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 Helicodontinae Kobelt, 1904
                 01 Genus Helicodonta sensu Risso, 1826 see Genus Helicodonta Férussac, 1821
                 02 Genus Canariella Hesse, 1918
                 03 Genus Caracollina Beck, 1837
                 04 Genus Drepanostoma Porro, 1836
                 05 Genus Gasulliella Gittenberger, 1980
                 06 Genus Lindholmiola Hesse, 1931
                 07 Genus Mastigophallus Hesse, 1918
                 08 Genus Oestophora Hesse, 1907
                 09 Genus Oestophorella Pfeffer, 1929
                 10 Genus Soosia Hesse, 1918
                 11 Genus Trissexodon Pilsbry, 1895