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
         (Helicid Sigmurethra)
           Superfamily Helicoidea Rafinesque, 1815
             Family Helicidae Rafinesque, 1815
               Subfamily Helicigoninae Wenz, 1915 see Subfamily Ariantinae Mörch, 1864
                 Genus Chilostoma Fitzinger, 1833
                   1 Subgenus Campylaeopsis Wagner, 1914
                   2 Subgenus Cingulifera Held, 1837
                   3 Subgenus Drobacia Brusina, 1904
                   4 Subgenus Kosicia Brusina, 1904
                   5 Subgenus Thiessea Kobelt, 1904