Phylum Mollusca Linnaeus, 1758 - molluscs
Subphylum Conchifera Gegenbauer, 1878
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Orthogastropoda Ponder & Lindberg, 1995
Superorder Heterobranchia Burmeister, 1837
Order Opisthobranchia Milne-Edwards, 1848
Suborder Cephalaspidea Fischer, 1883 - bubble snails
see Order Cephalaspidea Fischer, 1883
Superfamily Bulloidea Gray, 1827
Family Bullidae Gray, 1827