Species List for Genus: Ptychodon
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Mollusca (Phylum) > Gastropoda (Class) > Heterobranchia (Subclass) > Euthyneura (Infraclass) > Tectipleura (Subterclass) > Eupulmonata (Superorder) > Stylommatophora (Order) > Helicina (Suborder) > [unassigned] Helicina (Infraorder) > Punctoidea (Superfamily) >
Charopidae (Family) >
Rotadiscinae (Subfamily) >
Ptychodon (Genus)
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