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 (12 686)
- Kingdom Animalia (9 792)
- Phylum Acanthocephala (30)
- Phylum Annelida (618)
- Phylum Arthropoda (4 265)
- Phylum Brachiopoda (64)
- Phylum Bryozoa (363)
- Phylum Cephalorhyncha
- Phylum Chaetognatha (25)
- Phylum Chordata (1 415)
- Phylum Cnidaria (460)
- 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)
- Subphylum Aculifera
- Subphylum Conchifera
- Subphylum Placophora accepted as Polyplacophora
- Superclass Aplacophora
- Class Bivalvia (125)
- Class Caudofoveata (1)
- Class Cephalopoda (80)
- Class Gastropoda (426)
- Subclass Caenogastropoda (274)
- Subterclass Sorbeoconcha
- Superorder Hypsogastropoda
- Order Caenogastropoda incertae sedis (23)
- Order Littorinimorpha (115)
- Superfamily Calyptraeoidea Lamarck, 1809 (2)
- Superfamily Capuloidea J. Fleming, 1822 (8)
- Superfamily Cassoidea accepted as Tonnoidea Suter, 1913 (1825)
- Superfamily Cingulopsoidea Fretter & Patil, 1958 (16)
- Superfamily Crepiduloidea J. Fleming, 1822 accepted as Calyptraeoidea Lamarck, 1809
- Superfamily Cypraeoidea Rafinesque, 1815
- Superfamily Eulimoidea R. A. Philippi, 1853 accepted as Vanikoroidea Gray, 1840
- Superfamily Ficoidea Meek, 1864 (1840) (1)
- Superfamily Hipponicoidea Troschel, 1861
- Superfamily Littorinoidea Children, 1834 (19)
- Superfamily Naticoidea Guilding, 1834 (22)
- Superfamily Rissooidea Gray, 1847 (23)
- Superfamily Stromboidea Rafinesque, 1815 (1)
- Superfamily Tonnoidea Suter, 1913 (1825) (2)
- Superfamily Truncatelloidea J. E. Gray, 1840 (1)
- Superfamily Vanikoroidea Gray, 1840 (9)
- Superfamily Velutinoidea Gray, 1840 (11)
- Family Eratoidae Gill, 1871 (2)
- Family Lamellariidae A. d'Orbigny, 1841 accepted as Lamellariinae A. d'Orbigny, 1841
- Family Triviidae Troschel, 1863
- Family Velutinidae Gray, 1840 (9)
- Subfamily Lamellariinae A. d'Orbigny, 1841
- Subfamily Marseniopsinae Fassio, Bouchet, Schiaparelli & Oliverio, 2022 (9)
- Genus Lamellariopsis Vayssière, 1906 (2)
- Species Lamellariopsis aurora Hedley, 1916
- Species Lamellariopsis turqueti Vayssière, 1906
- Genus Marseniopsis Bergh, 1886 (7)
- Subfamily Velutininae Gray, 1840
- Superfamily Xenophoroidea Troschel, 1852 (1840) accepted as Stromboidea Rafinesque, 1815
- Order Neogastropoda (136)
- Subclass Heterobranchia (75)
- Subclass Neomphaliones accepted as Vetigastropoda
- Subclass Patellogastropoda (8)
- Subclass Prosobranchia
- Subclass Vetigastropoda (69)
- Class Monoplacophora
- Class Polyplacophora (12)
- Class Scaphopoda (11)
- Class Solenogastres (98)
- Subclass Chaetodermomorpha accepted as Caudofoveata
- 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)
