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
         (Helicid Sigmurethra)
           Superfamily Vitrinoidea Fitzinger, 1833 see Superfamily Limacoidea Batsch, 1789
             Family Zonitidae Mörch, 1864
               Subfamily Godwiniinae Cooke, 1921 [monotypic]
                 Genus Godwinia Sykes, 1900
                   1 Subgenus Omphalops Baker, 1941