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 Orthurethra Pilsbry, 1900
           Superfamily Cochlicopoidea Pilsbry, 1900 (1879)
             Family Cochlicopidae Pilsbry, 1900 (1879)
               1 Genus Cochlicopa Férussac, 1821
               2 Genus Azeca Fleming, 1828
               3 Genus Bulimus Scopoli, 1777 see Genus Bithynia Leach, 1818
               4 Genus Cryptazeca de Folin & Bérillon, 1877
               5 Genus Gomphroa Westerlund, 1902
               6 Genus Hypnophila Bourguignat, 1858