Phylum Mollusca Linnaeus, 1758 - molluscs
Status: extant
   Class Gastropoda Cuvier, 1795 - snails and slugs
  Status: extant
     Subclass Divasibranchia Minichev & Starobogatov, 1975
    Status: extant
       Order Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
      Status: extant
         (Helicid Sigmurethra)
        Status: extant
           Superfamily Helixarionoidea Bourguignat, 1883, orth. inval.
          Status: extant
             Family Ariophantidae Godwin-Austen, 1888
            Status: extant
               Subfamily Macrochlamydinae Godwin-Austen, 1888
              Status: extant
                 Genus Vitrinula Gray, 1857
                Status: extant
                   1 Subgenus Otesiopsis Habe, 1946
                  Status: extant
                   2 Subgenus Pliotropis Möllendorff, 1899
                  Status: extant