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
         (Achatinid Sigmurethra)
           Suborder Sigmurethra Pilsbry, 1900 see Group Sigmurethra Pilsbry, 1900
             Superfamily Plectopylidoidea Möllendorff, 1898 see Superfamily Plectopyloidea Möllendorff, 1898
               1 Family Sculptariidae Degner, 1923 [monotypic]
               2 Family Plectopylididae Möllendorff, 1898 see Family Plectopylidae Möllendorff, 1898