: Deep-sea
Scientific name: Galeus atlanticus
Name: Galeus eastmani
Order: Carcharhiniformes
Habitat: Deep-sea
Scientific name: Galeus eastmani
Name: Galeus murinus
Order: Carcharhiniformes
Habitat: Deep-sea
Scientific name: Galeus murinus
Name: Galjoen
Order: Perciformes
Habitat: Marine temperate South Africa
Scientific name: Dichistius capensis
Name: Gambusia
Order: Poeciliiformes
Habitat: Freshwater in North America
Scientific name: Gambusia affinis
Name: Gambusia holbrooki
Order: Cyprinodontiformes
Habitat: Freshwater (North America)
Scientific name: Gambusia holbrooki
Name: Gambusia nobilis
Order: Cyprinodontiformes
Habitat: Freshwater (North America)
Scientific name: Gambusia nobilis
Name: Ganges River Dolphin
Order: Cetacea
Habitat: Freshwater (Ganges River)
Scientific name: Platanista gangetica
Name: Ganges Shark
Order: Carcharhiniformes
Habitat: Freshwater/Brackish
Scientific name: Glyphis gangeticus
Name: Ganges Stingray
Order: Myliobatiformes
Habitat: Freshwater
Scientific name: Himantura fluviatilis
Name: Gar
Order: Lepisosteiformes
Habitat: Freshwater and brackish waters in North and Central America
Scientific name: Lepisosteus spp.
Name: Garden Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Heteroconger hassi
Name: Gardnerella
Order: Atheriniformes
Habitat: Freshwater
Scientific name: Gardnerella bancarellicola
Name: Garfishes
Order: Beloniformes
Habitat: Marine/Freshwater
Scientific name: Belonidae
Name: Gargantuan Goby
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Gobiidae
Name: Gargantuan Grouper
Order: Perciformes
Habitat: Marine (Tropical Indo-Pacific)
Scientific name: Hyporthodus darwinensis
Name: Gargantuan Moray Eel
Order: Anguilliformes
Habitat: Marine (Indo-Pacific)
Scientific name: Gymnothorax javanicus
Name: Gargantuan Perch
Order: Perciformes
Habitat: Freshwater (Africa)
Scientific name: Lates uwis
Name: Gargantuan Shark
Order: Carcharhiniformes
Habitat: Marine (Worldwide)
Scientific name: Carcharhinus
Name: Gargantuan Snakehead
Order: Perciformes
Habitat: Freshwater (Asia)
Scientific name: Channa argus
Name: Gargantuan Triggerfish
Order: Tetraodontiformes
Habitat: Marine (Tropical and Subtropical Oceans)
Scientific name: Balistidae
Name: Gargaropteron
Order: Perciformes
Habitat: Freshwater (South Asia)
Scientific name: Gargaropteron semilunare
Name: Gargoyles
Order: Scorpaeniformes
Habitat: Marine (Tropical and Subtropical Oceans)
Scientific name: Scorpaenidae
Name: Garibaldi
Order: Perciformes
Habitat: Marine temperate Pacific Ocean
Scientific name: Hypsypops rubicundus
Name: Garibaldi Damselfish
Order: Perciformes
Habitat: Marine
Scientific name: Hypsypops rubicundus
Name: Garibaldia
Order: Perciformes
Habitat: Marine
Scientific name: Hypsypops rubicundus
Name: Garmouth
Order: Perciformes
Habitat: Marine Water
Scientific name: Chirocentrus nudus
Name: Garmouth Sea Catfish
Order: Siluriformes
Habitat: Marine/Brackish (Western Atlantic)
Scientific name: Ariopsis felis
Name: Garra
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Garra rufa
Name: Garra annandalei
Order: Cypriniformes
Habitat: Freshwater (Asia)
Scientific name: Garra annandalei
Name: Garra gotyla
Order: Cypriniformes
Habitat: Freshwater (Asia)
Scientific name: Garra gotyla
Name: Garra lamta
Order: Cypriniformes
Habitat: Freshwater (Asia)
Scientific name: Garra lamta
Name: Garra mullya
Order: Cypriniformes
Habitat: Freshwater (Asia)
Scientific name: Garra mullya
Name: Garrick
Order: Perciformes
Habitat: Marine
Scientific name: Lichia amia
Name: Gasparilla
Order: Perciformes
Habitat: Freshwater/Brackish (Americas)
Scientific name: Eleotris pisonis
Name: Gasteropelecidae
Order: Characiformes
Habitat: Freshwater (South America)
Scientific name: Gasteropelecidae
Name: Gasteropelecus
Order: Characiformes
Habitat: Freshwater
Scientific name: Gasteropelecus sternicla
Name: Gasteropelecus sternicla
Order: Characiformes
Habitat: Freshwater (South America)
Scientific name: Gasteropelecus sternicla
Name: Gasteroscotias
Order: Perciformes
Habitat: Marine Water
Scientific name: Gasteroscotias quadrispinosus
Name: Gasterosteidae
Order: Gasterosteiformes
Habitat: Freshwater/Brackish/Marine (Northern Hemisphere)
Scientific name: Gasterosteidae
Name: Gasterosteus
Order: Gasterosteiformes
Habitat: Freshwater/Brackish/Marine
Scientific name: Gasterosteus aculeatus
Name: Gasterosteus aculeatus
Order: Gasterosteiformes
Habitat: Freshwater/Brackish/Marine
Scientific name: Gasterosteus aculeatus
Name: Gastrocyprinus
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Gastrocyprinus danjiangensis
Name: Gastromyzon
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Gastromyzon leuseriensis
Name: Gastropoma
Order: Perciformes
Habitat: Marine (Deep Sea)
Scientific name: Gastropoma bicorne
Name: Gastropteron
Order: Cephalaspidea
Habitat: Marine (Indo-Pacific)
Scientific name: Gastropteron rubrum
Name: Gastrotheca
Order: Anura
Habitat: Freshwater (South America)
Scientific name: Gastrotheca marsupiata
Name: Gatfishes
Order: Siluriformes
Habitat: Freshwater (Africa)
Scientific name: Auchenoglanis
Name: Gatto di Mare
Order: Chimaeriformes
Habitat: Marine (Northeastern Atlantic)
Scientific name: Chimaera monstrosa
Name: Gaussia
Order: Copepoda
Habitat: Marine (Deep Sea)
Scientific name: Gaussia princeps
Name: Gavia
Order: Gaviiformes
Habitat: Freshwater/Marine (Northern Hemisphere)
Scientific name: Gavia immer
Name: Gavial
Order: Crocodilia
Habitat: Freshwater (India)
Scientific name: Gavialis gangeticus
Name: Gawana
Order: Cypriniformes
Habitat: Freshwater (Asia)
Scientific name: Carassius auratus
Name: Gelasimus
Order: Decapoda
Habitat: Marine/Brackish (Atlantic)
Scientific name: Gelasimus pugilator
Name: Gelatinous Snailfish
Order: Scorpaeniformes
Habitat: Deepwater marine
Scientific name: Liparis fabricii
Name: Gelt
Order: Osmeriformes
Habitat: Freshwater/Marine
Scientific name: Osmerus mordax
Name: Gempylid Snake Mackerel
Order: Perciformes
Habitat: Marine
Scientific name: Gempylidae
Name: Gempylidae
Order: Perciformes
Habitat: Marine (Deep Sea)
Scientific name: Gempylidae
Name: Gempylus
Order: Perciformes
Habitat: Marine (Worldwide)
Scientific name: Gempylus serpens
Name: Gempylus serpens
Order: Scombriformes
Habitat: Marine
Scientific name: Gempylus serpens
Name: Genicanthus
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Genicanthus melanospilos
Name: Genidens
Order: Siluriformes
Habitat: Brackish/Marine (South America)
Scientific name: Genidens genidens
Name: Genidens genidens
Order: Siluriformes
Habitat: Marine/Brackish
Scientific name: Genidens genidens
Name: Genie's Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax geniei
Name: Gentle Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax clepsydra
Name: Gentle Nurse Shark
Order: Orectolobiformes
Habitat: Marine Water
Scientific name: Leptocharias smithii
Name: Gentle Shark
Order: Hexanchiformes
Habitat: Marine
Scientific name: Hexanchus griseus
Name: Genypterus
Order: Ophidiiformes
Habitat: Marine (South Africa)
Scientific name: Genypterus capensis
Name: Genypterus blacodes
Order: Ophidiiformes
Habitat: Marine
Scientific name: Genypterus blacodes
Name: Geometric Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax griseus
Name: Geophagus
Order: Cichliformes
Habitat: Freshwater in South America
Scientific name: Geophagus spp.
Name: Geophagus Brasiliensis
Order: Perciformes
Habitat: Freshwater
Scientific name: Geophagus brasiliensis
Name: Geophagus Dicrozoster
Order: Perciformes
Habitat: Freshwater
Scientific name: Geophagus dicrozoster
Name: Geophagus Proximus
Order: Perciformes
Habitat: Freshwater
Scientific name: Geophagus proximus
Name: Geophagus Winemilleri
Order: Perciformes
Habitat: Freshwater
Scientific name: Geophagus winemilleri
Name: Geophagus altifrons
Order: Perciformes
Habitat: Freshwater
Scientific name: Geophagus altifrons
Name: Geophilus
Order: Geophilidae
Habitat: Terrestrial (Worldwide)
Scientific name: Geophilus electricus
Name: Geotria
Order: Petromyzontiformes
Habitat: Freshwater/Marine (Southern Hemisphere)
Scientific name: Geotria australis
Name: Geotria australis
Order: Petromyzontiformes
Habitat: Freshwater/Marine (anadromous)
Scientific name: Geotria australis
Name: Gephyroberyx
Order: Beryciformes
Habitat: Deepwater marine
Scientific name: Gephyroberyx darwinii
Name: German Sturgeon
Order: Acipenseriformes
Habitat: Freshwater/Brackish/Marine (Europe)
Scientific name: Acipenser sturio
Name: Gerreidae
Order: Perciformes
Habitat: Marine/Brackish
Scientific name: Gerreidae
Name: Gerres
Order: Perciformes
Habitat: Marine Water
Scientific name: Gerres equulus
Name: Gerres equulus
Order: Perciformes
Habitat: Coastal Marine
Scientific name: Gerres equulus
Name: Gerres erythrourus
Order: Perciformes
Habitat: Coastal Marine
Scientific name: Gerres erythrourus
Name: Gerres filamentosus
Order: Perciformes
Habitat: Marine/Brackish
Scientific name: Gerres filamentosus
Name: Gerres longirostris
Order: Perciformes
Habitat: Coastal Marine
Scientific name: Gerres longirostris
Name: Gerrhosaurus
Order: Perciformes
Habitat: Freshwater (Africa)
Scientific name: Gerrhosaurus major
Name: Geryon
Order: Decapoda
Habitat: Marine (Atlantic)
Scientific name: Geryon quinquedens
Name: Gesneriaceae
Order: Lamiales
Habitat: Terrestrial (Tropical and Subtropical Regions)
Scientific name: Gesneriaceae
Name: Gessami
Order: Perciformes
Habitat: Marine (Deep Sea)
Scientific name: Gressami sp.
Name: Gesser
Order: Perciformes
Habitat: Coastal Marine
Scientific name: Gerres oyena
Name: Getron
Order: Perciformes
Habitat: Freshwater (Africa)
Scientific name: Getron microlepis
Name: Ghanian Tongue Sole
Order: Pleuronectiformes
Habitat: Marine (West Africa)
Scientific name: Cynoglossus senegalensis
Name: Gharial
Order: Crocodilia
Habitat: Freshwater (India)
Scientific name: Gavialis gangeticus
Name: Ghost Catfish
Order: Siluriformes
Habitat: Freshwater (Southeast Asia)
Scientific name: Kryptopterus vitreolus
Name: Ghost Catshark
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Apristurus sp.
Name: Ghost Knifefish
Order: Gymnotiformes
Habitat: Freshwater in South America
Scientific name: Apteronotus albifrons
Name: Ghost Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Solenostomidae
Name: Ghost Redhorse
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Moxostoma erythrurum
Name: Ghost Shark
Order: Chimaeriformes
Habitat: Deep marine waters worldwide
Scientific name: Chimaeridae
Name: Ghost Shiner
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Notropis buchanani
Name: Ghost Skirt Tetra
Order: Characiformes
Habitat: Freshwater (South America)
Scientific name: Gymnocorymbus ternetzi
Name: Ghost Spotted Trunkfish
Order: Tetraodontiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Tetrosomus concatenatus
Name: Ghost Tentaclefish
Order: Batrachoidiformes
Habitat: Marine (Atlantic Ocean)
Scientific name: Halobatrachus didactylus
Name: Ghostfish
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Pterois miles
Name: Ghostpipefish
Order: Syngnathiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Solenostomus paradoxus
Name: Giant Acra
Order: Perciformes
Habitat: Marine (Coastal)
Scientific name: Rachycentron canadum
Name: Giant African Threadfin
Order: Perciformes
Habitat: Marine (West Africa)
Scientific name: Polydactylus quadrifilis
Name: Giant Barb
Order: Cypriniformes
Habitat: Freshwater (Southeast Asia)
Scientific name: Catlocarpio siamensis
Name: Giant Barracuda
Order: Scombriformes
Habitat: Marine Water
Scientific name: Sphyraena barracuda
Name: Giant Barramundi
Order: Perciformes
Habitat: Freshwater/Brackish/Marine
Scientific name: Lates calcarifer
Name: Giant Bass
Order: Perciformes
Habitat: Marine (Eastern Pacific)
Scientific name: Stereolepis gigas
Name: Giant Basslet
Order: Perciformes
Habitat: Marine
Scientific name: Lipogramma anabantoides
Name: Giant Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Heterostichus rostratus
Name: Giant Blind Cave Fish
Order: Cypriniformes
Habitat: Freshwater (Africa)
Scientific name: Caecorobius
Name: Giant Bottlenose
Order: Perciformes
Habitat: Marine
Scientific name: Hyperoglyphe perciformis
Name: Giant Boxfish
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Anoplocapros lenticularis
Name: Giant Bullhead Catfish
Order: Siluriformes
Habitat: Freshwater (Australia)
Scientific name: Tandanus tandanus
Name: Giant Carpet Shark
Order: Orectolobiformes
Habitat: Marine
Scientific name: Eucrossorhinus dasypogon
Name: Giant Catfish
Order: Siluriformes
Habitat: Freshwater (Mekong Basin)
Scientific name: Pangasianodon gigas
Name: Giant Cave Fish
Order: Cypriniformes
Habitat: Freshwater (China)
Scientific name: Sinocyclocheilus anshuiensis
Name: Giant Cetoscolopes
Order: Gobiiformes
Habitat: Marine (Deep Sea)
Scientific name: Cetoscolopes magnus
Name: Giant Cichlid
Order: Perciformes
Habitat: Freshwater (Lake Tanganyika)
Scientific name: Boulengerochromis microlepis
Name: Giant Clam
Order: Veneroida
Habitat: Marine (Indo-Pacific)
Scientific name: Tridacna gigas
Name: Giant Conch
Order: Gastropoda
Habitat: Marine (Western Atlantic)
Scientific name: Strombus gigas
Name: Giant Crawfish
Order: Decapoda
Habitat: Freshwater (Australia)
Scientific name: Cherax cainii
Name: Giant Danio
Order: Cypriniformes
Habitat: Freshwater in Asia
Scientific name: Devario aequipinnatus
Name: Giant Devil Ray
Order: Myliobatiformes
Habitat: Marine (Tropical and Subtropical Oceans)
Scientific name: Mobulidae
Name: Giant Devilfish
Order: Octopoda
Habitat: Marine (North Pacific)
Scientific name: Octopus dofleini
Name: Giant Dysoxylum
Order: Sapindales
Habitat: Terrestrial (Southeast Asia)
Scientific name: Dysoxylum mollissimum
Name: Giant Earthworm
Order: Clitellata
Habitat: Terrestrial (Australia)
Scientific name: Megascolides australis
Name: Giant Eel
Order: Anguilliformes
Habitat: Freshwater/Marine (Atlantic/Europe)
Scientific name: Anguilla anguilla
Name: Giant Elephantfish
Order: Osteoglossiformes
Habitat: Freshwater (Africa)
Scientific name: Mormyridae
Name: Giant Empire Goby
Order: Gobiiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Eleotris amblyopsis
Name: Giant Freshwater Stingray
Order: Myliobatiformes
Habitat: Freshwater (Southeast Asia)
Scientific name: Himantura polylepis
Name: Giant Frogfish
Order: Lophiiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Antennarius commerson
Name: Giant Fundulus
Order: Cyprinodontiformes
Habitat: Brackish/Marine (Atlantic)
Scientific name: Fundulus grandis
Name: Giant Garfish
Order: Beloniformes
Habitat: Marine (Indo-Pacific)
Scientific name: Tylosurus crocodilus
Name: Giant Gars
Order: Lepisosteiformes
Habitat: Freshwater/Brackish (North America)
Scientific name: Atractosteus spatula
Name: Giant Gourami
Order: Anabantiformes
Habitat: Freshwater in Southeast Asia
Scientific name: Osphronemus goramy
Name: Giant Grenadier
Order: Gadiformes
Habitat: Marine (North Atlantic)
Scientific name: Macrourus berglax
Name: Giant Ground Shark
Order: Carcharhiniformes
Habitat: Marine (Worldwide)
Scientific name: Carcharhinus longimanus
Name: Giant Groundling
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Gobiidae
Name: Giant Grouper
Order: Perciformes
Habitat: Marine
Scientific name: Epinephelus lanceolatus
Name: Giant Hagfish
Order: Myxiniformes
Habitat: Deep marine waters
Scientific name: Eptatretus carlhubbsi
Name: Giant Hake
Order: Gadiformes
Habitat: Marine
Scientific name: Macruronus novaezelandiae
Name: Giant Hawkfish
Order: Perciformes
Habitat: Marine (Eastern Pacific)
Scientific name: Cirrhitus rivulatus
Name: Giant Herring
Order: Clupeiformes
Habitat: Marine/Brackish (Worldwide)
Scientific name: Elops saurus
Name: Giant Hilsa
Order: Clupeiformes
Habitat: Marine/Brackish/Freshwater (Indo-Pacific)
Scientific name: Tenualosa ilisha
Name: Giant Hinge-beaked Prawn
Order: Decapoda
Habitat: Marine (Indo-Pacific)
Scientific name: Rhynchocinetes typus
Name: Giant Huchen
Order: Salmoniformes
Habitat: Freshwater (Siberia)
Scientific name: Hucho taimen
Name: Giant Ichthyoplankter
Order: Perciformes
Habitat: Deepwater marine
Scientific name: Gigantura indica
Name: Giant Isopod
Order: Isopoda
Habitat: Marine (Deep Sea)
Scientific name: Bathynomus giganteus
Name: Giant Kelpfish
Order: Perciformes
Habitat: Marine temperate Pacific Ocean
Scientific name: Heterostichus rostratus
Name: Giant Kingfish
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Caranx ignobilis
Name: Giant Kokopu
Order: Osmeriformes
Habitat: Freshwater
Scientific name: Galaxias argenteus
Name: Giant Kucher
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Oxycirrhites typus
Name: Giant Lake Trout
Order: Salmoniformes
Habitat: Freshwater (North America)
Scientific name: Salvelinus namaycush
Name: Giant Leatherjacket
Order: Tetraodontiformes
Habitat: Marine (Worldwide)
Scientific name: Aluterus monoceros
Name: Giant Lionfish
Order: Scorpaeniformes
Habitat: Marine (Indo-Pacific)
Scientific name: Pterois volitans
Name: Giant Manta Ray
Order: Myliobatiformes
Habitat: Marine
Scientific name: Mobula birostris
Name: Giant Mekong Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Pangasianodon gigas
Name: Giant Moray
Order: Anguilliformes
Habitat: Marine tropical Indo-Pacific
Scientific name: Gymnothorax javanicus
Name: Giant Moray Eel
Order: Anguilliformes
Habitat: Marine (Indo-Pacific)
Scientific name: Gymnothorax javanicus
Name: Giant Mudskipper
Order: Perciformes
Habitat: Brackish/Marine
Scientific name: Periophthalmodon schlosseri
Name: Giant Muraena
Order: Anguilliformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Muraena robusta
Name: Giant Mussels
Order: Mytilida
Habitat: Marine (North America)
Scientific name: Mytilus californianus
Name: Giant Northern Clam
Order: Veneroida
Habitat: Marine (North America)
Scientific name: Mercenaria mercenaria
Name: Giant Oarfish
Order: Lampriformes
Habitat: Marine
Scientific name: Regalecus glesne
Name: Giant Paddlefish
Order: Acipenseriformes
Habitat: Freshwater (China)
Scientific name: Psephurus gladius
Name: Giant Parore
Order: Perciformes
Habitat: Marine (New Zealand/Australia)
Scientific name: Girella tricuspidata
Name: Giant Perch
Order: Perciformes
Habitat: Freshwater (Africa)
Scientific name: Lates niloticus
Name: Giant Petricola
Order: Veneroida
Habitat: Marine (North America)
Scientific name: Petricolaria pholadiformis
Name: Giant Pide
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Plectropomus leopardus
Name: Giant Pike
Order: Esociformes
Habitat: Freshwater (Northern Hemisphere)
Scientific name: Esox lucius
Name: Giant Piranha
Order: Characiformes
Habitat: Freshwater (South America)
Scientific name: Serrasalmus rhombeus
Name: Giant Plaice
Order: Pleuronectiformes
Habitat: Marine (North Atlantic)
Scientific name: Hippoglossoides platessoides
Name: Giant Plume Saberfish
Order: Lampriformes
Habitat: Marine (Worldwide)
Scientific name: Lophotus capellei
Name: Giant Pond Smelt
Order: Osmeriformes
Habitat: Freshwater (North America)
Scientific name: Hypomesus transpacificus
Name: Giant Prawn
Order: Decapoda
Habitat: Freshwater/Brackish (Indo-Pacific)
Scientific name: Macrobrachium rosenbergii
Name: Giant Queen Conch
Order: Gastropoda
Habitat: Marine (Western Atlantic)
Scientific name: Strombus gigas
Name: Giant Rabbitfish
Order: Perciformes
Habitat: Marine (Red Sea/Mediterranean)
Scientific name: Siganus rivulatus
Name: Giant Ray
Order: Myliobatiformes
Habitat: Marine (Worldwide)
Scientific name: Manta birostris
Name: Giant Red Sea Urchin
Order: Echinodermata
Habitat: Marine (North Pacific)
Scientific name: Strongylocentrotus franciscanus
Name: Giant Remora
Order: Carangiformes
Habitat: Marine tropical waters worldwide
Scientific name: Echeneis naucrates
Name: Giant River Mackerel
Order: Scombriformes
Habitat: Marine Water
Scientific name: Scomberomorus sinensis
Name: Giant River Prawn
Order: Decapoda
Habitat: Freshwater/Brackish (Indo-Pacific)
Scientific name: Macrobrachium rosenbergii
Name: Giant River Stingray
Order: Myliobatiformes
Habitat: Freshwater (South America)
Scientific name: Potamotrygon brachyura
Name: Giant Sablefish
Order: Scorpaeniformes
Habitat: Marine (North Pacific)
Scientific name: Anoplopoma fimbria
Name: Giant Sailfin
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Mylopharyngodon piceus
Name: Giant Salamander
Order: Caudata
Habitat: Freshwater (Asia)
Scientific name: Andrias davidianus
Name: Giant Salmon
Order: Salmoniformes
Habitat: Freshwater/Marine (North Pacific)
Scientific name: Oncorhynchus tshawytscha
Name: Giant Sawfish
Order: Pristiformes
Habitat: Marine/Brackish/Freshwater (Tropical and Subtropical)
Scientific name: Pristis pristis
Name: Giant Scallop
Order: Pectinida
Habitat: Marine (North Atlantic)
Scientific name: Placopecten magellanicus
Name: Giant Schelly
Order: Perciformes
Habitat: Freshwater (Africa)
Scientific name: Cichlidae
Name: Giant Sea Bass
Order: Perciformes
Habitat: Marine temperate North Pacific
Scientific name: Stereolepis gigas
Name: Giant Sea Fan
Order: Gorgonacea
Habitat: Marine (Western Atlantic)
Scientific name: Gorgonia ventalina
Name: Giant Sea Horse
Order: Syngnathiformes
Habitat: Marine (Eastern Pacific)
Scientific name: Hippocampus ingens
Name: Giant Sea Sponges
Order: Demospongiae
Habitat: Marine (Caribbean)
Scientific name: Xestospongia muta
Name: Giant Sea Trout
Order: Perciformes
Habitat: Marine/Brackish (Western Atlantic)
Scientific name: Cynoscion nebulosus
Name: Giant Sea Turtle
Order: Testudines
Habitat: Marine (Worldwide)
Scientific name: Dermochelys coriacea
Name: Giant Seaperch
Order: Perciformes
Habitat: Marine/Brackish/Freshwater (Indo-Pacific)
Scientific name: Lates calcarifer
Name: Giant Serranus
Order: Perciformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Serranus atricauda
Name: Giant Shark
Order: Lamniformes
Habitat: Marine (Worldwide)
Scientific name: Carcharodon carcharias
Name: Giant Sleeper
Order: Gobiiformes
Habitat: Freshwater and brackish waters in the Americas
Scientific name: Gobiomorus dormitor
Name: Giant Sleeper Goby
Order: Gobiiformes
Habitat: Freshwater/Brackish (Africa)
Scientific name: Eleotris acanthopoma
Name: Giant Smooth-hound Shark
Order: Carcharhiniformes
Habitat: Marine (Eastern Pacific)
Scientific name: Mustelus californicus
Name: Giant Snakehead
Order: Anabantiformes
Habitat: Freshwater in Southeast Asia
Scientific name: Channa micropeltes
Name: Giant Sooty Grunter
Order: Perciformes
Habitat: Freshwater (Australia)
Scientific name: Hephaestus fuliginosus
Name: Giant Spangled Emperor
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Lethrinus nebulosus
Name: Giant Spiny Lobster
Order: Decapoda
Habitat: Marine (Eastern Pacific)
Scientific name: Panulirus interruptus
Name: Giant Squid
Order: Teuthida
Habitat: Marine (Deep Sea)
Scientific name: Architeuthis dux
Name: Giant Stargazer
Order: Perciformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Uranoscopus scaber
Name: Giant Stingray
Order: Myliobatiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Urogymnus asperrimus
Name: Giant Stonefish
Order: Scorpaeniformes
Habitat: Marine (Indo-Pacific)
Scientific name: Synanceia horrida
Name: Giant Sturgeon
Order: Acipenseriformes
Habitat: Marine/Brackish/Freshwater (Europe/Asia)
Scientific name: Huso huso
Name: Giant Sucker
Order: Cypriniformes
Habitat: Freshwater (North America)
Scientific name: Maxostoma carinatum
Name: Giant Sunfish
Order: Tetraodontiformes
Habitat: Marine (Worldwide)
Scientific name: Mola mola
Name: Giant Sweetlip
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Plectorhinchus albovittatus
Name: Giant Swellshark
Order: Carcharhiniformes
Habitat: Marine (Eastern Pacific)
Scientific name: Cephaloscyllium ventriosum
Name: Giant Tailor
Order: Perciformes
Habitat: Marine (Worldwide)
Scientific name: Pomatomus saltatrix
Name: Giant Tarpon
Order: Elopiformes
Habitat: Marine/Brackish/Freshwater (Atlantic)
Scientific name: Megalops atlanticus
Name: Giant Tetra
Order: Characiformes
Habitat: Freshwater (Africa)
Scientific name: Hydrocynus goliath
Name: Giant Tiger Prawn
Order: Decapoda
Habitat: Marine/Brackish (Indo-Pacific)
Scientific name: Penaeus monodon
Name: Giant Tilapia
Order: Perciformes
Habitat: Freshwater (Africa)
Scientific name: Oreochromis niloticus
Name: Giant Trevally
Order: Carangiformes
Habitat: Indo-Pacific marine waters
Scientific name: Caranx ignobilis
Name: Giant Triplefin
Order: Perciformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Tripterygion delaisi
Name: Giant Triton
Order: Sorbeoconcha
Habitat: Marine (Indo-Pacific)
Scientific name: Charonia tritonis
Name: Giant Tube Worm
Order: Siboglinidae
Habitat: Marine (Deep Sea)
Scientific name: Riftia pachyptila
Name: Giant Tumbler
Order: Perciformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Trigla lucerna
Name: Giant Turbot
Order: Pleuronectiformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Psetta maxima
Name: Giant Velvetfish
Order: Scorpaeniformes
Habitat: Marine (Australia)
Scientific name: Gnathanacanthus goetzeei
Name: Giant Walleye
Order: Perciformes
Habitat: Freshwater (North America)
Scientific name: Sander vitreus
Name: Giant Wobbegong
Order: Orectolobiformes
Habitat: Marine (Australia)
Scientific name: Orectolobus halei
Name: Giant Wolffish
Order: Perciformes
Habitat: Marine (North Atlantic)
Scientific name: Anarhichas latifrons
Name: Giant Wrasse
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Cheilinus undulatus
Name: Gibberfish
Order: Stomiiformes
Habitat: Marine
Scientific name: Gibberichthyidae
Name: Gibberichthys
Order: Gibberichthyiformes
Habitat: Deep-sea
Scientific name: Gibberichthys pumilus
Name: Gibberichthys latifrons
Order: Gibberichthyiformes
Habitat: Deep-sea
Scientific name: Gibberichthys latifrons
Name: Gibbon
Order: Primate
Habitat: Terrestrial (Southeast Asia)
Scientific name: Hylobatidae
Name: Gibbosa
Order: Gastropoda
Habitat: Marine (Tropical)
Scientific name: Gibbosa sp.
Name: Gibbosula
Order: Gastropoda
Habitat: Marine (Indo-Pacific)
Scientific name: Gibbosula gibbosa
Name: Gibbous Dory
Order: Zeiformes
Habitat: Marine (Worldwide)
Scientific name: Zenopsis conchifer
Name: Gibbous Grunter
Order: Perciformes
Habitat: Freshwater (Australia)
Scientific name: Hephaestus carbo
Name: Gibbous Moray Eel
Order: Anguilliformes
Habitat: Marine (Indo-Pacific)
Scientific name: Gymnothorax gibbosus
Name: Gibbous Parrotfish
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Scarus gibbus
Name: Gibbous Sweepers
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Pempheridae
Name: Gibbsia
Order: Aulopiformes
Habitat: Deep-sea
Scientific name: Gibbsia muraenolepis
Name: Gibbula
Order: Callionymiformes
Habitat: Marine (Mediterranean)
Scientific name: Gibbula umbilicaris
Name: Gibbus
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Pomadasys gibbosus
Name: Gibel Carp
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Carassius gibelio
Name: Gibraltar Bream
Order: Spariformes
Habitat: Marine
Scientific name: Spondyliosoma cantharus
Name: Giesbrechtia
Order: Copepoda
Habitat: Marine (Deep Sea)
Scientific name: Giesbrechtia princeps
Name: Giffard's Catfish
Order: Siluriformes
Habitat: Freshwater (Africa)
Scientific name: Synodontis giffardi
Name: Gigantactis
Order: Lophiiformes
Habitat: Marine (deep-sea)
Scientific name: Gigantactis
Name: Gigantura indica
Order: Aulopiformes
Habitat: Marine (deep-sea)
Scientific name: Gigantura indica
Name: Gigas Sea Bass
Order: Perciformes
Habitat: Marine (Eastern Pacific)
Scientific name: Stereolepis gigas
Name: Gilbert's Cardinalfish
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Apogon gilberti
Name: Gilbert's Drum
Order: Perciformes
Habitat: Marine (Eastern Atlantic)
Scientific name: Umbrina ronchus
Name: Gilbert's Greenling
Order: Scorpaeniformes
Habitat: Marine (North Pacific)
Scientific name: Hexagrammos stelleri
Name: Gilbert's Grunt
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Pomadasys gilberti
Name: Gilbert's Pipefish
Order: Syngnathiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Corythoichthys gilberti
Name: Gilbert's Triggerfish
Order: Tetraodontiformes
Habitat: Marine (Eastern Pacific)
Scientific name: Balistes polylepis
Name: Gilchristella
Order: Clupeiformes
Habitat: Freshwater/Brackish
Scientific name: Gilchristella aestuaria
Name: Gillaroo
Order: Salmoniformes
Habitat: Freshwater (Ireland)
Scientific name: Salmo trutta
Name: Gillbacker
Order: Siluriformes
Habitat: Freshwater (South America)
Scientific name: Pseudoplatystoma fasciatum
Name: Gillblennius
Order: Blenniiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Gillblennius rubripinnis
Name: Gillichthys
Order: Gobiiformes
Habitat: Marine/Brackish (Eastern Pacific)
Scientific name: Gillichthys mirabilis
Name: Gillichthys mirabilis
Order: Gobiiformes
Habitat: Brackish/Marine
Scientific name: Gillichthys mirabilis
Name: Gillichthys seta
Order: Gobiiformes
Habitat: Brackish (North America)
Scientific name: Gillichthys seta
Name: Gills
Order: No specific taxonomic group
Habitat: Various
Scientific name: Various
Name: Gilt-Head Bream
Order: Spariformes
Habitat: Marine
Scientific name: Sparus aurata
Name: Gilthead Bream
Order: Perciformes
Habitat: Marine (Eastern Atlantic/Mediterranean)
Scientific name: Sparus aurata
Name: Gilthead Sea Bream
Order: Spariformes
Habitat: Coastal Marine
Scientific name: Sparus aurata
Name: Ginger Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Pelteobagrus fulvidraco
Name: Ginglymostoma
Order: Orectolobiformes
Habitat: Marine Water
Scientific name: Ginglymostoma cirratum
Name: Giraffe Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Bagrus bajad
Name: Giraffe Razorfish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Centriscops humerosus
Name: Girardinus
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Girardinus metallicus
Name: Girdled Blennies
Order: Blenniiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Homestius cyprinaceus
Name: Girdled Perch
Order: Perciformes
Habitat: Marine/Brackish/Freshwater (Indo-Pacific)
Scientific name: Terapon jarbua
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Name: Girdled Perch (Hapalogenys)
Order: Perciformes
Habitat: Marine (Asia)
Scientific name: Hapalogenys nitens
Name: Girdled Wormfish
Order: Perciformes
Habitat: Marine (Deep Sea)
Scientific name: Güntherus
Name: Girdled Wrasse
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Halichoeres melanurus
Name: Girella
Order: Perciformes
Habitat: Marine temperate Northwest Pacific
Scientific name: Girella punctata
Name: Girella Elevata
Order: Perciformes
Habitat: Marine
Scientific name: Girella elevata
Name: Girella Nigricans
Order: Perciformes
Habitat: Marine
Scientific name: Girella nigricans
Name: Girella Tricuspidata
Order: Perciformes
Habitat: Marine
Scientific name: Girella tricuspidata
Name: Girella elevata
Order: Perciformes
Habitat: Coastal Marine
Scientific name: Girella elevata
Name: Girella nigricans
Order: Perciformes
Habitat: Marine
Scientific name: Girella nigricans
Name: Girella punctata
Order: Perciformes
Habitat: Coastal Marine
Scientific name: Girella punctata
Name: Girella zebra
Order: Perciformes
Habitat: Coastal Marine
Scientific name: Girella zebra
Name: Gizzard Shad
Order: Clupeiformes
Habitat: Freshwater and brackish water in North America
Scientific name: Dorosoma cepedianum
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Name: Gizzard Shad (African)
Order: Clupeiformes
Habitat: Freshwater
Scientific name: Dorosoma cepedianum (African variant)
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Name: Gizzard Shad (Brazilian)
Order: Clupeiformes
Habitat: Freshwater (South America)
Scientific name: Dorosoma cepedianum
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Name: Gizzard Shad (Mexican)
Order: Clupeiformes
Habitat: Freshwater (North America)
Scientific name: Dorosoma petenense
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Name: Gizzard Shad (Tanzanian)
Order: Clupeiformes
Habitat: Freshwater (Africa)
Scientific name: Limnothrissa miodon
Name: Gizzard Shads
Order: Clupeiformes
Habitat: Freshwater/Brackish (Americas)
Scientific name: Dorosoma
Name: Glacier Lanternfish
Order: Myctophiformes
Habitat: Deep marine waters worldwide
Scientific name: Benthosema glaciale
Name: Gladiator Grouper
Order: Perciformes
Habitat: Marine
Scientific name: Epinephelus lanceolatus
Name: Gladiatus
Order: Perciformes
Habitat: Marine (Deep Sea)
Scientific name: Gladiatus splendidus
Name: Gladioloeuf
Order: Perciformes
Habitat: Marine
Scientific name: Gladioloeuf sp.
Name: Glandulocauda melanogenys
Order: Characiformes
Habitat: Freshwater
Scientific name: Glandulocauda melanogenys
Name: Glass Catfish
Order: Siluriformes
Habitat: Freshwater in Southeast Asia
Scientific name: Kryptopterus vitreolus
Name: Glass Gourami
Order: Anabantiformes
Habitat: Freshwater (Borneo)
Scientific name: Parosphromenus alleni
Name: Glass Knifefish
Order: Gymnotiformes
Habitat: Freshwater in South America
Scientific name: Eigenmannia virescens
Name: Glass Perchlet
Order: Perciformes
Habitat: Freshwater/Brackish
Scientific name: Ambassis nalua
Name: Glasseye Snapper
Order: Perciformes
Habitat: Marine
Scientific name: Priacanthus cruentatus
Name: Glassfish
Order: Perciformes
Habitat: Freshwater in Asia
Scientific name: Chanda nama
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Name: Glassfish (Chanda)
Order: Perciformes
Habitat: Freshwater/Brackish
Scientific name: Family Ambassidae
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Name: Glassfish (Indian)
Order: Perciformes
Habitat: Freshwater
Scientific name: Parambassis ranga
Name: Glastronema
Order: Perciformes
Habitat: Freshwater
Scientific name: Glastronema
Name: Glaucosoma
Order: Perciformes
Habitat: Marine
Scientific name: Glaucosomatidae
Name: Globefish
Order: Tetraodontiformes
Habitat: Freshwater/Brackish (Asia)
Scientific name: Tetraodon fluviatilis
Name: Glofish
Order: Cypriniformes
Habitat: Freshwater in Asia
Scientific name: Danio rerio
Name: Glossamia
Order: Perciformes
Habitat: Freshwater
Scientific name: Glossamia aprion
Name: Glossamia aprion
Order: Perciformes
Habitat: Freshwater/Brackish
Scientific name: Glossamia aprion
Name: Glossamia narindica
Order: Perciformes
Habitat: Freshwater (Australia)
Scientific name: Glossamia narindica
Name: Glossocephalus
Order: Aulopiformes
Habitat: Deep-sea
Scientific name: Glossocephalus milneri
Name: Glossodus
Order: Gonorynchiformes
Habitat: Marine (Fossil)
Scientific name: Glossodus antherinus
Name: Glossogobius
Order: Gobiiformes
Habitat: Freshwater/Brackish
Scientific name: Glossogobius giurus
Name: Glossolepis
Order: Atheriniformes
Habitat: Freshwater (New Guinea)
Scientific name: Glossolepis incisus
Name: Glossolepis Incisus
Order: Atheriniformes
Habitat: Freshwater (Red Rainbowfish)
Scientific name: Glossolepis incisus
Name: Glyphis
Order: Carcharhiniformes
Habitat: Freshwater/Brackish (River Sharks)
Scientific name: Glyphis gangeticus
Name: Glyphis gangeticus
Order: Carcharhiniformes
Habitat: Freshwater/Brackish
Scientific name: Glyphis gangeticus
Name: Glyptosternon
Order: Siluriformes
Habitat: Freshwater
Scientific name: Glyptosternon reticulatum
Name: Glyptosternum
Order: Siluriformes
Habitat: Freshwater
Scientific name: Glyptosternum reticulatum
Name: Glyptothorax
Order: Siluriformes
Habitat: Freshwater
Scientific name: Glyptothorax trilineatus
Name: Gnatfish
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Gambusia affinis
Name: Gnathagnus
Order: Stomiiformes
Habitat: Deep-sea
Scientific name: Gnathagnus cribratus
Name: Gnathagnus cribratus
Order: Perciformes
Habitat: Marine
Scientific name: Gnathagnus cribratus
Name: Gnathanacanthus
Order: Scorpaeniformes
Habitat: Marine Water
Scientific name: Gnathanacanthus goetzeei
Name: Gnathochromis
Order: Cichliformes
Habitat: Freshwater
Scientific name: Gnathochromis permaxillaris
Name: Gnatholepis anjeriana
Order: Gobiiformes
Habitat: Marine
Scientific name: Gnatholepis anjeriana
Name: Gnathophis
Order: Anguilliformes
Habitat: Marine
Scientific name: Gnathophis mystax
Name: Gnathophis cinctus
Order: Anguilliformes
Habitat: Marine
Scientific name: Gnathophis cinctus
Name: Gnathophis elongatus
Order: Anguilliformes
Habitat: Marine
Scientific name: Gnathophis elongatus
Name: Gnathophis heterognathos
Order: Anguilliformes
Habitat: Marine
Scientific name: Gnathophis heterognathos
Name: Gnathophis profundus
Order: Anguilliformes
Habitat: Marine
Scientific name: Gnathophis profundus
Name: Gnathostomus
Order: Gnathostomata
Habitat: Fossil
Scientific name: Gnathostomus primordius
Name: Goatfish
Order: Perciformes
Habitat: Marine tropical and subtropical waters
Scientific name: Mullidae
Name: Gobies
Order: Gobiiformes
Habitat: Marine/Freshwater/Brackish
Scientific name: Gobiidae spp.
Name: Gobiesox
Order: Gobiesociformes
Habitat: Marine/Freshwater
Scientific name: Gobiesocidae
Name: Gobiesox barbatulus
Order: Gobiesociformes
Habitat: Coastal Marine
Scientific name: Gobiesox barbatulus
Name: Gobiesox fluviatilis
Order: Gobiesociformes
Habitat: Freshwater (Central America)
Scientific name: Gobiesox fluviatilis
Name: Gobiesox maeandricus
Order: Gobiesociformes
Habitat: Coastal Marine
Scientific name: Gobiesox maeandricus
Name: Gobiesox strumosus
Order: Gobiesociformes
Habitat: Marine/Brackish
Scientific name: Gobiesox strumosus
Name: Gobio
Order: Cypriniformes
Habitat: Freshwater (Europe)
Scientific name: Gobio gobio
Name: Gobio albipinnatus
Order: Cypriniformes
Habitat: Freshwater (Europe)
Scientific name: Gobio albipinnatus
Name: Gobio gobio
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Gobio gobio
Name: Gobio obtusirostris
Order: Cypriniformes
Habitat: Freshwater (Europe)
Scientific name: Gobio obtusirostris
Name: Gobiodon
Order: Gobiiformes
Habitat: Marine Water
Scientific name: Gobiodon okinawae
Name: Gobiodon citrinus
Order: Gobiiformes
Habitat: Marine
Scientific name: Gobiodon citrinus
Name: Gobiodon histrio
Order: Gobiiformes
Habitat: Coral Reef
Scientific name: Gobiodon histrio
Name: Gobioidei
Order: Gobiiformes
Habitat: Freshwater and marine
Scientific name: Gobioidei sp.
Name: Gobioides
Order: Gobiiformes
Habitat: Marine Water/Brackish
Scientific name: Gobioides broussonnetii
Name: Gobioides broussonnetii
Order: Gobiiformes
Habitat: Marine/Brackish/Freshwater
Scientific name: Gobioides broussonnetii
Name: Gobiomorus
Order: Gobiiformes
Habitat: Freshwater/Brackish
Scientific name: Gobiomorus dormitor
Name: Gobionellus
Order: Gobiiformes
Habitat: Brackish/Marine
Scientific name: Gobionellus oceanicus
Name: Gobiopsis
Order: Gobiiformes
Habitat: Marine Water
Scientific name: Gobiopsis macrostoma
Name: Gobiopsis bravoi
Order: Gobiiformes
Habitat: Marine
Scientific name: Gobiopsis bravoi
Name: Gobiopterus
Order: Gobiiformes
Habitat: Brackish/Freshwater (Asia)
Scientific name: Gobiopterus chuno
Name: Gobiosoma
Order: Gobiiformes
Habitat: Marine Water
Scientific name: Gobiosoma newmani
Name: Gobiosoma dilema
Order: Gobiiformes
Habitat: Coastal Marine
Scientific name: Gobiosoma dilema
Name: Gobiosoma gobio
Order: Gobiiformes
Habitat: Coastal Marine
Scientific name: Gobiosoma gobio
Name: Gobius
Order: Gobiiformes
Habitat: Marine Water
Scientific name: Gobius niger
Name: Gobius cobitis
Order: Gobiiformes
Habitat: Coastal Marine
Scientific name: Gobius cobitis
Name: Gobius geniporus
Order: Gobiiformes
Habitat: Coastal Marine
Scientific name: Gobius geniporus
Name: Gobius niger
Order: Gobiiformes
Habitat: Marine/Brackish
Scientific name: Gobius niger
Name: Gobius pagenellus
Order: Gobiiformes
Habitat: Coastal Marine
Scientific name: Gobius pagenellus
Name: Gobiusculus
Order: Gobiiformes
Habitat: Marine Water
Scientific name: Gobiusculus flavescens
Name: Goblin Shark
Order: Lamniformes
Habitat: Deep marine waters worldwide
Scientific name: Mitsukurina owstoni
Name: Goblinfish
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Neocentropogon profundus
Name: Goby
Order: Gobiiformes
Habitat: Marine and freshwater habitats worldwide
Scientific name: Gobiidae
Name: Godfather Lampray
Order: Petromyzontiformes
Habitat: Anadromous
Scientific name: Petromyzon marinus
Name: Godzilla Goby
Order: Perciformes
Habitat: Marine
Scientific name: Obliquogobius megalops
Name: Golden Angelfish
Order: Perciformes
Habitat: Marine
Scientific name: Apolemichthys xanthopunctatus
Name: Golden Barb
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Puntius gelius
Name: Golden Bichir
Order: Polypteriformes
Habitat: Freshwater
Scientific name: Polypterus ornatipinnis
Name: Golden Butterflyfish
Order: Perciformes
Habitat: Marine
Scientific name: Chaetodon semilarvatus
Name: Golden Carp
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Carassius auratus
Name: Golden Clownfish
Order: Perciformes
Habitat: Marine
Scientific name: Amphiprion aurantia
Name: Golden Darter
Order: Perciformes
Habitat: Freshwater
Scientific name: Etheostoma aquali
Name: Golden Dorado
Order: Characiformes
Habitat: Freshwater in South America
Scientific name: Salminus brasiliensis
Name: Golden Dottyback
Order: Perciformes
Habitat: Marine
Scientific name: Pseudochromis fuscus
Name: Golden Dwarf Barb
Order: Cypriniformes
Habitat: Freshwater in Bangladesh and India
Scientific name: Pethia gelius
Name: Golden Dwarf Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax melatremus
Name: Golden Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Muraena aurea
Name: Golden Emperor
Order: Perciformes
Habitat: Marine
Scientific name: Lethrinus erythracanthus
Name: Golden Emperor Snapper
Order: Lutjaniformes
Habitat: Marine tropical Indo-Pacific
Scientific name: Lutjanus sebae
Name: Golden Flying Fish
Order: Beloniformes
Habitat: Marine
Scientific name: Cypselurus poecilopterus
Name: Golden Gar
Order: Beloniformes
Habitat: Freshwater
Scientific name: Xenentodon cancila
Name: Golden Goby
Order: Perciformes
Habitat: Marine
Scientific name: Gobius auratus
Name: Golden Gourami
Order: Anabantiformes
Habitat: Freshwater
Scientific name: Trichopodus trichopterus
Name: Golden Greyling
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Thymallus arcticus
Name: Golden Guppy
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Poecilia reticulata
Name: Golden Killifish
Order: Cyprinodontiformes
Habitat: Freshwater in Africa
Scientific name: Nothobranchius furzeri
Name: Golden Loach
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Parabotia fasciata
Name: Golden Mahseer
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Tor putitora
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Name: Golden Mahseer (Tor putitora)
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Tor putitora
Name: Golden Needlefish
Order: Beloniformes
Habitat: Marine
Scientific name: Platybelone argalus
Name: Golden Orfe
Order: Cypriniformes
Habitat: Freshwater (Europe)
Scientific name: Leuciscus idus
Name: Golden Pencilfish
Order: Characiformes
Habitat: Freshwater in South America
Scientific name: Nannostomus beckfordi
Name: Golden Perch
Order: Perciformes
Habitat: Freshwater
Scientific name: Macquaria ambigua
Name: Golden Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Corythoichthys schultzi
Name: Golden Pufferfish
Order: Tetraodontiformes
Habitat: Freshwater
Scientific name: Tetraodon mbu
Name: Golden Rabbitfish
Order: Perciformes
Habitat: Marine
Scientific name: Siganus fulvoguttatus
Name: Golden Redhorse
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Moxostoma erythrurum
Name: Golden Rivulus
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Rivulus hartii
Name: Golden Sailfin Molly
Order: Poeciliiformes
Habitat: Freshwater in Central America
Scientific name: Poecilia velifera
Name: Golden Sarcastic Fringehead
Order: Perciformes
Habitat: Marine
Scientific name: Neoclinus blanchardi
Name: Golden Shiner
Order: Cypriniformes
Habitat: Freshwater in North America
Scientific name: Notemigonus crysoleucas
Name: Golden Snapper
Order: Perciformes
Habitat: Marine/Brackish
Scientific name: Lutjanus johnii
Name: Golden Spotfin Hogfish
Order: Perciformes
Habitat: Marine
Scientific name: Bodianus opercularis
Name: Golden Spotted Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Muraena argus
Name: Golden Tilefish
Order: Perciformes
Habitat: Marine
Scientific name: Lopholatilus chamaeleonticeps
Name: Golden Topminnow
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Fundulus chrysotus
Name: Golden Trevally
Order: Perciformes
Habitat: Marine
Scientific name: Gnathanodon speciosus
Name: Golden Trout
Order: Salmoniformes
Habitat: Freshwater in North America
Scientific name: Oncorhynchus aguabonita
Name: Goldenline Barbel
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Barbus barbus
Name: Goldeye
Order: Hiodontiformes
Habitat: Freshwater in North America
Scientific name: Hiodon alosoides
Name: Goldfish
Order: Cypriniformes
Habitat: Freshwater in East Asia
Scientific name: Carassius auratus
Name: Goldline Snapper
Order: Perciformes
Habitat: Coastal Marine
Scientific name: Lutjanus fulvus
Name: Goldring Tang
Order: Acanthuriformes
Habitat: Marine Water
Scientific name: Ctenochaetus strigosus
Name: Goldstripe Sardinella
Order: Clupeiformes
Habitat: Marine Water
Scientific name: Sardinella gibbosa
Name: Golfer's Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Solegnathus hardwickii
Name: Goliath Grouper
Order: Perciformes
Habitat: Marine (Tropical Reefs)
Scientific name: Epinephelus itajara
Name: Goliath Tigerfish
Order: Characiformes
Habitat: Freshwater in Africa
Scientific name: Hydrocynus goliath
Name: Gomphosus
Order: Perciformes
Habitat: Coral Reef
Scientific name: Gomphosus varius
Name: Gomphosus Varius
Order: Perciformes
Habitat: Marine (Bird Wrasse)
Scientific name: Gomphosus varius
Name: Gomphosus caeruleus
Order: Perciformes
Habitat: Coral Reef
Scientific name: Gomphosus caeruleus
Name: Gomphosus tricolor
Order: Perciformes
Habitat: Coral Reef
Scientific name: Gomphosus tricolor
Name: Gomphosus varius
Order: Perciformes
Habitat: Marine
Scientific name: Gomphosus varius
Name: Gonadichthys
Order: Syngnathiformes
Habitat: Marine (Australia)
Scientific name: Gonadichthys cribratus
Name: Gongol
Order: Siluriformes
Habitat: Freshwater (Catfish)
Scientific name: Pimelodella cristata
Name: Gonichthys
Order: Myctophiformes
Habitat: Marine Water
Scientific name: Gonichthys coccoi
Name: Goniistius
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Goniistius zonatus
Name: Gonorynchus
Order: Gonorynchiformes
Habitat: Marine
Scientific name: Gonorynchus gonorynchus
Name: Gonorynchus gonorynchus
Order: Gonorynchiformes
Habitat: Marine
Scientific name: Gonorynchus gonorynchus
Name: Gonostoma
Order: Stomiiformes
Habitat: Marine
Scientific name: Gonostomatidae
Name: Gonostoma Gracile
Order: Stomiiformes
Habitat: Marine
Scientific name: Gonostoma gracile
Name: Gonostoma denudatum
Order: Stomiiformes
Habitat: Marine (mesopelagic)
Scientific name: Gonostoma denudatum
Name: Gonostoma elongatum
Order: Stomiiformes
Habitat: Deep-sea
Scientific name: Gonostoma elongatum
Name: Gonyaulax
Order: Dinoflagellata
Habitat: Marine (Planktonic)
Scientific name: Gonyaulax polyedra
Name: Goodea
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Goodea gracilis
Name: Goodedia
Order: Atheriniformes
Habitat: Freshwater (Australia)
Scientific name: Goodedia pescotti
Name: Goodeid
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Goodeidae
Name: Goodyera
Order: Cyprinodontiformes
Habitat: Freshwater
Scientific name: Goodea atripinnis
Name: Goonch
Order: Siluriformes
Habitat: Freshwater
Scientific name: Bagarius yarrelli
Name: Goonch Catfish
Order: Siluriformes
Habitat: Freshwater
Scientific name: Bagarius yarrelli
Name: Goongarr
Order: Perciformes
Habitat: Freshwater (Bream)
Scientific name: Nematalosa erebi
Name: Goongarrie
Order: Perciformes
Habitat: Freshwater (another name for Goongarr)
Scientific name: Nematalosa erebi
Name: Goosefish
Order: Lophiiformes
Habitat: Marine
Scientific name: Lophius americanus
Name: Gopher Rockfish
Order: Perciformes
Habitat: Marine
Scientific name: Sebastes carnatus
Name: Gorgonian Bream
Order: Perciformes
Habitat: Marine
Scientific name: Argyrops spinifer
Name: Gorgonian Prawn-goby
Order: Gobiiformes
Habitat: Marine Water
Scientific name: Tenacigobius yongei
Name: Gosa
Order: Clupeiformes
Habitat: Marine/Freshwater
Scientific name: Tenualosa ilisha
Name: Gourami
Order: Anabantiformes
Habitat: Freshwater
Scientific name: Osphronemidae
Name: Grabnutz
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax hexaodon
Name: Graceful Threadfin Bream
Order: Perciformes
Habitat: Marine Water
Scientific name: Nemipterus celebicus
Name: Gracila
Order: Perciformes
Habitat: Marine (Grouper)
Scientific name: Gracila albomarginata
Name: Gracile Pipefish
Order: Syngnathiformes
Habitat: Marine
Scientific name: Siokunichthys nigrolineatus
Name: Gracile Razorfisn
Order: Perciformes
Habitat: Marine
Scientific name: Xyrichtys martinicensis
Name: Gracilicutes
Order: Carcharhiniformes
Habitat: Marine (Western Atlantic)
Scientific name: Carcharhinus isodon
Name: Grallator
Order: Perciformes
Habitat: Fossil
Scientific name: Grallator sp.
Name: Grallophis
Order: Ophidiiformes
Habitat: Marine (deep-sea)
Scientific name: Grallophis
Name: Gramma
Order: Perciformes
Habitat: Marine Water
Scientific name: Gramma loreto
Name: Gramma loreto
Order: Perciformes
Habitat: Marine
Scientific name: Gramma loreto
Name: Gramma melacara
Order: Perciformes
Habitat: Coral Reef
Scientific name: Gramma melacara
Name: Grammatobothus
Order: Pleuronectiformes
Habitat: Marine Water
Scientific name: Grammatobothus polyophthalmus
Name: Grammatonotus
Order: Perciformes
Habitat: Deep-sea
Scientific name: Grammatonotus macrophthalmus
Name: Grammatonotus laysanus
Order: Perciformes
Habitat: Deep-sea
Scientific name: Grammatonotus laysanus
Name: Grammatorcynus
Order: Scombriformes
Habitat: Marine (Indo-Pacific)
Scientific name: Grammatorcynus bilineatus
Name: Grammatotria
Order: Cichliformes
Habitat: Freshwater
Scientific name: Grammatotria leptodonta
Name: Grammicolepis
Order: Zeiformes
Habitat: Deepwater marine
Scientific name: Grammicolepis brachiusculus
Name: Grammistes
Order: Perciformes
Habitat: Coral Reef
Scientific name: Grammistes sexlineatus
Name: Grammistidae
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Grammistes sexlineatus
Name: Grammonus
Order: Ophidiiformes
Habitat: Marine (Mediterranean)
Scientific name: Grammonus ater
Name: Grampus
Order: Odontoceti
Habitat: Marine (Pelagic)
Scientific name: Grampus griseus
Name: Grandfather Mullet
Order: Mugiliformes
Habitat: Brackish/Marine
Scientific name: Mugil cephalus
Name: Grandfather Sea Snake
Order: Elapidae
Habitat: Marine (Indo-Pacific)
Scientific name: Hydrophis viperinus
Name: Grape-eye Seabream
Order: Spariformes
Habitat: Marine (Mediterranean)
Scientific name: Boops boops
Name: Grass Carp
Order: Cypriniformes
Habitat: Freshwater in East Asia
Scientific name: Ctenopharyngodon idella
Name: Grass Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Pleuronectes quadrituberculatus
Name: Grass Pickerel
Order: Esociformes
Habitat: Freshwater
Scientific name: Esox americanus vermiculatus
Name: Grass Prawn Goby
Order: Gobiiformes
Habitat: Marine tropical Indo-Pacific
Scientific name: Ctenogobiops tangaroai
Name: Grass Snapper
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Lutjanus griseus
Name: Grass goby
Order: Gobiiformes
Habitat: Brackish (Europe)
Scientific name: Zosterisessor ophiocephalus
Name: Grasshopper Pipefish
Order: Syngnathiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Hippichthys heptagonus
Name: Gray Rockfish
Order: Scorpaeniformes
Habitat: Marine temperate North Pacific
Scientific name: Sebastes glaucus
Name: Gray Snapper
Order: Lutjaniformes
Habitat: Marine and brackish waters in the Western Atlantic
Scientific name: Lutjanus griseus
Name: Gray Triggerfish
Order: Tetraodontiformes
Habitat: Marine temperate and subtropical Atlantic
Scientific name: Balistes capriscus
Name: Grayling
Order: Salmoniformes
Habitat: Freshwater in Eurasia
Scientific name: Thymallus thymallus
Name: Graysby
Order: Perciformes
Habitat: Marine
Scientific name: Cephalopholis cruentata
Name: Grazil
Order: Scombriformes
Habitat: Marine (Oilfish)
Scientific name: Ruvettus pretiosus
Name: Grease Grouper
Order: Perciformes
Habitat: Marine
Scientific name: Epinephelus tauvina
Name: Great Barracuda
Order: Scombriformes
Habitat: Coastal Marine
Scientific name: Sphyraena barracuda
Name: Great White Shark
Order: Carcharhiniformes
Habitat: Oceanic
Scientific name: Carcharodon carcharias
Name: Greater Amberjack
Order: Perciformes
Habitat: Marine
Scientific name: Seriola dumerili
Name: Greater Argus
Order: Sciaenidae
Habitat: Marine (Spot Croaker)
Scientific name: Leiostomus xanthurus
Name: Greater Dragonfish
Order: Perciformes
Habitat: Marine
Scientific name: Trachinus draco
Name: Greater Electric Ray
Order: Torpediniformes
Habitat: Marine
Scientific name: Torpedo nobiliana
Name: Greater Frogfish
Order: Lophiiformes
Habitat: Marine
Scientific name: Antennarius commerson
Name: Greater Hammerhead
Order: Carcharhiniformes
Habitat: Marine (Great Hammerhead Shark)
Scientific name: Sphyrna mokarran
Name: Greater Lizardfish
Order: Teleostei
Habitat: Marine
Scientific name: Saurida tumbil
Name: Greater Pipefish
Order: Syngnathiformes
Habitat: Marine (Atlantic)
Scientific name: Syngnathus acus
Name: Greater Sand Eel
Order: Aulopiformes
Habitat: Coastal Marine
Scientific name: Hyperoplus lanceolatus
Name: Greater Scaup
Order: Anseriformes
Habitat: Freshwater and marine (Migratory)
Scientific name: Aythya marila
Name: Greater Seahorse
Order: Syngnathiformes
Habitat: Marine
Scientific name: Hippocampus kelloggi
Name: Greater Soapfish
Order: Perciformes
Habitat: Marine
Scientific name: Diploprion bifasciatum
Name: Greater Weever
Order: Perciformes
Habitat: Marine
Scientific name: Trachinus draco
Name: Green Anemonefish
Order: Perciformes
Habitat: Coral Reef
Scientific name: Amphiprion akindynos
Name: Green Bass
Order: Perciformes
Habitat: Freshwater
Scientific name: Micropterus salmoides (Green variant)
Name: Green Blenny
Order: Blenniiformes
Habitat: Marine
Scientific name: Blennius ocellaris
Name: Green Chromide
Order: Perciformes
Habitat: Brackish/Freshwater
Scientific name: Etroplus suratensis
Name: Green Chromis
Order: Perciformes
Habitat: Marine tropical Indo-Pacific
Scientific name: Chromis viridis
Name: Green Comber
Order: Perciformes
Habitat: Marine
Scientific name: Serranus cabrilla
Name: Green Dartfish
Order: Gobiiformes
Habitat: Marine tropical Indo-Pacific
Scientific name: Ptereleotris microlepis
Name: Green Devil Fish
Order: Perciformes
Habitat: Marine
Scientific name: Paraplesiops meleagris
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Name: Green Dragon (Syngnathus acus)
Order: Syngnathiformes
Habitat: Marine (Pipefish)
Scientific name: Syngnathus acus
Name: Green Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax prasinus
Name: Green Fingerfish
Order: Perciformes
Habitat: Brackish/Marine
Scientific name: Monodactylus argenteus
Name: Green Flounder
Order: Pleuronectiformes
Habitat: Marine
Scientific name: Rhombosolea tapirina
Name: Green Garden Eel
Order: Anguilliformes
Habitat: Marine
Scientific name: Heteroconger hassi
Name: Green Garfish
Order: Beloniformes
Habitat: Marine/Brackish
Scientific name: Strongylura marina
Name: Green Gobbler
Order: Perciformes
Habitat: Marine
Scientific name: Gobiodon atrangulatus
Name: Green Goblin Shark
Order: Lamniformes
Habitat: Deepwater marine
Scientific name: Mitsukurina owstoni
Name: Green Gravy Fish
Order: Perciformes
Habitat: Freshwater/Brackish
Scientific name: Eleotris pisonis
Name: Green Humphead Parrotfish
Order: Perciformes
Habitat: Marine
Scientific name: Bolbometopon muricatum
Name: Green Jobfish
Order: Perciformes
Habitat: Marine
Scientific name: Aprion virescens
Name: Green Moray
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax funebris
Name: Green Moray Eel
Order: Anguilliformes
Habitat: Marine Water
Scientific name: Gymnothorax funebris
Name: Green Muraena
Order: Anguilliformes
Habitat: Marine (another name for Green Moray)
Scientific name: Gymnothorax funebris
Name: Green Napoleon Wrasse
Order: Perciformes
Habitat: Marine (Humphead Wrasse)
Scientific name: Cheilinus undulatus
Name: Green Neon Tetra
Order: Characiformes
Habitat: Freshwater
Scientific name: Paracheirodon simulans
Name: Green Pike
Order: Esociformes
Habitat: Freshwater (Northern Pike)
Scientific name: Esox lucius
Name: Green Pike Conger
Order: Anguilliformes
Habitat: Marine
Scientific name: Conger oceanicus
Name: Green Piranha
Order: Characiformes
Habitat: Freshwater
Scientific name: Serrasalmus rhombeus
Name: Green Puff
Order: Tetraodontiformes
Habitat: Freshwater
Scientific name: Tetraodon leiurus
Name: Green Pufferfish
Order: Tetraodontiformes
Habitat: Brackish in Southeast Asia
Scientific name: Tetraodon nigroviridis
Name: Green Razorfish
Order: Perciformes
Habitat: Marine
Scientific name: Xyrichtys novacula
Name: Green Sawfish
Order: Pristiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Pristis zijsron
Name: Green Snapper
Order: Perciformes
Habitat: Marine (Indo-Pacific)
Scientific name: Lutjanus semicinctus
Name: Green Spotted Datz
Order: Perciformes
Habitat: Freshwater and brackish in Southeast Asia
Scientific name: Datz microlepis
Name: Green Spotted Puffer
Order: Tetraodontiformes
Habitat: Brackish and freshwater in Southeast Asia
Scientific name: Dichotomyctere fluviatilis
Name: Green Sturgeon
Order: Acipenseriformes
Habitat: Marine/Freshwater
Scientific name: Acipenser medirostris
Name: Green Sunfish
Order: Perciformes
Habitat: Freshwater in North America
Scientific name: Lepomis cyanellus
Name: Green Swordtail
Order: Cyprinodontiformes
Habitat: Freshwater (Mexico)
Scientific name: Xiphophorus hellerii
Name: Green Terror
Order: Cichliformes
Habitat: Freshwater in South America
Scientific name: Andinoacara rivulatus
Name: Green Tilefish
Order: Perciformes
Habitat: Marine (South Atlantic)
Scientific name: Lopholatilus villarii
Name: Green Wrasse
Order: Perciformes
Habitat: Marine
Scientific name: Labrus viridis
Name: Greenback Cutthroat Trout
Order: Salmoniformes
Habitat: Freshwater
Scientific name: Oncorhynchus clarkii stomias
Name: Greenback Flounder
Order: Pleuronectiformes
Habitat: Coastal Marine
Scientific name: Rhombosolea tapirina
Name: Greenback Grayling
Order: Osmeriformes
Habitat: Freshwater (Australia)
Scientific name: Prototroctes maraena
Name: Greenband Parrotfish
Order: Perciformes
Habitat: Coral Reef
Scientific name: Sparisoma atomarium
Name: Greenland Cod
Order: Gadiformes
Habitat: Marine Water
Scientific name: Gadus ogac
Name: Greenland Halibut
Order: Pleuronectiformes
Habitat: Deep marine waters of the North Atlantic
Scientific name: Reinhardtius hippoglossoides
Name: Greenland Shark
Order: Squaliformes
Habitat: Arctic and North Atlantic marine waters
Scientific name: Somniosus microcephalus
Name: Greenling
Order: Perciformes
Habitat: Marine
Scientific name: Hexagrammos decagrammus
Name: Greenpeace Skate
Order: Rajiformes
Habitat: Deep-sea
Scientific name: Dipturus gudgeri
Name: Grellis
Order: Perciformes
Habitat: Marine Water
Scientific name: Girella tricuspidata
Name: Grenadier
Order: Gadiformes
Habitat: Marine
Scientific name: Macrouridae
Name: Grey Angelfish
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Pomacanthus arcuatus
Name: Grey Anglerfish
Order: Lophiiformes
Habitat: Deep-sea
Scientific name: Lophius piscatorius
Name: Grey Eel
Order: Anguilliformes
Habitat: Freshwater/Marine (European Eel)
Scientific name: Anguilla anguilla
Name: Grey Gurnard
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Eutrigla gurnardus
Name: Grey Hamlet
Order: Perciformes
Habitat: Marine
Scientific name: Hypoplectrus unicolor
Name: Grey Lady
Order: Perciformes
Habitat: Marine (Bluefish)
Scientific name: Pomatomus saltatrix
Name: Grey Mullets
Order: Mugiliformes
Habitat: Marine/Brackish/Freshwater
Scientific name: Mugilidae
Name: Grey Nurse Shark
Order: Lamniformes
Habitat: Marine
Scientific name: Carcharias taurus
Name: Grey Reef Shark
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Carcharhinus amblyrhynchos
Name: Grey Skate
Order: Rajiformes
Habitat: Marine (Northeast Atlantic)
Scientific name: Dipturus batis
Name: Grey Triggerfish
Order: Tetraodontiformes
Habitat: Marine
Scientific name: Balistes capriscus
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Name: Grey Triggerfish (Balistes)
Order: Tetraodontiformes
Habitat: Coastal Marine
Scientific name: Balistes capriscus
Name: Griffis' Angelfish
Order: Perciformes
Habitat: Marine (Pacific)
Scientific name: Apolemichthys griffisi
Name: Grilse
Order: Salmoniformes
Habitat: Freshwater/Marine (Young Salmon)
Scientific name: Salmo salar
Name: Grim Reaper Anglerfish
Order: Lophiiformes
Habitat: Marine Water
Scientific name: Melanocetus johnsonii
Name: Grimaldichthys
Order: Ophidiiformes
Habitat: Deepwater marine
Scientific name: Grimaldichthys profundissimus
Name: Grimpeutes
Order: No specific taxonomic group
Habitat: Marine
Scientific name: Grimpeutes
Name: Grindal Worm
Order: Cyprinodontiformes
Habitat: Freshwater (Aquaculture)
Scientific name: Enchytraeus buchholzi
Name: Gringo
Order: Perciformes
Habitat: Marine
Scientific name: Haemulon flavolineatum
Name: Grinning Tonguefish
Order: Pleuronectiformes
Habitat: Marine Water
Scientific name: Cynoglossus puncticeps
Name: Grissle
Order: Salmoniformes
Habitat: Freshwater/Marine (Young Salmon)
Scientific name: Salmo salar
Name: Grizzle Reef Shark
Order: Carcharhiniformes
Habitat: Coastal Marine
Scientific name: Carcharhinus plumbeus
Name: Grobby
Order: Perciformes
Habitat: Freshwater/Brackish
Scientific name: Eleotris fusca
Name: Groby
Order: Perciformes
Habitat: Freshwater/Brackish
Scientific name: Eleotris fusca
Name: Groper
Order: Perciformes
Habitat: Marine (Giant Grouper)
Scientific name: Epinephelus lanceolatus
Name: Ground Shark
Order: Carcharhiniformes
Habitat: Marine
Scientific name: Carcharhinidae
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Name: Ground Shark (various)
Order: Carcharhiniformes
Habitat: Marine Water
Scientific name: Carcharhinus spp.
Name: Grouper
Order: Perciformes
Habitat: Marine tropical and subtropical waters
Scientific name: Epinephelinae
Name: Grundle
Order: Cypriniformes
Habitat: Freshwater
Scientific name: Gobio gobio
Name: Grunion
Order: Atheriniformes
Habitat: Marine temperate waters of California
Scientific name: Leuresthes tenuis
Name: Grunt
Order: Perciformes
Habitat: Marine tropical and subtropical waters
Scientific name: Haemulidae
Name: Grunt Sculpin
Order: Scorpaeniformes
Habitat: Marine Water
Scientific name: Rhamphocottus richardsonii
Name: Grunter
Order: Perciformes
Habitat: Marine/Brackish/Freshwater
Scientific name: Pomadasyidae
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Name: Grunter (various)
Order: Perciformes
Habitat: Marine Water/Brackish
Scientific name: Pomadasys spp.
Name: Guadalupe Bass
Order: Perciformes
Habitat: Freshwater
Scientific name: Micropterus treculii
Name: Guavina
Order: Perciformes
Habitat: Freshwater/Brackish
Scientific name: Guavina guavina
Name: Gudgeon
Order: Cypriniformes
Habitat: Freshwater in Eurasia
Scientific name: Gobio gobio
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Name: Gudgeon (Australian)
Order: Perciformes
Habitat: Freshwater
Scientific name: Gobiomorphus australis
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Name: Gudgeon (Marine)
Order: Perciformes
Habitat: Marine
Scientific name: Gobiidae (Marine species)
Name: Guentherus
Order: Aulopiformes
Habitat: Bathypelagic
Scientific name: Guentherus altivelis
Name: Guentherus tener
Order: Aulopiformes
Habitat: Bathypelagic
Scientific name: Guentherus tener
Name: Guiana Humbug
Order: Perciformes
Habitat: Marine (Western Atlantic)
Scientific name: Chaetodon ocellatus
Name: Guinea Fowl Puffer
Order: Tetraodontiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Arothron meleagris
Name: Guineafowl Puffer
Order: Tetraodontiformes
Habitat: Marine tropical Indo-Pacific
Scientific name: Arothron meleagris
Name: Guitarfish
Order: Rajiformes
Habitat: Marine tropical and temperate waters
Scientific name: Rhinobatidae
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Name: Guitarfish (Rhina)
Order: Rhinopristiformes
Habitat: Marine (Bowmouth Guitarfish)
Scientific name: Rhina ancylostoma
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Name: Guitarfish (Rhynchobatus)
Order: Rhinopristiformes
Habitat: Marine (Indo-Pacific)
Scientific name: Rhynchobatus djiddensis
Name: Gulang
Order: Clupeiformes
Habitat: Marine (Pilchard)
Scientific name: Sardina pilchardus
Name: Gulper Eel
Order: Saccopharyngiformes
Habitat: Deep marine waters worldwide
Scientific name: Eurypharynx pelecanoides
Name: Gulper Shark
Order: Squaliformes
Habitat: Marine
Scientific name: Centrophorus granulosus
Name: Gummidge
Order: Pleuronectiformes
Habitat: Marine (Fan-bellied Leatherjacket)
Scientific name: Monacanthus chinensis
Name: Gummy Shark
Order: Carcharhiniformes
Habitat: Marine Water
Scientific name: Mustelus antarcticus
Name: Gunnel
Order: Perciformes
Habitat: Marine
Scientific name: Pholidae
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Name: Gunnel (various)
Order: Perciformes
Habitat: Marine Water
Scientific name: Pholis spp.
Name: Gunnell
Order: Perciformes
Habitat: Marine
Scientific name: Pholidae
Name: Gunnels
Order: Perciformes
Habitat: Marine
Scientific name: Pholidae sp.
Name: Guppy
Order: Poeciliiformes
Habitat: Freshwater in South America
Scientific name: Poecilia reticulata
Name: Gurnard
Order: Perciformes
Habitat: Marine temperate and tropical waters
Scientific name: Triglidae
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Name: Gurnard (various)
Order: Scorpaeniformes
Habitat: Marine Water
Scientific name: Chelidonichthys spp.
Name: Gurnard Perch
Order: Perciformes
Habitat: Marine
Scientific name: Neosebastes scorpaenoides
Name: Guro
Order: Scombriformes
Habitat: Marine (Snake Mackerel)
Scientific name: Gempylus serpens
Name: Gymnallabes typus
Order: Siluriformes
Habitat: Freshwater
Scientific name: Gymnallabes typus
Name: Gymnapogon
Order: Gobiiformes
Habitat: Marine
Scientific name: Gymnapogon japonicus
Name: Gymnarchus
Order: Osteoglossiformes
Habitat: Freshwater (Africa)
Scientific name: Gymnarchus niloticus
Name: Gymnelis
Order: Perciformes
Habitat: Marine (Eelpout)
Scientific name: Gymnelus retrodorsalis
Name: Gymnelis viridis
Order: Perciformes
Habitat: Marine
Scientific name: Gymnelis viridis
Name: Gymnocanthus tricuspis
Order: Scorpaeniformes
Habitat: Marine
Scientific name: Gymnocanthus tricuspis
Name: Gymnocephalus
Order: Perciformes
Habitat: Freshwater/Brackish
Scientific name: Gymnocephalus cernua
Name: Gymnocranius
Order: Perciformes
Habitat: Coastal Marine
Scientific name: Gymnocranius grandoculis
Name: Gymnodraco
Order: Perciformes
Habitat: Marine Water
Scientific name: Gymnodraco acuticeps
Name: Gymnodraco acuticeps
Order: Perciformes
Habitat: Marine (Antarctic)
Scientific name: Gymnodraco acuticeps
Name: Gymnogeophagus balzanii
Order: Cichliformes
Habitat: Freshwater
Scientific name: Gymnogeophagus balzanii
Name: Gymnomuraena zebra
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnomuraena zebra
Name: Gymnosarda unicolor
Order: Scombriformes
Habitat: Marine
Scientific name: Gymnosarda unicolor
Name: Gymnoscopelus nicholsi
Order: Myctophiformes
Habitat: Marine (deep-sea)
Scientific name: Gymnoscopelus nicholsi
Name: Gymnothorax
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax funebris
Name: Gymnothorax Castaneus
Order: Anguilliformes
Habitat: Marine (Panamic Green Moray)
Scientific name: Gymnothorax castaneus
Name: Gymnothorax Favagineus
Order: Anguilliformes
Habitat: Marine (Honeycomb Moray)
Scientific name: Gymnothorax favagineus
Name: Gymnothorax Undulatus
Order: Anguilliformes
Habitat: Marine (Undulated Moray)
Scientific name: Gymnothorax undulatus
Name: Gymnothorax favagineus
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax favagineus
Name: Gymnothorax mordax
Order: Anguilliformes
Habitat: Marine
Scientific name: Gymnothorax mordax
Name: Gymnotus
Order: Gymnotiformes
Habitat: Freshwater
Scientific name: Gymnotus carapo
Name: Gymnura
Order: Myliobatiformes
Habitat: Marine (Butterfly Ray)
Scientific name: Gymnura micrura
Name: Gymnura Japonica
Order: Myliobatiformes
Habitat: Marine (Japanese Butterfly Ray)
Scientific name: Gymnura japonica
Name: Gymnura altavela
Order: Myliobatiformes
Habitat: Marine
Scientific name: Gymnura altavela
Name: Gynacantha
Order: Atheriniformes
Habitat: Freshwater
Scientific name: Gynacantha erektius
Name: Gypsy Fish
Order: Perciformes
Habitat: Marine (Painted Comber)
Scientific name: Serranus scriba
Name: Gyrodinium
Order: Dinoflagellates
Habitat: Marine Water
Scientific name: Gyrodinium spirale
| Name | Order | Habitat | Scientific name |
|---|---|---|---|
| Gadella | Gadiformes | Marine Water | Gadella marci |
| Gadella filifera | Gadiformes | Deep-sea | Gadella filifera |
| Gadella imberbis | Gadiformes | Deep-sea | Gadella imberbis |
| Gadella obscura | Gadiformes | Deep-sea | Gadella obscura |
| Gadiculus | Gadiformes | North Atlantic | Gadiculus argenteus |
| Gadiculus thori | Gadiformes | North Atlantic | Gadiculus thori |
| Gadus | Gadiformes | Marine Water | Gadus morhua |
| Gadus macrocephalus | Gadiformes | North Pacific | Gadus macrocephalus |
| Gadus ogac | Gadiformes | Arctic | Gadus ogac |
| Gafftopsail Catfish | Siluriformes | Marine and brackish waters of the Atlantic | Bagre marinus |
| Gag | Perciformes | Marine | Mycteroperca microlepis |
| Gagata | Siluriformes | Freshwater (Asia) | Gagata cenia |
| Gagata gagata | Siluriformes | Freshwater (Asia) | Gagata gagata |
| Gagata melanocheir | Siluriformes | Freshwater (Asia) | Gagata melanocheir |
| Gagata nangra | Siluriformes | Freshwater (Asia) | Gagata nangra |
| Gagata sexualis | Siluriformes | Freshwater (Asia) | Gagata sexualis |
| Gagea | Cypriniformes | Freshwater (Asia) | Gagea sp. |
| Gaidropsarus | Gadiformes | Marine Water | Gaidropsarus vulgaris |
| Gaigeria | Perciformes | Freshwater | Gaigeria macracanthus |
| Galapagos Batfish | Lophiiformes | Marine | Ogcocephalus darwini |
| Galapagos Grunt | Perciformes | Marine | Haemulon steindachneri |
| Galapagos Shark | Carcharhiniformes | Marine | Carcharhinus galapagensis |
| Galaxias | Osmeriformes | Freshwater | Galaxias |
| Galaxias brevipinnis | Osmeriformes | Freshwater (New Zealand) | Galaxias brevipinnis |
| Galaxias maculatus | Osmeriformes | Freshwater (Southern Hemisphere) | Galaxias maculatus |
| Galaxias olidus | Osmeriformes | Freshwater (Australia) | Galaxias olidus |
| Galaxiella munda | Osmeriformes | Freshwater (Australia) | Galaxiella munda |
| Galaxiella nigrostriata | Osmeriformes | Freshwater (Australia) | Galaxiella nigrostriata |
| Galeichthys | Siluriformes | Marine Water | Galeichthys feliceps |
| Galeichthys ater | Siluriformes | Marine (Africa) | Galeichthys ater |
| Galeichthys peruvianus | Siluriformes | Marine (Peru) | Galeichthys peruvianus |
| Galeocerdo | Carcharhiniformes | Marine tropical and temperate waters worldwide | Galeocerdo cuvier |
| Galeocerdo cuvier | Carcharhiniformes | Marine | Galeocerdo cuvier |
| Galeoides | Perciformes | Marine Water | Galeoides decadactylus |
| Galeorhinus | Carcharhiniformes | Marine Water | Galeorhinus galeus |
| Galeorhinus galeus | Carcharhiniformes | Temperate Marine | Galeorhinus galeus |
| Galeus | Carcharhiniformes | Deep-sea | Galeus melastomus |
| Galeus atlanticus | Carcharhiniformes | Deep-sea | Galeus atlanticus |
| Galeus eastmani | Carcharhiniformes | Deep-sea | Galeus eastmani |
| Galeus murinus | Carcharhiniformes | Deep-sea | Galeus murinus |
| Galjoen | Perciformes | Marine temperate South Africa | Dichistius capensis |
| Gambusia | Poeciliiformes | Freshwater in North America | Gambusia affinis |
| Gambusia holbrooki | Cyprinodontiformes | Freshwater (North America) | Gambusia holbrooki |
| Gambusia nobilis | Cyprinodontiformes | Freshwater (North America) | Gambusia nobilis |
| Ganges River Dolphin | Cetacea | Freshwater (Ganges River) | Platanista gangetica |
| Ganges Shark | Carcharhiniformes | Freshwater/Brackish | Glyphis gangeticus |
| Ganges Stingray | Myliobatiformes | Freshwater | Himantura fluviatilis |
| Gar | Lepisosteiformes | Freshwater and brackish waters in North and Central America | Lepisosteus spp. |
| Garden Eel | Anguilliformes | Marine | Heteroconger hassi |
| Gardnerella | Atheriniformes | Freshwater | Gardnerella bancarellicola |
| Garfishes | Beloniformes | Marine/Freshwater | Belonidae |
| Gargantuan Goby | Perciformes | Marine (Indo-Pacific) | Gobiidae |
| Gargantuan Grouper | Perciformes | Marine (Tropical Indo-Pacific) | Hyporthodus darwinensis |
| Gargantuan Moray Eel | Anguilliformes | Marine (Indo-Pacific) | Gymnothorax javanicus |
| Gargantuan Perch | Perciformes | Freshwater (Africa) | Lates uwis |
| Gargantuan Shark | Carcharhiniformes | Marine (Worldwide) | Carcharhinus |
| Gargantuan Snakehead | Perciformes | Freshwater (Asia) | Channa argus |
| Gargantuan Triggerfish | Tetraodontiformes | Marine (Tropical and Subtropical Oceans) | Balistidae |
| Gargaropteron | Perciformes | Freshwater (South Asia) | Gargaropteron semilunare |
| Gargoyles | Scorpaeniformes | Marine (Tropical and Subtropical Oceans) | Scorpaenidae |
| Garibaldi | Perciformes | Marine temperate Pacific Ocean | Hypsypops rubicundus |
| Garibaldi Damselfish | Perciformes | Marine | Hypsypops rubicundus |
| Garibaldia | Perciformes | Marine | Hypsypops rubicundus |
| Garmouth | Perciformes | Marine Water | Chirocentrus nudus |
| Garmouth Sea Catfish | Siluriformes | Marine/Brackish (Western Atlantic) | Ariopsis felis |
| Garra | Cypriniformes | Freshwater | Garra rufa |
| Garra annandalei | Cypriniformes | Freshwater (Asia) | Garra annandalei |
| Garra gotyla | Cypriniformes | Freshwater (Asia) | Garra gotyla |
| Garra lamta | Cypriniformes | Freshwater (Asia) | Garra lamta |
| Garra mullya | Cypriniformes | Freshwater (Asia) | Garra mullya |
| Garrick | Perciformes | Marine | Lichia amia |
| Gasparilla | Perciformes | Freshwater/Brackish (Americas) | Eleotris pisonis |
| Gasteropelecidae | Characiformes | Freshwater (South America) | Gasteropelecidae |
| Gasteropelecus | Characiformes | Freshwater | Gasteropelecus sternicla |
| Gasteropelecus sternicla | Characiformes | Freshwater (South America) | Gasteropelecus sternicla |
| Gasteroscotias | Perciformes | Marine Water | Gasteroscotias quadrispinosus |
| Gasterosteidae | Gasterosteiformes | Freshwater/Brackish/Marine (Northern Hemisphere) | Gasterosteidae |
| Gasterosteus | Gasterosteiformes | Freshwater/Brackish/Marine | Gasterosteus aculeatus |
| Gasterosteus aculeatus | Gasterosteiformes | Freshwater/Brackish/Marine | Gasterosteus aculeatus |
| Gastrocyprinus | Cypriniformes | Freshwater | Gastrocyprinus danjiangensis |
| Gastromyzon | Cypriniformes | Freshwater | Gastromyzon leuseriensis |
| Gastropoma | Perciformes | Marine (Deep Sea) | Gastropoma bicorne |
| Gastropteron | Cephalaspidea | Marine (Indo-Pacific) | Gastropteron rubrum |
| Gastrotheca | Anura | Freshwater (South America) | Gastrotheca marsupiata |
| Gatfishes | Siluriformes | Freshwater (Africa) | Auchenoglanis |
| Gatto di Mare | Chimaeriformes | Marine (Northeastern Atlantic) | Chimaera monstrosa |
| Gaussia | Copepoda | Marine (Deep Sea) | Gaussia princeps |
| Gavia | Gaviiformes | Freshwater/Marine (Northern Hemisphere) | Gavia immer |
| Gavial | Crocodilia | Freshwater (India) | Gavialis gangeticus |
| Gawana | Cypriniformes | Freshwater (Asia) | Carassius auratus |
| Gelasimus | Decapoda | Marine/Brackish (Atlantic) | Gelasimus pugilator |
| Gelatinous Snailfish | Scorpaeniformes | Deepwater marine | Liparis fabricii |
| Gelt | Osmeriformes | Freshwater/Marine | Osmerus mordax |
| Gempylid Snake Mackerel | Perciformes | Marine | Gempylidae |
| Gempylidae | Perciformes | Marine (Deep Sea) | Gempylidae |
| Gempylus | Perciformes | Marine (Worldwide) | Gempylus serpens |
| Gempylus serpens | Scombriformes | Marine | Gempylus serpens |
| Genicanthus | Perciformes | Marine (Indo-Pacific) | Genicanthus melanospilos |
| Genidens | Siluriformes | Brackish/Marine (South America) | Genidens genidens |
| Genidens genidens | Siluriformes | Marine/Brackish | Genidens genidens |
| Genie's Moray | Anguilliformes | Marine | Gymnothorax geniei |
| Gentle Moray | Anguilliformes | Marine | Gymnothorax clepsydra |
| Gentle Nurse Shark | Orectolobiformes | Marine Water | Leptocharias smithii |
| Gentle Shark | Hexanchiformes | Marine | Hexanchus griseus |
| Genypterus | Ophidiiformes | Marine (South Africa) | Genypterus capensis |
| Genypterus blacodes | Ophidiiformes | Marine | Genypterus blacodes |
| Geometric Moray | Anguilliformes | Marine | Gymnothorax griseus |
| Geophagus | Cichliformes | Freshwater in South America | Geophagus spp. |
| Geophagus Brasiliensis | Perciformes | Freshwater | Geophagus brasiliensis |
| Geophagus Dicrozoster | Perciformes | Freshwater | Geophagus dicrozoster |
| Geophagus Proximus | Perciformes | Freshwater | Geophagus proximus |
| Geophagus Winemilleri | Perciformes | Freshwater | Geophagus winemilleri |
| Geophagus altifrons | Perciformes | Freshwater | Geophagus altifrons |
| Geophilus | Geophilidae | Terrestrial (Worldwide) | Geophilus electricus |
| Geotria | Petromyzontiformes | Freshwater/Marine (Southern Hemisphere) | Geotria australis |
| Geotria australis | Petromyzontiformes | Freshwater/Marine (anadromous) | Geotria australis |
| Gephyroberyx | Beryciformes | Deepwater marine | Gephyroberyx darwinii |
| German Sturgeon | Acipenseriformes | Freshwater/Brackish/Marine (Europe) | Acipenser sturio |
| Gerreidae | Perciformes | Marine/Brackish | Gerreidae |
| Gerres | Perciformes | Marine Water | Gerres equulus |
| Gerres equulus | Perciformes | Coastal Marine | Gerres equulus |
| Gerres erythrourus | Perciformes | Coastal Marine | Gerres erythrourus |
| Gerres filamentosus | Perciformes | Marine/Brackish | Gerres filamentosus |
| Gerres longirostris | Perciformes | Coastal Marine | Gerres longirostris |
| Gerrhosaurus | Perciformes | Freshwater (Africa) | Gerrhosaurus major |
| Geryon | Decapoda | Marine (Atlantic) | Geryon quinquedens |
| Gesneriaceae | Lamiales | Terrestrial (Tropical and Subtropical Regions) | Gesneriaceae |
| Gessami | Perciformes | Marine (Deep Sea) | Gressami sp. |
| Gesser | Perciformes | Coastal Marine | Gerres oyena |
| Getron | Perciformes | Freshwater (Africa) | Getron microlepis |
| Ghanian Tongue Sole | Pleuronectiformes | Marine (West Africa) | Cynoglossus senegalensis |
| Gharial | Crocodilia | Freshwater (India) | Gavialis gangeticus |
| Ghost Catfish | Siluriformes | Freshwater (Southeast Asia) | Kryptopterus vitreolus |
| Ghost Catshark | Carcharhiniformes | Marine | Apristurus sp. |
| Ghost Knifefish | Gymnotiformes | Freshwater in South America | Apteronotus albifrons |
| Ghost Pipefish | Syngnathiformes | Marine | Solenostomidae |
| Ghost Redhorse | Cypriniformes | Freshwater (North America) | Moxostoma erythrurum |
| Ghost Shark | Chimaeriformes | Deep marine waters worldwide | Chimaeridae |
| Ghost Shiner | Cypriniformes | Freshwater (North America) | Notropis buchanani |
| Ghost Skirt Tetra | Characiformes | Freshwater (South America) | Gymnocorymbus ternetzi |
| Ghost Spotted Trunkfish | Tetraodontiformes | Marine (Indo-Pacific) | Tetrosomus concatenatus |
| Ghost Tentaclefish | Batrachoidiformes | Marine (Atlantic Ocean) | Halobatrachus didactylus |
| Ghostfish | Perciformes | Marine (Indo-Pacific) | Pterois miles |
| Ghostpipefish | Syngnathiformes | Marine (Indo-Pacific) | Solenostomus paradoxus |
| Giant Acra | Perciformes | Marine (Coastal) | Rachycentron canadum |
| Giant African Threadfin | Perciformes | Marine (West Africa) | Polydactylus quadrifilis |
| Giant Barb | Cypriniformes | Freshwater (Southeast Asia) | Catlocarpio siamensis |
| Giant Barracuda | Scombriformes | Marine Water | Sphyraena barracuda |
| Giant Barramundi | Perciformes | Freshwater/Brackish/Marine | Lates calcarifer |
| Giant Bass | Perciformes | Marine (Eastern Pacific) | Stereolepis gigas |
| Giant Basslet | Perciformes | Marine | Lipogramma anabantoides |
| Giant Blenny | Blenniiformes | Marine | Heterostichus rostratus |
| Giant Blind Cave Fish | Cypriniformes | Freshwater (Africa) | Caecorobius |
| Giant Bottlenose | Perciformes | Marine | Hyperoglyphe perciformis |
| Giant Boxfish | Tetraodontiformes | Marine | Anoplocapros lenticularis |
| Giant Bullhead Catfish | Siluriformes | Freshwater (Australia) | Tandanus tandanus |
| Giant Carpet Shark | Orectolobiformes | Marine | Eucrossorhinus dasypogon |
| Giant Catfish | Siluriformes | Freshwater (Mekong Basin) | Pangasianodon gigas |
| Giant Cave Fish | Cypriniformes | Freshwater (China) | Sinocyclocheilus anshuiensis |
| Giant Cetoscolopes | Gobiiformes | Marine (Deep Sea) | Cetoscolopes magnus |
| Giant Cichlid | Perciformes | Freshwater (Lake Tanganyika) | Boulengerochromis microlepis |
| Giant Clam | Veneroida | Marine (Indo-Pacific) | Tridacna gigas |
| Giant Conch | Gastropoda | Marine (Western Atlantic) | Strombus gigas |
| Giant Crawfish | Decapoda | Freshwater (Australia) | Cherax cainii |
| Giant Danio | Cypriniformes | Freshwater in Asia | Devario aequipinnatus |
| Giant Devil Ray | Myliobatiformes | Marine (Tropical and Subtropical Oceans) | Mobulidae |
| Giant Devilfish | Octopoda | Marine (North Pacific) | Octopus dofleini |
| Giant Dysoxylum | Sapindales | Terrestrial (Southeast Asia) | Dysoxylum mollissimum |
| Giant Earthworm | Clitellata | Terrestrial (Australia) | Megascolides australis |
| Giant Eel | Anguilliformes | Freshwater/Marine (Atlantic/Europe) | Anguilla anguilla |
| Giant Elephantfish | Osteoglossiformes | Freshwater (Africa) | Mormyridae |
| Giant Empire Goby | Gobiiformes | Marine (Indo-Pacific) | Eleotris amblyopsis |
| Giant Freshwater Stingray | Myliobatiformes | Freshwater (Southeast Asia) | Himantura polylepis |
| Giant Frogfish | Lophiiformes | Marine (Indo-Pacific) | Antennarius commerson |
| Giant Fundulus | Cyprinodontiformes | Brackish/Marine (Atlantic) | Fundulus grandis |
| Giant Garfish | Beloniformes | Marine (Indo-Pacific) | Tylosurus crocodilus |
| Giant Gars | Lepisosteiformes | Freshwater/Brackish (North America) | Atractosteus spatula |
| Giant Gourami | Anabantiformes | Freshwater in Southeast Asia | Osphronemus goramy |
| Giant Grenadier | Gadiformes | Marine (North Atlantic) | Macrourus berglax |
| Giant Ground Shark | Carcharhiniformes | Marine (Worldwide) | Carcharhinus longimanus |
| Giant Groundling | Perciformes | Marine (Indo-Pacific) | Gobiidae |
| Giant Grouper | Perciformes | Marine | Epinephelus lanceolatus |
| Giant Hagfish | Myxiniformes | Deep marine waters | Eptatretus carlhubbsi |
| Giant Hake | Gadiformes | Marine | Macruronus novaezelandiae |
| Giant Hawkfish | Perciformes | Marine (Eastern Pacific) | Cirrhitus rivulatus |
| Giant Herring | Clupeiformes | Marine/Brackish (Worldwide) | Elops saurus |
| Giant Hilsa | Clupeiformes | Marine/Brackish/Freshwater (Indo-Pacific) | Tenualosa ilisha |
| Giant Hinge-beaked Prawn | Decapoda | Marine (Indo-Pacific) | Rhynchocinetes typus |
| Giant Huchen | Salmoniformes | Freshwater (Siberia) | Hucho taimen |
| Giant Ichthyoplankter | Perciformes | Deepwater marine | Gigantura indica |
| Giant Isopod | Isopoda | Marine (Deep Sea) | Bathynomus giganteus |
| Giant Kelpfish | Perciformes | Marine temperate Pacific Ocean | Heterostichus rostratus |
| Giant Kingfish | Perciformes | Marine (Indo-Pacific) | Caranx ignobilis |
| Giant Kokopu | Osmeriformes | Freshwater | Galaxias argenteus |
| Giant Kucher | Perciformes | Marine (Indo-Pacific) | Oxycirrhites typus |
| Giant Lake Trout | Salmoniformes | Freshwater (North America) | Salvelinus namaycush |
| Giant Leatherjacket | Tetraodontiformes | Marine (Worldwide) | Aluterus monoceros |
| Giant Lionfish | Scorpaeniformes | Marine (Indo-Pacific) | Pterois volitans |
| Giant Manta Ray | Myliobatiformes | Marine | Mobula birostris |
| Giant Mekong Catfish | Siluriformes | Freshwater | Pangasianodon gigas |
| Giant Moray | Anguilliformes | Marine tropical Indo-Pacific | Gymnothorax javanicus |
| Giant Moray Eel | Anguilliformes | Marine (Indo-Pacific) | Gymnothorax javanicus |
| Giant Mudskipper | Perciformes | Brackish/Marine | Periophthalmodon schlosseri |
| Giant Muraena | Anguilliformes | Marine (Eastern Atlantic) | Muraena robusta |
| Giant Mussels | Mytilida | Marine (North America) | Mytilus californianus |
| Giant Northern Clam | Veneroida | Marine (North America) | Mercenaria mercenaria |
| Giant Oarfish | Lampriformes | Marine | Regalecus glesne |
| Giant Paddlefish | Acipenseriformes | Freshwater (China) | Psephurus gladius |
| Giant Parore | Perciformes | Marine (New Zealand/Australia) | Girella tricuspidata |
| Giant Perch | Perciformes | Freshwater (Africa) | Lates niloticus |
| Giant Petricola | Veneroida | Marine (North America) | Petricolaria pholadiformis |
| Giant Pide | Perciformes | Marine (Indo-Pacific) | Plectropomus leopardus |
| Giant Pike | Esociformes | Freshwater (Northern Hemisphere) | Esox lucius |
| Giant Piranha | Characiformes | Freshwater (South America) | Serrasalmus rhombeus |
| Giant Plaice | Pleuronectiformes | Marine (North Atlantic) | Hippoglossoides platessoides |
| Giant Plume Saberfish | Lampriformes | Marine (Worldwide) | Lophotus capellei |
| Giant Pond Smelt | Osmeriformes | Freshwater (North America) | Hypomesus transpacificus |
| Giant Prawn | Decapoda | Freshwater/Brackish (Indo-Pacific) | Macrobrachium rosenbergii |
| Giant Queen Conch | Gastropoda | Marine (Western Atlantic) | Strombus gigas |
| Giant Rabbitfish | Perciformes | Marine (Red Sea/Mediterranean) | Siganus rivulatus |
| Giant Ray | Myliobatiformes | Marine (Worldwide) | Manta birostris |
| Giant Red Sea Urchin | Echinodermata | Marine (North Pacific) | Strongylocentrotus franciscanus |
| Giant Remora | Carangiformes | Marine tropical waters worldwide | Echeneis naucrates |
| Giant River Mackerel | Scombriformes | Marine Water | Scomberomorus sinensis |
| Giant River Prawn | Decapoda | Freshwater/Brackish (Indo-Pacific) | Macrobrachium rosenbergii |
| Giant River Stingray | Myliobatiformes | Freshwater (South America) | Potamotrygon brachyura |
| Giant Sablefish | Scorpaeniformes | Marine (North Pacific) | Anoplopoma fimbria |
| Giant Sailfin | Cypriniformes | Freshwater | Mylopharyngodon piceus |
| Giant Salamander | Caudata | Freshwater (Asia) | Andrias davidianus |
| Giant Salmon | Salmoniformes | Freshwater/Marine (North Pacific) | Oncorhynchus tshawytscha |
| Giant Sawfish | Pristiformes | Marine/Brackish/Freshwater (Tropical and Subtropical) | Pristis pristis |
| Giant Scallop | Pectinida | Marine (North Atlantic) | Placopecten magellanicus |
| Giant Schelly | Perciformes | Freshwater (Africa) | Cichlidae |
| Giant Sea Bass | Perciformes | Marine temperate North Pacific | Stereolepis gigas |
| Giant Sea Fan | Gorgonacea | Marine (Western Atlantic) | Gorgonia ventalina |
| Giant Sea Horse | Syngnathiformes | Marine (Eastern Pacific) | Hippocampus ingens |
| Giant Sea Sponges | Demospongiae | Marine (Caribbean) | Xestospongia muta |
| Giant Sea Trout | Perciformes | Marine/Brackish (Western Atlantic) | Cynoscion nebulosus |
| Giant Sea Turtle | Testudines | Marine (Worldwide) | Dermochelys coriacea |
| Giant Seaperch | Perciformes | Marine/Brackish/Freshwater (Indo-Pacific) | Lates calcarifer |
| Giant Serranus | Perciformes | Marine (Eastern Atlantic) | Serranus atricauda |
| Giant Shark | Lamniformes | Marine (Worldwide) | Carcharodon carcharias |
| Giant Sleeper | Gobiiformes | Freshwater and brackish waters in the Americas | Gobiomorus dormitor |
| Giant Sleeper Goby | Gobiiformes | Freshwater/Brackish (Africa) | Eleotris acanthopoma |
| Giant Smooth-hound Shark | Carcharhiniformes | Marine (Eastern Pacific) | Mustelus californicus |
| Giant Snakehead | Anabantiformes | Freshwater in Southeast Asia | Channa micropeltes |
| Giant Sooty Grunter | Perciformes | Freshwater (Australia) | Hephaestus fuliginosus |
| Giant Spangled Emperor | Perciformes | Marine (Indo-Pacific) | Lethrinus nebulosus |
| Giant Spiny Lobster | Decapoda | Marine (Eastern Pacific) | Panulirus interruptus |
| Giant Squid | Teuthida | Marine (Deep Sea) | Architeuthis dux |
| Giant Stargazer | Perciformes | Marine (Eastern Atlantic) | Uranoscopus scaber |
| Giant Stingray | Myliobatiformes | Marine (Indo-Pacific) | Urogymnus asperrimus |
| Giant Stonefish | Scorpaeniformes | Marine (Indo-Pacific) | Synanceia horrida |
| Giant Sturgeon | Acipenseriformes | Marine/Brackish/Freshwater (Europe/Asia) | Huso huso |
| Giant Sucker | Cypriniformes | Freshwater (North America) | Maxostoma carinatum |
| Giant Sunfish | Tetraodontiformes | Marine (Worldwide) | Mola mola |
| Giant Sweetlip | Perciformes | Marine (Indo-Pacific) | Plectorhinchus albovittatus |
| Giant Swellshark | Carcharhiniformes | Marine (Eastern Pacific) | Cephaloscyllium ventriosum |
| Giant Tailor | Perciformes | Marine (Worldwide) | Pomatomus saltatrix |
| Giant Tarpon | Elopiformes | Marine/Brackish/Freshwater (Atlantic) | Megalops atlanticus |
| Giant Tetra | Characiformes | Freshwater (Africa) | Hydrocynus goliath |
| Giant Tiger Prawn | Decapoda | Marine/Brackish (Indo-Pacific) | Penaeus monodon |
| Giant Tilapia | Perciformes | Freshwater (Africa) | Oreochromis niloticus |
| Giant Trevally | Carangiformes | Indo-Pacific marine waters | Caranx ignobilis |
| Giant Triplefin | Perciformes | Marine (Eastern Atlantic) | Tripterygion delaisi |
| Giant Triton | Sorbeoconcha | Marine (Indo-Pacific) | Charonia tritonis |
| Giant Tube Worm | Siboglinidae | Marine (Deep Sea) | Riftia pachyptila |
| Giant Tumbler | Perciformes | Marine (Eastern Atlantic) | Trigla lucerna |
| Giant Turbot | Pleuronectiformes | Marine (Eastern Atlantic) | Psetta maxima |
| Giant Velvetfish | Scorpaeniformes | Marine (Australia) | Gnathanacanthus goetzeei |
| Giant Walleye | Perciformes | Freshwater (North America) | Sander vitreus |
| Giant Wobbegong | Orectolobiformes | Marine (Australia) | Orectolobus halei |
| Giant Wolffish | Perciformes | Marine (North Atlantic) | Anarhichas latifrons |
| Giant Wrasse | Perciformes | Marine (Indo-Pacific) | Cheilinus undulatus |
| Gibberfish | Stomiiformes | Marine | Gibberichthyidae |
| Gibberichthys | Gibberichthyiformes | Deep-sea | Gibberichthys pumilus |
| Gibberichthys latifrons | Gibberichthyiformes | Deep-sea | Gibberichthys latifrons |
| Gibbon | Primate | Terrestrial (Southeast Asia) | Hylobatidae |
| Gibbosa | Gastropoda | Marine (Tropical) | Gibbosa sp. |
| Gibbosula | Gastropoda | Marine (Indo-Pacific) | Gibbosula gibbosa |
| Gibbous Dory | Zeiformes | Marine (Worldwide) | Zenopsis conchifer |
| Gibbous Grunter | Perciformes | Freshwater (Australia) | Hephaestus carbo |
| Gibbous Moray Eel | Anguilliformes | Marine (Indo-Pacific) | Gymnothorax gibbosus |
| Gibbous Parrotfish | Perciformes | Marine (Indo-Pacific) | Scarus gibbus |
| Gibbous Sweepers | Perciformes | Marine (Indo-Pacific) | Pempheridae |
| Gibbsia | Aulopiformes | Deep-sea | Gibbsia muraenolepis |
| Gibbula | Callionymiformes | Marine (Mediterranean) | Gibbula umbilicaris |
| Gibbus | Perciformes | Marine (Indo-Pacific) | Pomadasys gibbosus |
| Gibel Carp | Cypriniformes | Freshwater | Carassius gibelio |
| Gibraltar Bream | Spariformes | Marine | Spondyliosoma cantharus |
| Giesbrechtia | Copepoda | Marine (Deep Sea) | Giesbrechtia princeps |
| Giffard's Catfish | Siluriformes | Freshwater (Africa) | Synodontis giffardi |
| Gigantactis | Lophiiformes | Marine (deep-sea) | Gigantactis |
| Gigantura indica | Aulopiformes | Marine (deep-sea) | Gigantura indica |
| Gigas Sea Bass | Perciformes | Marine (Eastern Pacific) | Stereolepis gigas |
| Gilbert's Cardinalfish | Perciformes | Marine (Indo-Pacific) | Apogon gilberti |
| Gilbert's Drum | Perciformes | Marine (Eastern Atlantic) | Umbrina ronchus |
| Gilbert's Greenling | Scorpaeniformes | Marine (North Pacific) | Hexagrammos stelleri |
| Gilbert's Grunt | Perciformes | Marine (Indo-Pacific) | Pomadasys gilberti |
| Gilbert's Pipefish | Syngnathiformes | Marine (Indo-Pacific) | Corythoichthys gilberti |
| Gilbert's Triggerfish | Tetraodontiformes | Marine (Eastern Pacific) | Balistes polylepis |
| Gilchristella | Clupeiformes | Freshwater/Brackish | Gilchristella aestuaria |
| Gillaroo | Salmoniformes | Freshwater (Ireland) | Salmo trutta |
| Gillbacker | Siluriformes | Freshwater (South America) | Pseudoplatystoma fasciatum |
| Gillblennius | Blenniiformes | Marine (Indo-Pacific) | Gillblennius rubripinnis |
| Gillichthys | Gobiiformes | Marine/Brackish (Eastern Pacific) | Gillichthys mirabilis |
| Gillichthys mirabilis | Gobiiformes | Brackish/Marine | Gillichthys mirabilis |
| Gillichthys seta | Gobiiformes | Brackish (North America) | Gillichthys seta |
| Gills | No specific taxonomic group | Various | Various |
| Gilt-Head Bream | Spariformes | Marine | Sparus aurata |
| Gilthead Bream | Perciformes | Marine (Eastern Atlantic/Mediterranean) | Sparus aurata |
| Gilthead Sea Bream | Spariformes | Coastal Marine | Sparus aurata |
| Ginger Catfish | Siluriformes | Freshwater | Pelteobagrus fulvidraco |
| Ginglymostoma | Orectolobiformes | Marine Water | Ginglymostoma cirratum |
| Giraffe Catfish | Siluriformes | Freshwater | Bagrus bajad |
| Giraffe Razorfish | Syngnathiformes | Marine | Centriscops humerosus |
| Girardinus | Cyprinodontiformes | Freshwater | Girardinus metallicus |
| Girdled Blennies | Blenniiformes | Marine (Indo-Pacific) | Homestius cyprinaceus |
| Girdled Perch | Perciformes | Marine/Brackish/Freshwater (Indo-Pacific) | Terapon jarbua |
| Girdled Perch (Hapalogenys) | Perciformes | Marine (Asia) | Hapalogenys nitens |
| Girdled Wormfish | Perciformes | Marine (Deep Sea) | Güntherus |
| Girdled Wrasse | Perciformes | Marine (Indo-Pacific) | Halichoeres melanurus |
| Girella | Perciformes | Marine temperate Northwest Pacific | Girella punctata |
| Girella Elevata | Perciformes | Marine | Girella elevata |
| Girella Nigricans | Perciformes | Marine | Girella nigricans |
| Girella Tricuspidata | Perciformes | Marine | Girella tricuspidata |
| Girella elevata | Perciformes | Coastal Marine | Girella elevata |
| Girella nigricans | Perciformes | Marine | Girella nigricans |
| Girella punctata | Perciformes | Coastal Marine | Girella punctata |
| Girella zebra | Perciformes | Coastal Marine | Girella zebra |
| Gizzard Shad | Clupeiformes | Freshwater and brackish water in North America | Dorosoma cepedianum |
| Gizzard Shad (African) | Clupeiformes | Freshwater | Dorosoma cepedianum (African variant) |
| Gizzard Shad (Brazilian) | Clupeiformes | Freshwater (South America) | Dorosoma cepedianum |
| Gizzard Shad (Mexican) | Clupeiformes | Freshwater (North America) | Dorosoma petenense |
| Gizzard Shad (Tanzanian) | Clupeiformes | Freshwater (Africa) | Limnothrissa miodon |
| Gizzard Shads | Clupeiformes | Freshwater/Brackish (Americas) | Dorosoma |
| Glacier Lanternfish | Myctophiformes | Deep marine waters worldwide | Benthosema glaciale |
| Gladiator Grouper | Perciformes | Marine | Epinephelus lanceolatus |
| Gladiatus | Perciformes | Marine (Deep Sea) | Gladiatus splendidus |
| Gladioloeuf | Perciformes | Marine | Gladioloeuf sp. |
| Glandulocauda melanogenys | Characiformes | Freshwater | Glandulocauda melanogenys |
| Glass Catfish | Siluriformes | Freshwater in Southeast Asia | Kryptopterus vitreolus |
| Glass Gourami | Anabantiformes | Freshwater (Borneo) | Parosphromenus alleni |
| Glass Knifefish | Gymnotiformes | Freshwater in South America | Eigenmannia virescens |
| Glass Perchlet | Perciformes | Freshwater/Brackish | Ambassis nalua |
| Glasseye Snapper | Perciformes | Marine | Priacanthus cruentatus |
| Glassfish | Perciformes | Freshwater in Asia | Chanda nama |
| Glassfish (Chanda) | Perciformes | Freshwater/Brackish | Family Ambassidae |
| Glassfish (Indian) | Perciformes | Freshwater | Parambassis ranga |
| Glastronema | Perciformes | Freshwater | Glastronema |
| Glaucosoma | Perciformes | Marine | Glaucosomatidae |
| Globefish | Tetraodontiformes | Freshwater/Brackish (Asia) | Tetraodon fluviatilis |
| Glofish | Cypriniformes | Freshwater in Asia | Danio rerio |
| Glossamia | Perciformes | Freshwater | Glossamia aprion |
| Glossamia aprion | Perciformes | Freshwater/Brackish | Glossamia aprion |
| Glossamia narindica | Perciformes | Freshwater (Australia) | Glossamia narindica |
| Glossocephalus | Aulopiformes | Deep-sea | Glossocephalus milneri |
| Glossodus | Gonorynchiformes | Marine (Fossil) | Glossodus antherinus |
| Glossogobius | Gobiiformes | Freshwater/Brackish | Glossogobius giurus |
| Glossolepis | Atheriniformes | Freshwater (New Guinea) | Glossolepis incisus |
| Glossolepis Incisus | Atheriniformes | Freshwater (Red Rainbowfish) | Glossolepis incisus |
| Glyphis | Carcharhiniformes | Freshwater/Brackish (River Sharks) | Glyphis gangeticus |
| Glyphis gangeticus | Carcharhiniformes | Freshwater/Brackish | Glyphis gangeticus |
| Glyptosternon | Siluriformes | Freshwater | Glyptosternon reticulatum |
| Glyptosternum | Siluriformes | Freshwater | Glyptosternum reticulatum |
| Glyptothorax | Siluriformes | Freshwater | Glyptothorax trilineatus |
| Gnatfish | Cyprinodontiformes | Freshwater | Gambusia affinis |
| Gnathagnus | Stomiiformes | Deep-sea | Gnathagnus cribratus |
| Gnathagnus cribratus | Perciformes | Marine | Gnathagnus cribratus |
| Gnathanacanthus | Scorpaeniformes | Marine Water | Gnathanacanthus goetzeei |
| Gnathochromis | Cichliformes | Freshwater | Gnathochromis permaxillaris |
| Gnatholepis anjeriana | Gobiiformes | Marine | Gnatholepis anjeriana |
| Gnathophis | Anguilliformes | Marine | Gnathophis mystax |
| Gnathophis cinctus | Anguilliformes | Marine | Gnathophis cinctus |
| Gnathophis elongatus | Anguilliformes | Marine | Gnathophis elongatus |
| Gnathophis heterognathos | Anguilliformes | Marine | Gnathophis heterognathos |
| Gnathophis profundus | Anguilliformes | Marine | Gnathophis profundus |
| Gnathostomus | Gnathostomata | Fossil | Gnathostomus primordius |
| Goatfish | Perciformes | Marine tropical and subtropical waters | Mullidae |
| Gobies | Gobiiformes | Marine/Freshwater/Brackish | Gobiidae spp. |
| Gobiesox | Gobiesociformes | Marine/Freshwater | Gobiesocidae |
| Gobiesox barbatulus | Gobiesociformes | Coastal Marine | Gobiesox barbatulus |
| Gobiesox fluviatilis | Gobiesociformes | Freshwater (Central America) | Gobiesox fluviatilis |
| Gobiesox maeandricus | Gobiesociformes | Coastal Marine | Gobiesox maeandricus |
| Gobiesox strumosus | Gobiesociformes | Marine/Brackish | Gobiesox strumosus |
| Gobio | Cypriniformes | Freshwater (Europe) | Gobio gobio |
| Gobio albipinnatus | Cypriniformes | Freshwater (Europe) | Gobio albipinnatus |
| Gobio gobio | Cypriniformes | Freshwater | Gobio gobio |
| Gobio obtusirostris | Cypriniformes | Freshwater (Europe) | Gobio obtusirostris |
| Gobiodon | Gobiiformes | Marine Water | Gobiodon okinawae |
| Gobiodon citrinus | Gobiiformes | Marine | Gobiodon citrinus |
| Gobiodon histrio | Gobiiformes | Coral Reef | Gobiodon histrio |
| Gobioidei | Gobiiformes | Freshwater and marine | Gobioidei sp. |
| Gobioides | Gobiiformes | Marine Water/Brackish | Gobioides broussonnetii |
| Gobioides broussonnetii | Gobiiformes | Marine/Brackish/Freshwater | Gobioides broussonnetii |
| Gobiomorus | Gobiiformes | Freshwater/Brackish | Gobiomorus dormitor |
| Gobionellus | Gobiiformes | Brackish/Marine | Gobionellus oceanicus |
| Gobiopsis | Gobiiformes | Marine Water | Gobiopsis macrostoma |
| Gobiopsis bravoi | Gobiiformes | Marine | Gobiopsis bravoi |
| Gobiopterus | Gobiiformes | Brackish/Freshwater (Asia) | Gobiopterus chuno |
| Gobiosoma | Gobiiformes | Marine Water | Gobiosoma newmani |
| Gobiosoma dilema | Gobiiformes | Coastal Marine | Gobiosoma dilema |
| Gobiosoma gobio | Gobiiformes | Coastal Marine | Gobiosoma gobio |
| Gobius | Gobiiformes | Marine Water | Gobius niger |
| Gobius cobitis | Gobiiformes | Coastal Marine | Gobius cobitis |
| Gobius geniporus | Gobiiformes | Coastal Marine | Gobius geniporus |
| Gobius niger | Gobiiformes | Marine/Brackish | Gobius niger |
| Gobius pagenellus | Gobiiformes | Coastal Marine | Gobius pagenellus |
| Gobiusculus | Gobiiformes | Marine Water | Gobiusculus flavescens |
| Goblin Shark | Lamniformes | Deep marine waters worldwide | Mitsukurina owstoni |
| Goblinfish | Scorpaeniformes | Marine | Neocentropogon profundus |
| Goby | Gobiiformes | Marine and freshwater habitats worldwide | Gobiidae |
| Godfather Lampray | Petromyzontiformes | Anadromous | Petromyzon marinus |
| Godzilla Goby | Perciformes | Marine | Obliquogobius megalops |
| Golden Angelfish | Perciformes | Marine | Apolemichthys xanthopunctatus |
| Golden Barb | Cypriniformes | Freshwater | Puntius gelius |
| Golden Bichir | Polypteriformes | Freshwater | Polypterus ornatipinnis |
| Golden Butterflyfish | Perciformes | Marine | Chaetodon semilarvatus |
| Golden Carp | Cypriniformes | Freshwater | Carassius auratus |
| Golden Clownfish | Perciformes | Marine | Amphiprion aurantia |
| Golden Darter | Perciformes | Freshwater | Etheostoma aquali |
| Golden Dorado | Characiformes | Freshwater in South America | Salminus brasiliensis |
| Golden Dottyback | Perciformes | Marine | Pseudochromis fuscus |
| Golden Dwarf Barb | Cypriniformes | Freshwater in Bangladesh and India | Pethia gelius |
| Golden Dwarf Moray | Anguilliformes | Marine | Gymnothorax melatremus |
| Golden Eel | Anguilliformes | Marine | Muraena aurea |
| Golden Emperor | Perciformes | Marine | Lethrinus erythracanthus |
| Golden Emperor Snapper | Lutjaniformes | Marine tropical Indo-Pacific | Lutjanus sebae |
| Golden Flying Fish | Beloniformes | Marine | Cypselurus poecilopterus |
| Golden Gar | Beloniformes | Freshwater | Xenentodon cancila |
| Golden Goby | Perciformes | Marine | Gobius auratus |
| Golden Gourami | Anabantiformes | Freshwater | Trichopodus trichopterus |
| Golden Greyling | Salmoniformes | Freshwater | Thymallus arcticus |
| Golden Guppy | Cyprinodontiformes | Freshwater | Poecilia reticulata |
| Golden Killifish | Cyprinodontiformes | Freshwater in Africa | Nothobranchius furzeri |
| Golden Loach | Cypriniformes | Freshwater | Parabotia fasciata |
| Golden Mahseer | Cypriniformes | Freshwater | Tor putitora |
| Golden Mahseer (Tor putitora) | Cypriniformes | Freshwater | Tor putitora |
| Golden Needlefish | Beloniformes | Marine | Platybelone argalus |
| Golden Orfe | Cypriniformes | Freshwater (Europe) | Leuciscus idus |
| Golden Pencilfish | Characiformes | Freshwater in South America | Nannostomus beckfordi |
| Golden Perch | Perciformes | Freshwater | Macquaria ambigua |
| Golden Pipefish | Syngnathiformes | Marine | Corythoichthys schultzi |
| Golden Pufferfish | Tetraodontiformes | Freshwater | Tetraodon mbu |
| Golden Rabbitfish | Perciformes | Marine | Siganus fulvoguttatus |
| Golden Redhorse | Cypriniformes | Freshwater | Moxostoma erythrurum |
| Golden Rivulus | Cyprinodontiformes | Freshwater | Rivulus hartii |
| Golden Sailfin Molly | Poeciliiformes | Freshwater in Central America | Poecilia velifera |
| Golden Sarcastic Fringehead | Perciformes | Marine | Neoclinus blanchardi |
| Golden Shiner | Cypriniformes | Freshwater in North America | Notemigonus crysoleucas |
| Golden Snapper | Perciformes | Marine/Brackish | Lutjanus johnii |
| Golden Spotfin Hogfish | Perciformes | Marine | Bodianus opercularis |
| Golden Spotted Eel | Anguilliformes | Marine | Muraena argus |
| Golden Tilefish | Perciformes | Marine | Lopholatilus chamaeleonticeps |
| Golden Topminnow | Cyprinodontiformes | Freshwater | Fundulus chrysotus |
| Golden Trevally | Perciformes | Marine | Gnathanodon speciosus |
| Golden Trout | Salmoniformes | Freshwater in North America | Oncorhynchus aguabonita |
| Goldenline Barbel | Cypriniformes | Freshwater | Barbus barbus |
| Goldeye | Hiodontiformes | Freshwater in North America | Hiodon alosoides |
| Goldfish | Cypriniformes | Freshwater in East Asia | Carassius auratus |
| Goldline Snapper | Perciformes | Coastal Marine | Lutjanus fulvus |
| Goldring Tang | Acanthuriformes | Marine Water | Ctenochaetus strigosus |
| Goldstripe Sardinella | Clupeiformes | Marine Water | Sardinella gibbosa |
| Golfer's Pipefish | Syngnathiformes | Marine | Solegnathus hardwickii |
| Goliath Grouper | Perciformes | Marine (Tropical Reefs) | Epinephelus itajara |
| Goliath Tigerfish | Characiformes | Freshwater in Africa | Hydrocynus goliath |
| Gomphosus | Perciformes | Coral Reef | Gomphosus varius |
| Gomphosus Varius | Perciformes | Marine (Bird Wrasse) | Gomphosus varius |
| Gomphosus caeruleus | Perciformes | Coral Reef | Gomphosus caeruleus |
| Gomphosus tricolor | Perciformes | Coral Reef | Gomphosus tricolor |
| Gomphosus varius | Perciformes | Marine | Gomphosus varius |
| Gonadichthys | Syngnathiformes | Marine (Australia) | Gonadichthys cribratus |
| Gongol | Siluriformes | Freshwater (Catfish) | Pimelodella cristata |
| Gonichthys | Myctophiformes | Marine Water | Gonichthys coccoi |
| Goniistius | Perciformes | Marine (Indo-Pacific) | Goniistius zonatus |
| Gonorynchus | Gonorynchiformes | Marine | Gonorynchus gonorynchus |
| Gonorynchus gonorynchus | Gonorynchiformes | Marine | Gonorynchus gonorynchus |
| Gonostoma | Stomiiformes | Marine | Gonostomatidae |
| Gonostoma Gracile | Stomiiformes | Marine | Gonostoma gracile |
| Gonostoma denudatum | Stomiiformes | Marine (mesopelagic) | Gonostoma denudatum |
| Gonostoma elongatum | Stomiiformes | Deep-sea | Gonostoma elongatum |
| Gonyaulax | Dinoflagellata | Marine (Planktonic) | Gonyaulax polyedra |
| Goodea | Cyprinodontiformes | Freshwater | Goodea gracilis |
| Goodedia | Atheriniformes | Freshwater (Australia) | Goodedia pescotti |
| Goodeid | Cyprinodontiformes | Freshwater | Goodeidae |
| Goodyera | Cyprinodontiformes | Freshwater | Goodea atripinnis |
| Goonch | Siluriformes | Freshwater | Bagarius yarrelli |
| Goonch Catfish | Siluriformes | Freshwater | Bagarius yarrelli |
| Goongarr | Perciformes | Freshwater (Bream) | Nematalosa erebi |
| Goongarrie | Perciformes | Freshwater (another name for Goongarr) | Nematalosa erebi |
| Goosefish | Lophiiformes | Marine | Lophius americanus |
| Gopher Rockfish | Perciformes | Marine | Sebastes carnatus |
| Gorgonian Bream | Perciformes | Marine | Argyrops spinifer |
| Gorgonian Prawn-goby | Gobiiformes | Marine Water | Tenacigobius yongei |
| Gosa | Clupeiformes | Marine/Freshwater | Tenualosa ilisha |
| Gourami | Anabantiformes | Freshwater | Osphronemidae |
| Grabnutz | Anguilliformes | Marine | Gymnothorax hexaodon |
| Graceful Threadfin Bream | Perciformes | Marine Water | Nemipterus celebicus |
| Gracila | Perciformes | Marine (Grouper) | Gracila albomarginata |
| Gracile Pipefish | Syngnathiformes | Marine | Siokunichthys nigrolineatus |
| Gracile Razorfisn | Perciformes | Marine | Xyrichtys martinicensis |
| Gracilicutes | Carcharhiniformes | Marine (Western Atlantic) | Carcharhinus isodon |
| Grallator | Perciformes | Fossil | Grallator sp. |
| Grallophis | Ophidiiformes | Marine (deep-sea) | Grallophis |
| Gramma | Perciformes | Marine Water | Gramma loreto |
| Gramma loreto | Perciformes | Marine | Gramma loreto |
| Gramma melacara | Perciformes | Coral Reef | Gramma melacara |
| Grammatobothus | Pleuronectiformes | Marine Water | Grammatobothus polyophthalmus |
| Grammatonotus | Perciformes | Deep-sea | Grammatonotus macrophthalmus |
| Grammatonotus laysanus | Perciformes | Deep-sea | Grammatonotus laysanus |
| Grammatorcynus | Scombriformes | Marine (Indo-Pacific) | Grammatorcynus bilineatus |
| Grammatotria | Cichliformes | Freshwater | Grammatotria leptodonta |
| Grammicolepis | Zeiformes | Deepwater marine | Grammicolepis brachiusculus |
| Grammistes | Perciformes | Coral Reef | Grammistes sexlineatus |
| Grammistidae | Perciformes | Marine (Indo-Pacific) | Grammistes sexlineatus |
| Grammonus | Ophidiiformes | Marine (Mediterranean) | Grammonus ater |
| Grampus | Odontoceti | Marine (Pelagic) | Grampus griseus |
| Grandfather Mullet | Mugiliformes | Brackish/Marine | Mugil cephalus |
| Grandfather Sea Snake | Elapidae | Marine (Indo-Pacific) | Hydrophis viperinus |
| Grape-eye Seabream | Spariformes | Marine (Mediterranean) | Boops boops |
| Grass Carp | Cypriniformes | Freshwater in East Asia | Ctenopharyngodon idella |
| Grass Flounder | Pleuronectiformes | Marine | Pleuronectes quadrituberculatus |
| Grass Pickerel | Esociformes | Freshwater | Esox americanus vermiculatus |
| Grass Prawn Goby | Gobiiformes | Marine tropical Indo-Pacific | Ctenogobiops tangaroai |
| Grass Snapper | Perciformes | Marine (Western Atlantic) | Lutjanus griseus |
| Grass goby | Gobiiformes | Brackish (Europe) | Zosterisessor ophiocephalus |
| Grasshopper Pipefish | Syngnathiformes | Marine (Indo-Pacific) | Hippichthys heptagonus |
| Gray Rockfish | Scorpaeniformes | Marine temperate North Pacific | Sebastes glaucus |
| Gray Snapper | Lutjaniformes | Marine and brackish waters in the Western Atlantic | Lutjanus griseus |
| Gray Triggerfish | Tetraodontiformes | Marine temperate and subtropical Atlantic | Balistes capriscus |
| Grayling | Salmoniformes | Freshwater in Eurasia | Thymallus thymallus |
| Graysby | Perciformes | Marine | Cephalopholis cruentata |
| Grazil | Scombriformes | Marine (Oilfish) | Ruvettus pretiosus |
| Grease Grouper | Perciformes | Marine | Epinephelus tauvina |
| Great Barracuda | Scombriformes | Coastal Marine | Sphyraena barracuda |
| Great White Shark | Carcharhiniformes | Oceanic | Carcharodon carcharias |
| Greater Amberjack | Perciformes | Marine | Seriola dumerili |
| Greater Argus | Sciaenidae | Marine (Spot Croaker) | Leiostomus xanthurus |
| Greater Dragonfish | Perciformes | Marine | Trachinus draco |
| Greater Electric Ray | Torpediniformes | Marine | Torpedo nobiliana |
| Greater Frogfish | Lophiiformes | Marine | Antennarius commerson |
| Greater Hammerhead | Carcharhiniformes | Marine (Great Hammerhead Shark) | Sphyrna mokarran |
| Greater Lizardfish | Teleostei | Marine | Saurida tumbil |
| Greater Pipefish | Syngnathiformes | Marine (Atlantic) | Syngnathus acus |
| Greater Sand Eel | Aulopiformes | Coastal Marine | Hyperoplus lanceolatus |
| Greater Scaup | Anseriformes | Freshwater and marine (Migratory) | Aythya marila |
| Greater Seahorse | Syngnathiformes | Marine | Hippocampus kelloggi |
| Greater Soapfish | Perciformes | Marine | Diploprion bifasciatum |
| Greater Weever | Perciformes | Marine | Trachinus draco |
| Green Anemonefish | Perciformes | Coral Reef | Amphiprion akindynos |
| Green Bass | Perciformes | Freshwater | Micropterus salmoides (Green variant) |
| Green Blenny | Blenniiformes | Marine | Blennius ocellaris |
| Green Chromide | Perciformes | Brackish/Freshwater | Etroplus suratensis |
| Green Chromis | Perciformes | Marine tropical Indo-Pacific | Chromis viridis |
| Green Comber | Perciformes | Marine | Serranus cabrilla |
| Green Dartfish | Gobiiformes | Marine tropical Indo-Pacific | Ptereleotris microlepis |
| Green Devil Fish | Perciformes | Marine | Paraplesiops meleagris |
| Green Dragon (Syngnathus acus) | Syngnathiformes | Marine (Pipefish) | Syngnathus acus |
| Green Eel | Anguilliformes | Marine | Gymnothorax prasinus |
| Green Fingerfish | Perciformes | Brackish/Marine | Monodactylus argenteus |
| Green Flounder | Pleuronectiformes | Marine | Rhombosolea tapirina |
| Green Garden Eel | Anguilliformes | Marine | Heteroconger hassi |
| Green Garfish | Beloniformes | Marine/Brackish | Strongylura marina |
| Green Gobbler | Perciformes | Marine | Gobiodon atrangulatus |
| Green Goblin Shark | Lamniformes | Deepwater marine | Mitsukurina owstoni |
| Green Gravy Fish | Perciformes | Freshwater/Brackish | Eleotris pisonis |
| Green Humphead Parrotfish | Perciformes | Marine | Bolbometopon muricatum |
| Green Jobfish | Perciformes | Marine | Aprion virescens |
| Green Moray | Anguilliformes | Marine | Gymnothorax funebris |
| Green Moray Eel | Anguilliformes | Marine Water | Gymnothorax funebris |
| Green Muraena | Anguilliformes | Marine (another name for Green Moray) | Gymnothorax funebris |
| Green Napoleon Wrasse | Perciformes | Marine (Humphead Wrasse) | Cheilinus undulatus |
| Green Neon Tetra | Characiformes | Freshwater | Paracheirodon simulans |
| Green Pike | Esociformes | Freshwater (Northern Pike) | Esox lucius |
| Green Pike Conger | Anguilliformes | Marine | Conger oceanicus |
| Green Piranha | Characiformes | Freshwater | Serrasalmus rhombeus |
| Green Puff | Tetraodontiformes | Freshwater | Tetraodon leiurus |
| Green Pufferfish | Tetraodontiformes | Brackish in Southeast Asia | Tetraodon nigroviridis |
| Green Razorfish | Perciformes | Marine | Xyrichtys novacula |
| Green Sawfish | Pristiformes | Marine (Indo-Pacific) | Pristis zijsron |
| Green Snapper | Perciformes | Marine (Indo-Pacific) | Lutjanus semicinctus |
| Green Spotted Datz | Perciformes | Freshwater and brackish in Southeast Asia | Datz microlepis |
| Green Spotted Puffer | Tetraodontiformes | Brackish and freshwater in Southeast Asia | Dichotomyctere fluviatilis |
| Green Sturgeon | Acipenseriformes | Marine/Freshwater | Acipenser medirostris |
| Green Sunfish | Perciformes | Freshwater in North America | Lepomis cyanellus |
| Green Swordtail | Cyprinodontiformes | Freshwater (Mexico) | Xiphophorus hellerii |
| Green Terror | Cichliformes | Freshwater in South America | Andinoacara rivulatus |
| Green Tilefish | Perciformes | Marine (South Atlantic) | Lopholatilus villarii |
| Green Wrasse | Perciformes | Marine | Labrus viridis |
| Greenback Cutthroat Trout | Salmoniformes | Freshwater | Oncorhynchus clarkii stomias |
| Greenback Flounder | Pleuronectiformes | Coastal Marine | Rhombosolea tapirina |
| Greenback Grayling | Osmeriformes | Freshwater (Australia) | Prototroctes maraena |
| Greenband Parrotfish | Perciformes | Coral Reef | Sparisoma atomarium |
| Greenland Cod | Gadiformes | Marine Water | Gadus ogac |
| Greenland Halibut | Pleuronectiformes | Deep marine waters of the North Atlantic | Reinhardtius hippoglossoides |
| Greenland Shark | Squaliformes | Arctic and North Atlantic marine waters | Somniosus microcephalus |
| Greenling | Perciformes | Marine | Hexagrammos decagrammus |
| Greenpeace Skate | Rajiformes | Deep-sea | Dipturus gudgeri |
| Grellis | Perciformes | Marine Water | Girella tricuspidata |
| Grenadier | Gadiformes | Marine | Macrouridae |
| Grey Angelfish | Perciformes | Marine (Western Atlantic) | Pomacanthus arcuatus |
| Grey Anglerfish | Lophiiformes | Deep-sea | Lophius piscatorius |
| Grey Eel | Anguilliformes | Freshwater/Marine (European Eel) | Anguilla anguilla |
| Grey Gurnard | Scorpaeniformes | Marine | Eutrigla gurnardus |
| Grey Hamlet | Perciformes | Marine | Hypoplectrus unicolor |
| Grey Lady | Perciformes | Marine (Bluefish) | Pomatomus saltatrix |
| Grey Mullets | Mugiliformes | Marine/Brackish/Freshwater | Mugilidae |
| Grey Nurse Shark | Lamniformes | Marine | Carcharias taurus |
| Grey Reef Shark | Carcharhiniformes | Marine | Carcharhinus amblyrhynchos |
| Grey Skate | Rajiformes | Marine (Northeast Atlantic) | Dipturus batis |
| Grey Triggerfish | Tetraodontiformes | Marine | Balistes capriscus |
| Grey Triggerfish (Balistes) | Tetraodontiformes | Coastal Marine | Balistes capriscus |
| Griffis' Angelfish | Perciformes | Marine (Pacific) | Apolemichthys griffisi |
| Grilse | Salmoniformes | Freshwater/Marine (Young Salmon) | Salmo salar |
| Grim Reaper Anglerfish | Lophiiformes | Marine Water | Melanocetus johnsonii |
| Grimaldichthys | Ophidiiformes | Deepwater marine | Grimaldichthys profundissimus |
| Grimpeutes | No specific taxonomic group | Marine | Grimpeutes |
| Grindal Worm | Cyprinodontiformes | Freshwater (Aquaculture) | Enchytraeus buchholzi |
| Gringo | Perciformes | Marine | Haemulon flavolineatum |
| Grinning Tonguefish | Pleuronectiformes | Marine Water | Cynoglossus puncticeps |
| Grissle | Salmoniformes | Freshwater/Marine (Young Salmon) | Salmo salar |
| Grizzle Reef Shark | Carcharhiniformes | Coastal Marine | Carcharhinus plumbeus |
| Grobby | Perciformes | Freshwater/Brackish | Eleotris fusca |
| Groby | Perciformes | Freshwater/Brackish | Eleotris fusca |
| Groper | Perciformes | Marine (Giant Grouper) | Epinephelus lanceolatus |
| Ground Shark | Carcharhiniformes | Marine | Carcharhinidae |
| Ground Shark (various) | Carcharhiniformes | Marine Water | Carcharhinus spp. |
| Grouper | Perciformes | Marine tropical and subtropical waters | Epinephelinae |
| Grundle | Cypriniformes | Freshwater | Gobio gobio |
| Grunion | Atheriniformes | Marine temperate waters of California | Leuresthes tenuis |
| Grunt | Perciformes | Marine tropical and subtropical waters | Haemulidae |
| Grunt Sculpin | Scorpaeniformes | Marine Water | Rhamphocottus richardsonii |
| Grunter | Perciformes | Marine/Brackish/Freshwater | Pomadasyidae |
| Grunter (various) | Perciformes | Marine Water/Brackish | Pomadasys spp. |
| Guadalupe Bass | Perciformes | Freshwater | Micropterus treculii |
| Guavina | Perciformes | Freshwater/Brackish | Guavina guavina |
| Gudgeon | Cypriniformes | Freshwater in Eurasia | Gobio gobio |
| Gudgeon (Australian) | Perciformes | Freshwater | Gobiomorphus australis |
| Gudgeon (Marine) | Perciformes | Marine | Gobiidae (Marine species) |
| Guentherus | Aulopiformes | Bathypelagic | Guentherus altivelis |
| Guentherus tener | Aulopiformes | Bathypelagic | Guentherus tener |
| Guiana Humbug | Perciformes | Marine (Western Atlantic) | Chaetodon ocellatus |
| Guinea Fowl Puffer | Tetraodontiformes | Marine (Indo-Pacific) | Arothron meleagris |
| Guineafowl Puffer | Tetraodontiformes | Marine tropical Indo-Pacific | Arothron meleagris |
| Guitarfish | Rajiformes | Marine tropical and temperate waters | Rhinobatidae |
| Guitarfish (Rhina) | Rhinopristiformes | Marine (Bowmouth Guitarfish) | Rhina ancylostoma |
| Guitarfish (Rhynchobatus) | Rhinopristiformes | Marine (Indo-Pacific) | Rhynchobatus djiddensis |
| Gulang | Clupeiformes | Marine (Pilchard) | Sardina pilchardus |
| Gulper Eel | Saccopharyngiformes | Deep marine waters worldwide | Eurypharynx pelecanoides |
| Gulper Shark | Squaliformes | Marine | Centrophorus granulosus |
| Gummidge | Pleuronectiformes | Marine (Fan-bellied Leatherjacket) | Monacanthus chinensis |
| Gummy Shark | Carcharhiniformes | Marine Water | Mustelus antarcticus |
| Gunnel | Perciformes | Marine | Pholidae |
| Gunnel (various) | Perciformes | Marine Water | Pholis spp. |
| Gunnell | Perciformes | Marine | Pholidae |
| Gunnels | Perciformes | Marine | Pholidae sp. |
| Guppy | Poeciliiformes | Freshwater in South America | Poecilia reticulata |
| Gurnard | Perciformes | Marine temperate and tropical waters | Triglidae |
| Gurnard (various) | Scorpaeniformes | Marine Water | Chelidonichthys spp. |
| Gurnard Perch | Perciformes | Marine | Neosebastes scorpaenoides |
| Guro | Scombriformes | Marine (Snake Mackerel) | Gempylus serpens |
| Gymnallabes typus | Siluriformes | Freshwater | Gymnallabes typus |
| Gymnapogon | Gobiiformes | Marine | Gymnapogon japonicus |
| Gymnarchus | Osteoglossiformes | Freshwater (Africa) | Gymnarchus niloticus |
| Gymnelis | Perciformes | Marine (Eelpout) | Gymnelus retrodorsalis |
| Gymnelis viridis | Perciformes | Marine | Gymnelis viridis |
| Gymnocanthus tricuspis | Scorpaeniformes | Marine | Gymnocanthus tricuspis |
| Gymnocephalus | Perciformes | Freshwater/Brackish | Gymnocephalus cernua |
| Gymnocranius | Perciformes | Coastal Marine | Gymnocranius grandoculis |
| Gymnodraco | Perciformes | Marine Water | Gymnodraco acuticeps |
| Gymnodraco acuticeps | Perciformes | Marine (Antarctic) | Gymnodraco acuticeps |
| Gymnogeophagus balzanii | Cichliformes | Freshwater | Gymnogeophagus balzanii |
| Gymnomuraena zebra | Anguilliformes | Marine | Gymnomuraena zebra |
| Gymnosarda unicolor | Scombriformes | Marine | Gymnosarda unicolor |
| Gymnoscopelus nicholsi | Myctophiformes | Marine (deep-sea) | Gymnoscopelus nicholsi |
| Gymnothorax | Anguilliformes | Marine | Gymnothorax funebris |
| Gymnothorax Castaneus | Anguilliformes | Marine (Panamic Green Moray) | Gymnothorax castaneus |
| Gymnothorax Favagineus | Anguilliformes | Marine (Honeycomb Moray) | Gymnothorax favagineus |
| Gymnothorax Undulatus | Anguilliformes | Marine (Undulated Moray) | Gymnothorax undulatus |
| Gymnothorax favagineus | Anguilliformes | Marine | Gymnothorax favagineus |
| Gymnothorax mordax | Anguilliformes | Marine | Gymnothorax mordax |
| Gymnotus | Gymnotiformes | Freshwater | Gymnotus carapo |
| Gymnura | Myliobatiformes | Marine (Butterfly Ray) | Gymnura micrura |
| Gymnura Japonica | Myliobatiformes | Marine (Japanese Butterfly Ray) | Gymnura japonica |
| Gymnura altavela | Myliobatiformes | Marine | Gymnura altavela |
| Gynacantha | Atheriniformes | Freshwater | Gynacantha erektius |
| Gypsy Fish | Perciformes | Marine (Painted Comber) | Serranus scriba |
| Gyrodinium | Dinoflagellates | Marine Water | Gyrodinium spirale |