Between brackets is the number of accepted marine extant species
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Shows the number of accepted marine extant species within the taxon
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- Biota (247 538)
- Kingdom Animalia (211 503)
- Subkingdom Animalia incertae sedis
- Subkingdom Metazoa accepted as Animalia
- Phylum Acanthocephala (516)
- Phylum Annelida (14 105)
- Phylum Arthropoda (59 754)
- Phylum Aschelminthes
- Phylum Brachiopoda (408)
- Phylum Bryozoa (6 539)
- Phylum Cephalorhyncha
- Phylum Chaetognatha (132)
- Phylum Chordata (24 095)
- Subphylum Cephalochordata (30)
- Subphylum Tunicata (3 134)
- Subphylum Urochordata accepted as Tunicata
- Subphylum Vertebrata (20 931)
- Infraphylum Agnatha (103)
- Infraphylum Gnathostomata (20 828)
- Parvphylum Chondrichthyes (1 291)
- Parvphylum Osteichthyes (18 645)
- Gigaclass Actinopterygii (18 643)
- Superclass Actinopteri (18 642)
- Class Chondrostei (25)
- Class Holostei (4)
- Class Teleostei (18 613)
- Order Acanthuriformes (441)
- Order Acropomatiformes (308)
- Order Albuliformes (13)
- Order Alepocephaliformes (144)
- Order Anabantiformes (28)
- Order Anguilliformes (1 052)
- Order Argentiniformes (97)
- Order Ateleopodiformes (14)
- Order Atheriniformes (151)
- Order Aulopiformes (295)
- Order Batrachoidiformes (78)
- Order Beloniformes (212)
- Order Beryciformes (125)
- Order Blenniiformes (955)
- Order Callionymiformes (213)
- Order Carangaria incertae sedis (96)
- Order Carangiformes (172)
- Order Centrarchiformes (178)
- Order Cetomimiformes accepted as Beryciformes
- Order Characiformes (35)
- Order Cichliformes (67)
- Order Clupeiformes (359)
- Order Cypriniformes (318)
- Order Cyprinodontiformes (114)
- Order Dactylopteriformes (14)
- Order Elopiformes (9)
- Order Esociformes (2)
- Order Eupercaria incertae sedis (1 787)
- Order Gadiformes (641)
- Order Galaxiiformes (12)
- Order Gasterosteiformes accepted as Gasterosteoidei
- Order Gobiesociformes (179)
- Order Gobiiformes (1 931)
- Order Gonorynchiformes (6)
- Order Gymnotiformes (1)
- Order Holocentriformes (92)
- Order Kurtiformes (363)
- Order Lampriformes (27)
- Order Lophiiformes (399)
- Order Mugiliformes (77)
- Order Mulliformes (100)
- Order Myctophiformes (257)
- Order Notacanthiformes (28)
- Order Ophidiiformes (568)
- Order Osmeriformes (34)
- Order Osteoglossiformes (3)
- Order Ovalentaria incertae sedis (795)
- Order Perciformes (3 096)
- Suborder Acanthuroidei accepted as Acanthuriformes
- Suborder Anabantoidei accepted as Anabantiformes
- Suborder Bembropoidei
- Suborder Blennioidei accepted as Blenniiformes
- Suborder Callionymoidei accepted as Callionymiformes
- Suborder Caproidei accepted as Caproidae Bonaparte, 1835
- Suborder Channoidei
- Suborder Cottoidei (788)
- Suborder Gasterosteoidei (13)
- Suborder Gobioidei accepted as Gobiiformes
- Suborder Icosteoidei accepted as Scombroidei
- Suborder Kurtoidei accepted as Kurtiformes
- Suborder Labroidei accepted as Eupercaria incertae sedis
- Suborder Notothenioidei (164)
- Suborder Percoidei (659)
- Suborder Percophoidei (1)
- Suborder Pholidichthyioidei accepted as Pholidichthyidae Jordan, 1896
- Suborder Scombrolabracoidei accepted as Scombrolabracidae Fowler, 1925
- Suborder Scorpaenoidei (854)
- Suborder Serranoidei accepted as Percoidei
- Suborder Sphyraenoidei accepted as Carangiformes
- Suborder Stromateoidei accepted as Scombriformes
- Suborder Trachinoidei accepted as Uranoscopoidei
- Suborder Uranoscopoidei (192)
- Suborder Xiphioidei accepted as Xiphiidae Rafinesque, 1815
- Suborder Zoarcoidei (425)
- Family Anarhichadidae Bonaparte, 1835 (5)
- Family Bathymasteridae Jordan & Gilbert, 1883 (7)
- Family Cebidichthyidae Gill, 1862 (1)
- Family Cryptacanthodidae Gill, 1861 (4)
- Family Eulophiidae Smith, 1902
- Family Lumpenidae Jordan & Evermann, 1898
- Family Neozoarcidae Jordan & Snyder, 1902
- Family Opisthocentridae Jordan & Evermann, 1898
- Family Pholidae Gill, 1893 (15)
- Family Ptilichthyidae Jordan & Gilbert, 1883 (1)
- Family Scytalinidae Jordan & Starks, 1895 (1)
- Family Stichaeidae Gill, 1864 (83)
- Family Zaproridae Jordan, 1896 (1)
- Family Zoarcidae Swainson, 1839 (307)
- Subfamily Gymnelinae Gill, 1863 (55)
- Genus Andriashevia Fedorov & Neyelov, 1978 (1)
- Genus Barbapellis Iglésias, Dettai & Ozouf-Costaz, 2012 (1)
- Genus Bilabria Schmidt, 1936 (2)
- Genus Commandorella Taranetz & Andriashev, 1935 accepted as Gymnelus Reinhardt, 1834
- Genus Davidijordania Popov, 1931 (5)
- Genus Davidojordania accepted as Davidijordania Popov, 1931
- Genus Ericandersonia Shinohara & Sakurai, 2006 (1)
- Genus Gengea Katayama, 1943 accepted as Gymnelopsis Soldatov, 1922
- Genus Gymnelichthys Fischer, 1885 accepted as Gymnelus Reinhardt, 1834
- Genus Gymnelis accepted as Gymnelus Reinhardt, 1834
- Genus Gymnelopsis Soldatov, 1922 (5)
- Genus Gymnelus Reinhardt, 1834 (12)
- Genus Hadropareia Schmidt, 1904 (2)
- Genus Krusensterniella Schmidt, 1904 (4)
- Species Krusensterniella maculata Andriashev, 1938
- Species Krusensterniella multispinosa Soldatov, 1922
- Species Krusensterniella notabilis Schmidt, 1904
- Species Krusensterniella pavlovskii Andriashev, 1955
- Genus Magadania Shinohara, Nazarkin & Chereshnev, 2004 accepted as Magadanichthys Shinohara, Nazarkin, Yabe & Chereshnev, 2006
- Genus Magadanichthys Shinohara, Nazarkin, Yabe & Chereshnev, 2006 (1)
- Genus Melanostigma Günther, 1881 (14)
- Genus Nalbantichthys Schultz, 1967 (1)
- Genus Opaeophacus Bond & Stein, 1984 (1)
- Genus Puzanovia Fedorov, 1975 (2)
- Genus Seleniolycus Anderson, 1988 (3)
- Subfamily Lycodinae Gill, 1861 (245)
- Subfamily Lycozoarcinae Andriashev, 1939 (1)
- Subfamily Zoarcinae Swainson, 1839 (6)
- Genus Derjuginia Popov, 1931 accepted as Gymnelopsis Soldatov, 1922
- Genus Ilucocoetes accepted as Iluocoetes Jenyns, 1842
- Genus Phucocoetus accepted as Phucocoetes Jenyns, 1842
- Family Coracinidae accepted as Dichistiidae Smith, 1935
- Family Pomadasyidae accepted as Haemulidae Gill, 1885
- Order Pleuronectiformes (788)
- Order Polymixiiformes (12)
- Order Saccopharyngiformes accepted as Anguilliformes
- Order Salmoniformes (65)
- Order Scombriformes (284)
- Order Scorpaeniformes accepted as Scorpaenoidei
- Order Siluriformes (270)
- Order Stephanoberyciformes accepted as Beryciformes
- Order Stomiiformes (450)
- Order Stylephoriformes (1)
- Order Synbranchiformes (18)
- Order Syngnathiformes (324)
- Order Tetraodontiformes (412)
- Order Trachichthyiformes (68)
- Order Zeiformes (35)
- Superclass Cladistia (1)
- Gigaclass Sarcopterygii (2)
- Megaclass Tetrapoda (892)
- Superclass Pisces
- Phylum Cnidaria (12 578)
- Phylum Ctenophora (184)
- Phylum Cycliophora (2)
- Phylum Dicyemida (122)
- Phylum Echinodermata (7 644)
- Phylum Ectoprocta accepted as Bryozoa
- Phylum Entoprocta (202)
- Phylum Gastrotricha (523)
- Phylum Gnathostomulida (100)
- Phylum Hemichordata (137)
- Phylum Kinorhyncha (348)
- Phylum Loricifera (46)
- Phylum Mesozoa accepted as Dicyemida
- Phylum Mollusca (52 039)
- Phylum Nematoda (6 758)
- Phylum Nematomorpha (5)
- Phylum Nemertea (1 332)
- Phylum Nemertina represented as Nemertea
- Phylum Nemertini accepted as Nemertea
- Phylum Orthonectida (24)
- Phylum Pentastomida accepted as Pentastomida
- Phylum Phoronida (13)
- Phylum Placozoa (4)
- Phylum Platyhelminthes (13 493)
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera (9 470)
- Phylum Priapulida (22)
- Phylum Rotatoria accepted as Rotifera
- Phylum Rotifera (208)
- Phylum Sipunculida accepted as Sipuncula
- Phylum Tardigrada (263)
- Phylum Xenacoelomorpha (437)
- Kingdom Archaea (117)
- Kingdom Bacteria (2 223)
- Kingdom Chromista (20 790)
- Kingdom Fungi (1 432)
- Kingdom Monera represented as Bacteria
- Kingdom Plantae (10 581)
- Kingdom Protozoa (766)
- Kingdom Viruses (115)
