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 Helixarionoidea Bourguignat, 1883, orth. inval.
             Family Trochomorphidae Möllendorff, 1890
               Genus Trochomorpha Albers, 1850
                 1 Subgenus Benthemia Forcart, 1964
                 2 Subgenus Cotitrochus Baker, 1941
                 3 Subgenus Lauhala Baker, 1941
                 4 Subgenus Lentitrochus Baker, 1941
                 5 Subgenus Ludificator Baker, 1941
                 6 Subgenus Hartmanitrochus Solem, 1959