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

Class : Gastropoda  Cuvier, 1797
Subclass:  Heterobranchia  J.E. Gray, 1840
informal group:  Lower Heterobranchia (Allogastropoda)  Haszprunar, 1985
according to Bouchet & Rocroi (2005) is the superfamily Acteonoidea no more in the Order Cephalaspidea

Superfamily:  Acteonoidea  d'Orbigny, 1843
Family:  Aplustridae  J.E. Gray, 1847

Hydatina amplustre

Hydatina physis

Micromelo scriptus

Family: Bullinidae  Lamarck, 1801

Bullina lineata

Bullina vitrea

Class:  Gastropoda  Cuvier, 1797
Subclass:  Heterobranchia  J.E. Gray, 1840
Clade:  Euthyneura Spengel, 1881
Superorder:  Euopisthobranchia  Jörger et al., 2010
Order:  Cephalaspidea  P. Fischer, 1883
Superfamily:  Bulloidea  J.E. Gray, 1827
Family:  Bullidae  J.E. Gray, 1827

Bulla quoyii

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

Papawera maugeansis

Papawera zelandiae

Roxaniella leucampyx

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

Biuve fulvipunctata	Chelidonura electra	Chelidonura hirundinina	Chelidonura varians	Mariaglaja inornata
Melanochlamys cylindrica	Melanochlamys queritor	Nakamigawaia sp. 03	Noalda exigua	Tubulophilinopsis lineolata
Philinopsis speciosa	Philinopsis taronga

Family:  Gastropteridae  Swainson, 1840

Sagaminopteron ornatum

Sagaminopteron psychedelicum

Siphopteron sp. 05

Siphopteron sp. 10

Family:  Philinidae  J.E. Gray, 1850

Philine angasi

Philine auriformis

Order:  Runcinida  Burn, 1963
Superfamily:  Runcinoidea  H. Adams & A. Adams, 1854
Family:  Ilbiidae  Burn, 1963

Ilbia ilbi

Family:  Runcinidae  J.E. Gray, 1857

Runcina australis

Runcina katipoides