Between brackets is the number of accepted extant species
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Shows the number of accepted extant species within the taxon
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- Biota (12 687)
- Kingdom Animalia (9 793)
- Phylum Acanthocephala (30)
- Phylum Annelida (618)
- Phylum Arthropoda (4 266)
- Phylum Brachiopoda (64)
- Phylum Bryozoa (363)
- Phylum Cephalorhyncha
- Phylum Chaetognatha (25)
- Phylum Chordata (1 415)
- Phylum Cnidaria (460)
- Subphylum Anthozoa (126)
- Subphylum Cnidaria incertae sedis
- Subphylum Endocnidozoa
- Subphylum Medusozoa (334)
- Class Hydrozoa (312)
- Subclass Hydroidolina (279)
- Order Anthoathecata (80)
- Order Leptothecata (152)
- Order Siphonophora accepted as Siphonophorae
- Order Siphonophorae (47)
- Suborder Calycophorae (39)
- Family Abylidae L. Agassiz, 1862 (1)
- Family Clausophyidae Bigelow, 1913 (6)
- Family Diphyidae Quoy & Gaimard, 1827 (20)
- Subfamily Diphyinae Quoy & Gaimard, 1827 (17)
- Genus Chelophyes Totton, 1932 (1)
- Genus Dimophyes Moser, 1925 (1)
- Genus Diphyes Cuvier, 1817 (3)
- Genus Eudoxoides Huxley, 1859
- Genus Lensia Totton, 1932 (10)
- Genus Muggiaea Busch, 1851 (2)
- Species Muggiaea atlantica Cunningham, 1892
- Species Muggiaea bargmannae Totton, 1954
- Subfamily Giliinae Pugh & Pages, 1995 (1)
- Subfamily Sulculeolariinae Totton, 1954 (2)
- Family Hippopodiidae Kölliker, 1853 (4)
- Family Prayidae Kölliker, 1853 (8)
- Suborder Cystonectae (1)
- Suborder Physonectae (7)
- Subclass Trachylinae (33)
- Class Scyphozoa (18)
- Class Staurozoa (4)
- Phylum Ctenophora (11)
- Phylum Dicyemida (1)
- Phylum Echinodermata (638)
- Phylum Ectoprocta accepted as Bryozoa
- Phylum Entoprocta
- Phylum Gastrotricha (1)
- Phylum Gnathostomulida
- Phylum Hemichordata (6)
- Phylum Kinorhyncha (9)
- Phylum Loricifera
- Phylum Mesozoa accepted as Dicyemida
- Phylum Mollusca (753)
- Phylum Nematoda (396)
- Phylum Nemertea (75)
- Phylum Nemertina represented as Nemertea
- Phylum Platyhelminthes (134)
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera (281)
- Phylum Priapulida (4)
- Phylum Rotifera (163)
- Phylum Tardigrada (80)
- Kingdom Archaea (1)
- Kingdom Bacteria (310)
- Kingdom Chromista (956)
- Kingdom Fungi (740)
- Kingdom Plantae (822)
- Kingdom Protozoa (65)
