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 Rhytidoidea Pilsbry, 1893
               Family Haplotrematidae Baker, 1925
                 Genus Haplotrema Ancey, 1881
                   1 Subgenus Ancomena Baker, 1931
                   2 Subgenus Ancotrema Baker, 1931
                   3 Subgenus Greggiella Baker, 1941
                   4 Subgenus Haplomena Baker, 1931
                   5 Subgenus Geomene Pilsbry, 1927
                   6 Subgenus Zophos Gude, 1911 see Genus Zophos Gude, 1911