Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
         Suborder Neotaenioglossa Haller, 1882 see Order Sorbeoconcha Ponder & Lindberg, 1997
           Superfamily Stromboidea Rafinesque, 1815
             Family Struthiolariidae Gabb, 1868 - ostrich-foot snails
               1 Genus Struthiolaria Lamarck, 1816
               2 Genus Perrisodonta 1987, orth. inval. see Genus Perissodonta Martens, 1878