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
Threat to people
Conservation status
Family
Genus
- Acanthurus 16
- Epinephelus 13
- Caranx 11
- Chaetodon 11
- Gymnothorax 9
- Lutjanus 9
- Cephalopholis 8
- Sardinella 7
- Amphiprion 6
- Coregonus 5
- Meiacanthus 5
- Pomacanthus 5
- Pterois 5
- Scarus 5
- Scorpaena 5
- Scorpaenopsis 5
- Sebastes 5
- Sphyraena 5
- Bothus 4
- Coryphaena 4
- Limanda 4
- Nemipterus 4
- Oncorhynchus 4
- Parupeneus 4
- Scomber 4
- Scomberomorus 4
- Seriola 4
- Tetrapturus 4
- Thunnus 4
- Trachinotus 4
- Trachurus 4
- Tylosurus 4
- Alepes 3
- Alosa 3
- Amblyglyphidodon 3
- Anodontostoma 3
- Carangoides 3
- Conger 3
- Cynoscion 3
- Diodon 3
- Euthynnus 3
- Haemulon 3
- Hippocampus 3
- Lagenorhynchus 3
- Merluccius 3
- Mugil 3
- Naso 3
- Orectolobus 3
- Paralichthys 3
- Pseudanthias 3
- Siganus 3
- Solenostomus 3
- Zebrasoma 3
- Abudefduf 2
- Acanthopagrus 2
- Antennarius 2
- Arothron 2
- Atherinomorus 2
- Balistoides 2
- Brevoortia 2
- Caesio 2
- Canthigaster 2
- Cheilopogon 2
- Chelon 2
- Chirocentrus 2
- Chlorurus 2
- Chrysiptera 2
- Citharichthys 2
- Corythoichthys 2
- Dactyloptena 2
- Decapterus 2
- Dussumieria 2
- Echidna 2
- Ecsenius 2
- Enchelycore 2
- Engraulis 2
- Exocoetus 2
- Globicephala 2
- Halichoeres 2
- Heterodontus 2
- Hexagrammos 2
- Hippoglossoides 2
- Holocentrus 2
- Labroides 2
- Lates 2
- Monocentris 2
- Morone 2
- Myoxocephalus 2
- Nematalosa 2
- Neopomacentrus 2
- Osmerus 2
- Paracanthurus 2
- Parascyllium 2
- Periophthalmus 2
- Photoblepharon 2
- Platichthys 2
- Plectorhinchus 2
- Pleuronectes 2
- Pollachius 2
- Pomacentrus 2
- Priacanthus 2
- Ptereleotris 2
- Rhinecanthus 2
- Saccopharynx 2
- Salmo 2
- Salvelinus 2
- Sardinops 2
- Saurida 2
- Scorpaenodes 2
- Stenella 2
- Stenotomus 2
- Syngnathus 2
- Trimma 2
- Ulua 2
- Uranoscopus 2
- Variola 2
- Abantennarius 1
- Ablennes 1
- Acanthocybium 1
- Acanthogobius 1
- Agonus 1
- Alectis 1
- Amblyeleotris 1
- Amblygaster 1
- Amblyraja 1
- Anarrhichthys 1
- Anchoa 1
- Anguilla 1
- Anisotremus 1
- Antennatus 1
- Antimora 1
- Anyperodon 1
- Apeltes 1
- Apistus 1
- Archosargus 1
- Argyropelecus 1
- Argyrosomus 1
- Arius 1
- Artedidraco 1
- Astroscopus 1
- Atelomycterus 1
- Atractoscion 1
- Atropus 1
- Atule 1
- Aulostomus 1
- Auxis 1
- Bagre 1
- Bairdiella 1
- Balistapus 1
- Bathygobius 1
- Bathytoshia 1
- Bathytroctes 1
- Belone 1
- Belonoperca 1
- Benthosema 1
- Beringraja 1
- Beryx 1
- Blepsias 1
- Boops 1
- Brama 1
- Bufoceratias 1
- C. nasus 1
- Calamus 1
- Callionymus 1
- Cantherhines 1
- Canthidermis 1
- Centrolophus 1
- Centrophryne 1
- Centropomus 1
- Centropristis 1
- Centropyge 1
- Centroscyllium 1
- Ceratias 1
- Cetoscarus 1
- Chaetodipterus 1
- Channa 1
- Chanos 1
- Chauliodus 1
- Cheilinus 1
- Chelidonichthys 1
- Chelmon 1
- Chiasmodon 1
- Chlamydoselachus 1
- Chloroscombrus 1
- Cirrhilabrus 1
- Cirrhitichthys 1
- Cirrhitus 1
- Cirripectes 1
- Clupea 1
- Clupeonella 1
- Cololabis 1
- Congresox 1
- Coris 1
- Corydoras 1
- Ctenochaetus 1
- Cyclichthys 1
- Dendrochirus 1
- Diaphus 1
- Dicentrarchus 1
- Diogenichthys 1
- Diplodus 1
- Discordipinna 1
- Dunckerocampus 1
- Echeneis 1
- Elacatinus 1
- Elagatis 1
- Eleginus 1
- Elops 1
- Encheliophis 1
- Eopsetta 1
- Epibulus 1
- Epinephelus guttatus 1
- Eucrossorhinus 1
- Euprotomicrus 1
- Eurypegasus 1
- Eurypharynx 1
- Eutrigla 1
- Favonigobius 1
- Feresa 1
- Fundulus 1
- Gasterosteus 1
- Gempylus 1
- Genicanthus 1
- Genyonemus 1
- Gerres 1
- Gigantactis 1
- Girella 1
- Gnathanodon 1
- Gobiodon 1
- Grampus 1
- Gymnocranius 1
- Gymnomuraena 1
- Gymnosarda 1
- Gymnura 1
- Hemiramphus 1
- Hemiscyllium 1
- Heniochus 1
- Herklotsichthys 1
- Herring 1
- Heteroconger 1
- Hexatrygon 1
- Hilsa 1
- Hippoglossus 1
- Hirundichthys 1
- Histrio 1
- Holacanthus 1
- Hydrolagus 1
- Hypanus 1
- Hyporhamphus 1
- Hypsypops 1
- Iago 1
- Idiacanthus 1
- Iniistius 1
- Ipnops 1
- Istiophorus 1
- Katsuwonus 1
- Kuhlia 1
- Kurtus 1
- Kyphosus 1
- Lagenodelphis 1
- Lagodon 1
- Lamna 1
- Larimichthys 1
- Lateolabrax 1
- Laticauda 1
- Leiostomus 1
- Lepidocybium 1
- Lethenteron 1
- Lethrinus 1
- Leuciscus 1
- Liopsetta 1
- Liparis 1
- Lissodelphis 1
- Lithognathus 1
- Lobotes 1
- Lophius 1
- Lubricogobius 1
- Lycodes 1
- Macroramphosus 1
- Malacosteus 1
- Megachasma 1
- Megalaspis 1
- Melanocetus 1
- Melichthys 1
- Menidia 1
- Merlangius 1
- Micrenophrys 1
- Microgadus 1
- Micromesistius 1
- Micropogonias 1
- Microstomus 1
- Mitsukurina 1
- Molva 1
- Monacanthus 1
- Monotaxis 1
- Mulloidichthys 1
- Mullus 1
- Muraena 1
- Muraenesox 1
- Myctophum 1
- Myrichthys 1
- Myripristis 1
- Myxine 1
- Naucrates 1
- Nemateleotris 1
- Nematistius 1
- Nemichthys 1
- Neobathyclupea 1
- Neoceratias 1
- Neoclinus 1
- Neoglyphidodon 1
- Neogobius 1
- Nomeus 1
- Notopterus 1
- Odonus 1
- Ogcocephalus 1
- Ophichtus 1
- Ophiodon 1
- Opisthonema 1
- Opsanus 1
- Osphronemus 1
- Ostorhinchus 1
- Ostracion 1
- Pagrus 1
- Parablennius 1
- Parachaetodon 1
- Paracheirodon 1
- Paracirrhites 1
- Paralabrax 1
- Paranibea 1
- Parascolopsis 1
- Pardachirus 1
- Parma 1
- Pastinachus 1
- Pentapodus 1
- Peponocephala 1
- Petroscirtes 1
- Photostomias 1
- Phycodurus 1
- Plagiotremus 1
- Platax 1
- Plectropomus 1
- Plesiobatis 1
- Pleuragramma 1
- Pogonias 1
- Premnas 1
- Prionotus 1
- Pristipomoides 1
- Pseudobalistes 1
- Pseudocheilinus 1
- Pseudolabrus 1
- Pseudopleuronectes 1
- Pseudorhombus 1
- Pterocaesio 1
- Pungitius 1
- Pycnochromis 1
- Rachycentron 1
- Regalecus 1
- Remora 1
- Rhabdosargus 1
- Rhinomuraena 1
- Rhizoprionodon 1
- Roa 1
- Roncador 1
- Salangichthys 1
- Saloptia 1
- Sarda 1
- Sarda sarda 1
- Schindleria 1
- Sciaenops 1
- Scomberesox 1
- Scomberoides 1
- Scophthalmus 1
- Scorpaenichthys 1
- Sea flounders 1
- Selar 1
- Selaroides 1
- Selene 1
- Seriolina 1
- Seriphus 1
- Serranus 1
- Simenchelys 1
- Sparus 1
- Sphaeramia 1
- Sprattus 1
- Squatina 1
- Steno 1
- Stolephorus 1
- Strongylura 1
- Stylephorus 1
- Suezichthys 1
- Synanceia 1
- Synchiropus 1
- Syngnathiformes 1
- Synodus 1
- Taenianotus 1
- Taeniura 1
- Terapon 1
- Tetronarce 1
- Tetrosomus 1
- Thalassoma 1
- Thaleichthys 1
- Thamnaconus 1
- Thymallus 1
- Trachinus 1
- Triakis 1
- Trichiurus 1
- Tridentiger 1
- Trigla 1
- Trisopterus 1
- Tursiops 1
- Urophycis 1
- Valenciennea 1
- Vimba 1
- Zanclus 1
- Zoarces 1
