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 Fasciolariidae Gray, 1853 - tulip snails
Subfamily Fasciolariinae Gray, 1853
Genus Clavilithes Swainson, 1840
1 Subgenus Clavilithes Swainson, 1840
3 Subgenus Cosmolithes Grabau, 1904