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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 physis

Micromelo undatus
     

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 ampulla
       

Superfamily: Diaphanoidea  Odhner, 1914
Family: Diaphanidae  Odhner, 1914


Colpodaspis thompsoni
       

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


Aliculastrum cylindricum

Atys naucum

Diniatys dubia

Haminoea ovalis
 

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


Chelidonura amoena

Chelidonura fulvipunctata

Chelidonura hirundinina

Chelidonura pallida

Chelidonura punctata

Chelidonura sp. 01

Chelidonura varians

Noalda sp. 01

Odontoglaja guamensis

Philinopsis ctenophoraphaga

Philinopsis falciphallus

Philinopsis gardineri

Philinopsis lineolata

Philinopsis pilsbryi

Philinopsis speciosa

Family:  Gastropteridae  Swainson, 1840


Gastropteron bicornutum

Sagaminopteron ornatum

Siphopteron sp. 02

Siphopteron tigrinum
 

 
 
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