Mollusca Linnaeus, 1758 - molluscs
   Gastropoda Cuvier, 1795 - snails and slugs
     Divasibranchia Minichev & Starobogatov, 1975
       Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
         (Helicid Sigmurethra)
           Helixarionoidea Bourguignat, 1883, orth. inval.
             Trochomorphidae Möllendorff, 1890
               Vitrinopsis Semper, 1873
                 1 Sundavitrina Rensch, 1932
                 2 Vitrinoidea Semper, 1873