Phylum [Mollusca] Linnaeus, 1758 - molluscs
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs
see Class Gastropoda Cuvier, 1795
Order Archaegastropoda
see Order Archaeogastropoda Thiele, 1925
Superfamily Trochacea
see Superfamily Trochoidea Rafinesque, 1815
Family Trochidae Rafinesque, 1815 - top snails
Subfamily Margaritinae Thiele, 1924, nom. cons. prop.
Genus Euchelus Philippi, 1847
Subgenus Euchelus (Herpetopoma) Pilsbry, 1889
see Genus Herpetopoma Pilsbry, 1890