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 Oleacinoidea H. Adams & A. Adams, 1855
               Family Spiraxidae Baker, 1939
                 Subfamily Euglandininae Baker, 1941
                   1 Genus Euglandina Crosse & Fischer, 1870
                   2 Genus Guillarmodia Baker, 1941
                   3 Genus Pittieria Martens, 1901
                   4 Genus Poiretia Fischer, 1883
                   5 Genus Varicoglandina Pilsbry, 1908
                   6 Genus Varicoturris Pilsbry, 1907