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 Rachiglossa (Gray, 1853)
see Superfamily Muricacea de Costa, 1776
Superfamily Muricacea de Costa, 1776
see Superfamily Muricoidea Rafinesque, 1815
Family Muricidae Rafinesque, 1815 - drills
Subfamily Thaidinae Jousseaume, 1888
see Subfamily Rapaninae Gray, 1853
Genus Cronia Adams & Adams, 1853
Subgenus Cronia (Pascula) Dall, 1908
see Genus Pascula Dall, 1908