Between brackets is the number of accepted extant species
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Shows the number of accepted extant species within the taxon
The last expanded taxon is highlighted
Click on "+" to expand/show all child taxa
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- Biota (879)
- Kingdom Animalia (681)
- Phylum Annelida (119)
- Phylum Arthropoda (168)
- Phylum Bryozoa (3)
- Phylum Chaetognatha (2)
- Phylum Chordata (276)
- Phylum Cnidaria (5)
- Phylum Ctenophora (3)
- Phylum Echinodermata (7)
- Phylum Kinorhyncha (2)
- Phylum Mollusca (70)
- Class Bivalvia (36)
- Class Cephalopoda (4)
- Class Gastropoda (29)
- Subclass Caenogastropoda (13)
- Subclass Heterobranchia (15)
- Infraclass Euthyneura (15)
- Subterclass Ringipleura (8)
- Subterclass Tectipleura (7)
- Superorder Eupulmonata (2)
- Superorder Hygrophila (3)
- Superfamily Lymnaeoidea Rafinesque, 1815 (3)
- Family Lymnaeidae Rafinesque, 1815 (1)
- Family Physidae Fitzinger, 1833 (1)
- Subfamily Physinae Fitzinger, 1833 (1)
- Family Planorbidae Rafinesque, 1815 (1)
- Superfamily Planorboidea Rafinesque, 1815 accepted as Lymnaeoidea Rafinesque, 1815
- Superorder Sacoglossa (1)
- Order Cephalaspidea (1)
- Infraclass Opisthobranchia
- Infraclass Pulmonata
- Subclass Patellogastropoda (1)
- Class Polyplacophora (1)
- Phylum Nematoda (1)
- Phylum Platyhelminthes (1)
- Phylum Porifera (2)
- Phylum Rotifera (22)
- Kingdom Bacteria (5)
- Kingdom Chromista (179)
- Kingdom Plantae (14)
- Kingdom Protozoa