California Opisthobranchs

The following is by no means a complete listing of the species of opisthobranch mollusks from the waters of California. These are simply some of the animals we happened to see on our limited number of dives primarily around the islands of Anacapa, Santa Cruz, Santa Rosa, and San Miguel. There are other web sites that cover all these species in much greater depth. In particular, Mike Miller's Slug Site and the Australian Museum's Sea Slug Forum by Bill Rudman have all of these species and many more. There is also printed literature available on these wonderful creatures; the premiere reference on California nudibranchs was David Behrens' Pacific Coast Nudibranchs, now expanded to Nudibranchs and Sea Slugs of the Eastern Pacific by David Behrens, Alicia Hermosillo, Karin Fletcher and Gregory Jensen..

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Chromodorididae


Felimare californiensis


Felimare porterae

Felimida macfarlandi

Cadlinidae


Cadlina flavomaculata


Cadlina limbaughorum

Cadlina luteomarginata

Cadlina modesta

Dorididae


Conualevia alba

Discodorididae


Baptodoris mimetica


Diaulula sandiegensis

Jorunna pardus

Peltodoris mullineri

Peltodoris nobilis

Rostanga pulchra

Thordisa bimaculata

Dendrodoridiae


Doriopsilla albopunctata

Goniodorididae


Ancula pacifica

Polyceridae


Limacia mcdonaldi


Polycera atra

Triopha catalinae

Triopha maculata

Aegiretidae


Aegires albopunctatus

Arminidae


Armina californica

Proctonotidae


Antiopella barbarensis

Tritoniidae


Tritonia festiva

Dendronotidae


Dendronotus venustus

Dotidae


Doto
sp.

Flabellinidae


Coryphella trilineata


Flabellinopsis iodinea

Pacifia goddardi

Tergipedidae


Cuthona divae

Facelinidae


Austraeolis stearnsi


Noumeaella rubrofasciata

Phidiana hiltoni

Myrrhinidae


Hermissenda opalescens

Aeolidiidae


Anteaeolidiella chromosoma


Anteaeolidiella oliviae

Bullidae


Bulla gouldiana

Aglajidae


Aglaja ocelligera


Navanax inermis

Navanax polyalphos

Aplysiidae


Aplysia californica


Aplysia vaccaria

Pleurobranchidae


Boreoberthella californica


Berthellina ilisima

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