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 Toxoglossa (Troschel, 1848) see Superfamily Conacea Rafinesque, 1815
           Superfamily Conacea Rafinesque, 1815 see Superfamily Conoidea Fleming, 1822
             Family Turridae Adams & Adams, 1853 (1838) - turret snails
               Subfamily Clathurellinae Adams & Adams, 1858
                 1 Genus Etrema Hedley, 1918
                 2 Genus Eucithara Fischer, 1883
                 3 Genus Glyphostoma Gabb, 1872
                 4 Genus Horaiclavus Oyama, 1954
                 5 Genus Lienardia Jousseaume, 1884
                 6 Genus Mangelia Risso, 1826
                 7 Genus Paraclathurella Boettger, 1895