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formerly placed in the Order: CEPHALASPIDEA, in the Subclass: OPISTHOBRANCHIA

Class: Gastropoda   Cuvier, 1797
Subclass:  Heterobranchia J.E. Gray, 1840
Clade: Euthyneura Spengel, 1881
Clade: Euopisthobranchia Jörger et al., 2010
Clade: Cephalaspidea  P. Fischer, 1883

Superfamily: Haminoeoidea  Pilsbry, 1895
Family: Haminoeidae  Pilsbry, 1895

Haminoea cymbalum

Superfamily:  Philinoidea  J.E. Gray, 1850
Family:  Aglajidae  Pilsbry, 1895 (1847)

Chelidonura punctata

Tubulophilinopsis gardineri

Family:  Gastropteridae  Swainson, 1840

Sagaminopteron psychedelicum