Cephalaspideans and Anaspideans

This page contains some of the Cephalaspidean and Anaspidean opisthobranchs. We have not spent a lot of time searching for and photographing members of these groups, particularly the cephalaspideans, so our coverage is far from complete. Also, some of the identifications are uncertain. Unlike nudibranchs, many species in these two groups possess shells, exposed in some and internal in others, and in many cases species were originally described solely from empty shells.

Order CEPHALASPIDEA

Family ACTAEONIDAE
Acteon virgatus
Pupa alveola
Pupa sulcata

Family HYDATINIDAE
Hydatina amplustre
Hydatina physis
Micromelo undata

Family SMARAGDINELLIDAE
Phanerophthalmus cylindricus ?
Phanerophthalmus smaragdinus
Smaragdinella calyculata

Family BULLIDAE
Bulla ampulla

Family HAMINOEIDAE
Atys kuhnsi
Atys multistriatus
Atys semistriata
Atys sp. e173
Atys ? sp. e513
Diniatys dentifer
Haminoea cymbalum
Haminoea galba
Haminoea linda
Haminoea musetta
Haminoea ovalis
Haminoea sp. e269
Haminoea sp. e464b
Haminoea sp. e502
Haminoea sp. e540
Haminoea sp. e566
Haminoea sp. e569

Family AGLAJIDAE
Aglaja orientalis
Chelidonura amoena
Chelidonura fulvipunctata
Chelidonura hirudinina
Chelidonura inornata
Chelidonura sp. e436
Chelidonura ? sp. e088
Cheldonura sp. e476
Chelidonura sp. e512
Chelidonura sp. e528
Chelidonura sp. e556
Melanochlamys sp. e509
Odontoglaja guamensis
Odontoglaja ? sp. e028
Philinopsis gardineri
Philinopsis pilsbryi
Philinopsis cf pilsbryi
Philinopsis reticulata
Philinopsis sp. e489
Philinopsis sp. e516
Philine orca
aglajid sp. e300
aglajid ? sp. e326
aglajid sp. e518

Family GASTROPTERIDAE
Gastropteron cf bicornutum
Sagaminopteron nigropunctatum
Sagaminopteron psychedelicum
Siphopteron brunneomarginatum
gastropterid sp. e520

Family DIAPHANIDAE
Colpodaspis thompsoni

Family ILBIIDAE
Ilbia mariana


Order ANASPIDEA

Family APLYSIIDAE
Aplysia dactylomela
Aplysia parvula
Dolabella auricularia
Dolabrifera dolabrifera
Notarchus indicus
Stylocheilus striatus
Stylocheilus longicauda