Phylum Mollusca Linnaeus, 1758 - molluscs
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Divasibranchia Minichev & Starobogatov, 1975
Order Basommatophora Keferstein, 1865
see Suborder Basommatophora Keferstein, in Bronn, 1864
Superfamily Physoidea Fitzinger, 1833 [monotypic]
Family Physidae Fitzinger, 1833
Genus Physa Draparnaud, 1801
Subgenus Berinophysa Vaught, 1989, orth. inval.
see Subgenus Beringophysa Starobogatov & Budnikova, 1976