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 Trivioidea F.H. Troschel, 1863
see Superfamily Velutinoidea Gray, 1840
Family Ovulidae Fleming, 1822 - egg snails
Subfamily Ovulinae Fleming, 1822
Tribe Ovulini Fleming, 1822
Genus Ovula Bruguière, 1789