Phylum Mollusca Linnaeus, 1758 - molluscs
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs
see Class Gastropoda Cuvier, 1795
Order Caenogastropoda Cox, 1960
see Superorder Caenogastropoda Cox, 1960
Suborder Neotaenioglossa Haller, 1882
see Order Sorbeoconcha Ponder & Lindberg, 1997
Superfamily Scaphoconchoidea Bandel, 1993, nom. inval. [monotypic]
Family Capulidae Fleming, 1822 - cap snails
Genus Trichotropis Broderip & Sowerby, 1829
Subgenus Iphinoe Adams & Adams, 1854, nom. illeg.
see Genus Neoiphinoe Habe, 1978