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 Muricoidea Rafinesque, 1815
             Family Muricidae Rafinesque, 1815 - drills
               Subfamily Typhinae Cossmann, 1903, nom. illeg.
                 1 Genus Typhis Montfort, 1810
                 2 Genus Distichotyphis Keen & Campbell, 1964
                 3 Genus Monstrotyphis Habe, 1961
                 4 Genus Siphonochelus Jousseaume, 1880
                 5 Genus Typhisala Jousseaume, 1881
                 6 Genus Typhinellus Jousseaume, 1880