Phylum Mollusca Linnaeus, 1758 - molluscs
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Divasibranchia Minichev & Starobogatov, 1975
Order Stylommatophora Schmidt, 1855
see Infraorder Stylommatophora Schmidt, 1855
Suborder Mesurethra [monotypic]
Superfamily Clausilioidea Gray, 1855 [monotypic]
Family Clausiliidae Gray, 1855
Subfamily Zaptychinae Zilch, 1954
see Subfamily Zaptyxinae Zilch, 1954
Genus Oligozaptyx Pilsbry, 1905
Subgenus Idiozaptyx Pilsbry, 1909