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 Achatinoidea Swainson, 1840
               Family Subulinidae Fischer & Crosse, 1877
                 Subfamily Obeliscinae Thiele, 1931, nom. illeg. see Subfamily Stenogyrinae Fischer & Crosse, 1877
                   1 Genus Obeliscus Beck, 1837
                   2 Genus Cupulella Aguayo & Jaume, 1948
                   3 Genus Euonyma Melvill & Ponsonby, 1896
                   4 Genus Neobeliscus Pilsbry, 1896
                   5 Genus Pseudocolumna Wenz, 1920
                   6 Genus Rhodea Adams & Adams, 1855
                   7 Genus Synapterpes Pilsbry, 1896