Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Neogastropoda Wenz, 1938 see Suborder Neogastropoda Wenz, 1938
         Suborder Stenoglossa Bouvier, 1887
           Superfamily Conoidea Fleming, 1822
             Family Pseudomelatomidae Morrison, 1965
               1 Genus Hormospira Berry, 1958
               2 Genus Pseudomelatoma Dall, 1918
               3 Genus Tiaraturris Vaught, 1989, orth. inval. see Genus Tiariturris Berry, 1958
               4 Subfamily Strictispirinae McLean, 1971 see Family Strictispiridae McLean, 1971