Allfishes
Fourspine stickleback
Apeltes quadracus
The fourspine stickleback possesses an elongated, fusiform body lacking scales. Typically, it exhibits four or five …
Marine
Guide to marine fish with sorting and selection options by family, feeding method, size, and other important characteristics.
Way of eating
Habitat
Threat to people
Conservation status
Genus
- Epinephelus 22
- Carcharhinus 17
- Acanthurus 16
- Lutjanus 13
- Chaetodon 12
- Caranx 11
- Sebastes 11
- Gymnothorax 10
- Sphyraena 10
- Cephalopholis 8
- Hippocampus 8
- Oncorhynchus 7
- Sardinella 7
- Scomberomorus 7
- Scorpaena 7
- Thunnus 7
- Trachurus 7
- Amphiprion 6
- Arius 6
- Alosa 5
- Anarhichas 5
- Careproctus 5
- Coregonus 5
- Cynoscion 5
- Limanda 5
- Meiacanthus 5
- Myoxocephalus 5
- Nemipterus 5
- Pomacanthus 5
- Pterois 5
- Scarus 5
- Scorpaenopsis 5
- Sphyrna 5
- Tetrapturus 5
- Tylosurus 5
- Alopias 4
- Anguilla 4
- Bothus 4
- Channichthys 4
- Chiloscyllium 4
- Coryphaena 4
- Gadus 4
- Haemulon 4
- Liparis 4
- Merluccius 4
- Mobula 4
- Orectolobus 4
- Parupeneus 4
- Plectorhinchus 4
- Pogonophryne 4
- Scomber 4
- Seriola 4
- Trachinotus 4
- Uranoscopus 4
- Acanthopagrus 3
- Alepes 3
- Amblyglyphidodon 3
- Ammodytes 3
- Anodontostoma 3
- Antennarius 3
- Bathytoshia 3
- Carangoides 3
- Chrysiptera 3
- Clupea 3
- Conger 3
- Diodon 3
- Engraulis 3
- Euthynnus 3
- Gymnura 3
- Hippoglossoides 3
- Huso 3
- Istiophorus 3
- Lagenorhynchus 3
- Mugil 3
- Mustelus 3
- Mycteroperca 3
- Naso 3
- Ostracion 3
- Paralichthys 3
- Plicofollis 3
- Pomacentrus 3
- Pristis 3
- Pseudanthias 3
- Pseudotrematomus 3
- Ptereleotris 3
- Rhinobatos 3
- Rhizoprionodon 3
- Salvelinus 3
- Siganus 3
- Solenostomus 3
- Sousa 3
- Torpedo 3
- Zebrasoma 3
- Abudefduf 2
- Acipenser 2
- Aetobatus 2
- Aetomylaeus 2
- Albula 2
- Amblyraja 2
- Archosargus 2
- Arothron 2
- Artediellus 2
- Aspidophoroides 2
- Atelomycterus 2
- Atherinomorus 2
- Balistes 2
- Balistoides 2
- Brama 2
- Brevoortia 2
- Caesio 2
- Canthigaster 2
- Carcharias 2
- Champsocephalus 2
- Cheilinus 2
- Cheilopogon 2
- Chelon 2
- Chirocentrus 2
- Chlorurus 2
- Cirrhilabrus 2
- Citharichthys 2
- Corythoichthys 2
- Cyclopterus 2
- Dactyloptena 2
- Decapterus 2
- Dissostichus 2
- Dunckerocampus 2
- Dussumieria 2
- Echidna 2
- Ecsenius 2
- Elacatinus 2
- Eleginus 2
- Enchelycore 2
- Eumicrotremus 2
- Exocoetus 2
- Galeorhinus 2
- Gigantactis 2
- Globicephala 2
- Halichoeres 2
- Hemiramphus 2
- Hemiscyllium 2
- Heterodontus 2
- Hexagrammos 2
- Himantura 2
- Hippoglossus 2
- Holocentrus 2
- Iniistius 2
- Labroides 2
- Lamna 2
- Larimichthys 2
- Lates 2
- Latimeria 2
- Lophius 2
- Lumpenus 2
- Lycodes 2
- Macrourus 2
- Makaira 2
- Melanocetus 2
- Microgadus 2
- Micromesistius 2
- Molva 2
- Monocentris 2
- Morone 2
- Negaprion 2
- Nematalosa 2
- Neobathyclupea 2
- Neopomacentrus 2
- Osmerus 2
- Ostorhinchus 2
- Pagothenia 2
- Paracanthurus 2
- Parascyllium 2
- Pateobatis 2
- Periophthalmus 2
- Photoblepharon 2
- Planiliza 2
- Platichthys 2
- Pleuronectes 2
- Pollachius 2
- Priacanthus 2
- Rastrelliger 2
- Rhinecanthus 2
- Rhodichthys 2
- Saccopharynx 2
- Salmo 2
- Sardinops 2
- Saurida 2
- Scophthalmus 2
- Scorpaenodes 2
- Semicossyphus 2
- Squatina 2
- Stenella 2
- Stenotomus 2
- Syngnathus 2
- Takifugu 2
- Triakis 2
- Triglops 2
- Trimma 2
- Tursiops 2
- Ulua 2
- Umbrina 2
- Variola 2
- Abantennarius 1
- Ablennes 1
- Acanthocybium 1
- Acanthogobius 1
- Actinopterygii 1
- Aeoliscus 1
- Agonomalus 1
- Agonus 1
- Albatrossia 1
- Alectis 1
- Allenbatrachus 1
- Amblyeleotris 1
- Amblygaster 1
- Anarrhichthys 1
- Anchoa 1
- Anisarchus 1
- Anisotremus 1
- Anoxypristis 1
- Antennatus 1
- Antimora 1
- Anyperodon 1
- Apeltes 1
- Apistus 1
- Arctogadus 1
- Argyropelecus 1
- Argyrosomus 1
- Artedidraco 1
- Astroscopus 1
- Atractoscion 1
- Atropus 1
- Atule 1
- Aulostomus 1
- Auxis 1
- Bagre 1
- Bairdiella 1
- Balistapus 1
- Barbus 1
- Bathygobius 1
- Bathysidus 1
- Bathytroctes 1
- Bellingshausenia 1
- Belone 1
- Belonoperca 1
- Benthosema 1
- Beringraja 1
- Beryx 1
- Blepsias 1
- Bodianus 1
- Bolbometopon 1
- Boops 1
- Boreogadus 1
- Brosme 1
- Bufoceratias 1
- C. nasus 1
- Calamus 1
- Callionymus 1
- Cantherhines 1
- Canthidermis 1
- Carassius 1
- Carcharodon 1
- Centrolophus 1
- Centrophryne 1
- Centropomus 1
- Centropristis 1
- Centropyge 1
- Centroscyllium 1
- Cephaloscyllium 1
- Ceratias 1
- Cetorhinus 1
- Cetoscarus 1
- Chaenocephalus 1
- Chaenodraco 1
- Chaenogaleus 1
- Chaetodipterus 1
- Chaetodontoplus 1
- Channa 1
- Chanos 1
- Chauliodus 1
- Chelidonichthys 1
- Chelmon 1
- Chiasmodon 1
- Chimaera 1
- Chionobathyscus 1
- Chlamydoselachus 1
- Chloroscombrus 1
- Cirrhitichthys 1
- Cirrhitus 1
- Cirrhoscyllium 1
- Cirripectes 1
- Clupeonella 1
- Cololabis 1
- Congresox 1
- Coris 1
- Corydoras 1
- Coryphaenoides 1
- Ctenochaetus 1
- Cyclichthys 1
- Dalatias 1
- Dascyllus 1
- Dasyatis 1
- Dendrochirus 1
- Dentex 1
- Diagramma 1
- Diaphus 1
- Dicentrarchus 1
- Diogenichthys 1
- Diplodus 1
- Dischistodus 1
- Discordipinna 1
- Dolloidraco 1
- Drepane 1
- Dunkleosteus 1
- Echeneis 1
- Echiichthys 1
- Echinorhinus 1
- Elagatis 1
- Elops 1
- Encheliophis 1
- Encrasicholina 1
- Eopsetta 1
- Epibulus 1
- Epinephelus guttatus 1
- Etmopterus 1
- Eucrossorhinus 1
- Euprotomicrus 1
- Eurypegasus 1
- Eurypharynx 1
- Eusphyra 1
- Eutrigla 1
- Favonigobius 1
- Feresa 1
- Fundulus 1
- Galeocerdo 1
- Gasterosteus 1
- Gempylus 1
- Genicanthus 1
- Genyonemus 1
- Gerres 1
- Ginglymostoma 1
- Girella 1
- Glossanodon 1
- Gnathanodon 1
- Gobiodon 1
- Gobiomorus 1
- Gobionotothen 1
- Goniistius 1
- Gorgasia 1
- Gosztonyia 1
- Grampus 1
- Gymnocanthus 1
- Gymnocranius 1
- Gymnomuraena 1
- Gymnosarda 1
- Harpadon 1
- Hemigaleus 1
- Hemipristis 1
- Hemitriakis 1
- Hemitrygon 1
- Heniochus 1
- Heptranchias 1
- Herklotsichthys 1
- Herring 1
- Heteroconger 1
- Hexanchus 1
- Hexanematichthys 1
- Hexatrygon 1
- Hilsa 1
- Hirundichthys 1
- Histiophryne 1
- Histrio 1
- Holacanthus 1
- Hydrolagus 1
- Hypanus 1
- Hyporhamphus 1
- Hypsypops 1
- Iago 1
- Icelus 1
- Idiacanthus 1
- Inimicus 1
- Ipnops 1
- Istiompax 1
- Isurus 1
- Katsuwonus 1
- Kuhlia 1
- Kurtus 1
- Kyphosus 1
- Lactoria 1
- Lagenodelphis 1
- Lagodon 1
- Lateolabrax 1
- Laticauda 1
- Leiostomus 1
- Lepidocybium 1
- Leptagonus 1
- Leptoclinus 1
- Lethenteron 1
- Lethrinus 1
- Leuciscus 1
- Leuresthes 1
- Lindbergichthys 1
- Liopsetta 1
- Lissodelphis 1
- Lithognathus 1
- Lobotes 1
- Loxodon 1
- Lubricogobius 1
- Macroramphosus 1
- Macruronus 1
- Maculabatis 1
- Malacosteus 1
- Mallotus 1
- Megachasma 1
- Megalaspis 1
- Megalops 1
- Melanogrammus 1
- Melichthys 1
- Menidia 1
- Menticirrhus 1
- Merlangius 1
- Micrenophrys 1
- Micropogonias 1
- Microstomus 1
- Mitsukurina 1
- Mola 1
- Monacanthus 1
- Monotaxis 1
- Mulloidichthys 1
- Mullus 1
- Mullus ponticus 1
- Muraena 1
- Muraenesox 1
- Myctophum 1
- Myliobatis 1
- Myrichthys 1
- Myripristis 1
- Myxine 1
- Naucrates 1
- Nebrius 1
- Nemateleotris 1
- Nematistius 1
- Nemichthys 1
- Neoarius 1
- Neoceratias 1
- Neoclinus 1
- Neoglyphidodon 1
- Neogobius 1
- Netuma 1
- Nomeus 1
- Notopterus 1
- Notorynchus 1
- Notothenia 1
- Ocyurus 1
- Odontaspis 1
- Odonus 1
- Ogcocephalus 1
- Okamejei 1
- Ophichtus 1
- Ophiodon 1
- Opisthonema 1
- Opsanus 1
- Orcaella 1
- Orcinus 1
- Osphronemus 1
- Otodus 1
- Oxymetopon 1
- Pagrus 1
- Pampus 1
- Parablennius 1
- Parachaetodon 1
- Paracheirodon 1
- Paracirrhites 1
- Parahucho 1
- Paralabrax 1
- Paraliparis 1
- Paranibea 1
- Parascolopsis 1
- Pardachirus 1
- Parexocoetus 1
- Parma 1
- Pastinachus 1
- Pegasus 1
- Pempheris 1
- Pentaceros 1
- Pentapodus 1
- Peponocephala 1
- Peprilus 1
- Percarina 1
- Petroscirtes 1
- Pholidapus 1
- Pholis 1
- Photostomias 1
- Phycodurus 1
- Plagiotremus 1
- Platax 1
- Plecoglossus 1
- Plectropomus 1
- Plesiobatis 1
- Pleuragramma 1
- Pleurogrammus 1
- Plotosus 1
- Podothecus 1
- Pogonias 1
- Pomatomus 1
- Premnas 1
- Prionace 1
- Prionotus 1
- Pristipomoides 1
- Psettodes 1
- Pseudobalistes 1
- Pseudocheilinus 1
- Pseudolabrus 1
- Pseudoliparis 1
- Pseudopleuronectes 1
- Pseudorca 1
- Pseudorhombus 1
- Pterapogon 1
- Pterocaesio 1
- Pungitius 1
- Pycnochromis 1
- Rachycentron 1
- Raja 1
- Rasbora 1
- Regalecus 1
- Reinhardtius 1
- Remora 1
- Rhabdosargus 1
- Rhincodon 1
- Rhinomuraena 1
- Rhynchactis 1
- Rhynchobatus 1
- Roa 1
- Roncador 1
- Rutilus 1
- Salangichthys 1
- Saloptia 1
- Sarda 1
- Sarda chiliensis 1
- Sarda sarda 1
- Schindleria 1
- Sciaena 1
- Sciaenops 1
- Scoliodon 1
- Scomberesox 1
- Scomberoides 1
- Scorpaenichthys 1
- Scorpis 1
- Scyliorhinus 1
- Sea flounders 1
- Selachimorpha 1
- Selar 1
- Selaroides 1
- Selene 1
- Seriolina 1
- Seriphus 1
- Serranus 1
- Simenchelys 1
- Solea 1
- Somniosus 1
- Sparus 1
- Sphaeramia 1
- Sprattus 1
- Squalus 1
- Stegostoma 1
- Steno 1
- Stenodus 1
- Stereolepis 1
- Stichaeus 1
- Stigmatogobius 1
- Stolephorus 1
- Strongylura 1
- Stylephorus 1
- Suezichthys 1
- Synanceia 1
- Synchiropus 1
- Syngnathiformes 1
- Synodus 1
- Taenianotus 1
- Taeniura 1
- Taeniurops 1
- Tanakius 1
- Tanichthys 1
- Tautoga 1
- Telatrygon 1
- Terapon 1
- Tetronarce 1
- Tetrosomus 1
- Thalassoma 1
- Thaleichthys 1
- Thamnaconus 1
- Thymallus 1
- Thymichthys 1
- Thyrsitoides 1
- Tosana 1
- Trachinus 1
- Triaenodon 1
- Trichiurus 1
- Tridentiger 1
- Trigla 1
- Tripterodon 1
- Trisopterus 1
- Urophycis 1
- Valenciennea 1
- Vimba 1
- Xiphias 1
- Zanclus 1
- Zeus 1
- Zoarces 1
Class
Phylum
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