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 Nassariidae Iredale, 1916 (1835) - mud snails
Subfamily Nassariinae Iredale, 1916 (1835)
Genus Nassarius Duméril, 1806
Subgenus Cryptonassarius Cernohorsky, 1975