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)
- 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)
- Suborder Heteroglossa
- Suborder Ptenoglossa
- Superfamily Campaniloidea
- Superfamily Cerithioidea J. Fleming, 1822 (7)
- Family Cerithiidae J. Fleming, 1822
- Family Fossaridae A. Adams, 1860 accepted as Fossarinae A. Adams, 1860
- Family Litiopidae Gray, 1847 (1)
- Family Planaxidae J. E. Gray, 1850
- Family Turritellidae Lovén, 1847 (6)
- Subfamily Turritellinae Lovén, 1847 (6)
- Genus Banzarecolpus A. W. B. Powell, 1957 (2)
- Genus Colpospirella A. W. B. Powell, 1951 (1)
- Species Colpospirella algida (Melvill & Standen, 1912)
- Genus Turritella Lamarck, 1799 (3)
- Superfamily Cerithiopsoidea accepted as Triphoroidea J. E. Gray, 1847
- Superfamily Epitonioidea S. S. Berry, 1910 (1812) (4)
- Superfamily Triphoroidea J. E. Gray, 1847 (12)
- Order Littorinimorpha (115)
- 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)
