Nudibranchs and other Sea Slugs

(Oregon to Southeast Alaska)

Click on the name of the Order to view the species within that category.
A representative sampling of species for each family are shown
to give an example of the characteristics exhibited by that group.













Hermaeidae
Aplysiopsis enteromorphae Hermaea oliviae
Sapsucker
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Haminoeidae
Haminoea japonica
Bubble Shells
Aglajidae
Aglaja ocelligera Melanochlamys diomedea
Aglaja
 
Acteonidae
Rictaxis punctocaelatus
Barrel Shell
Order Cephalaspidea

Superfamily Acteonoidea







Limapontiidae
Olea hansineensis Placida dendritica
Hansine's Egg Eater / Sapsucker

Onchidorididae
 Acanthodoris hudsoni Acanthodoris atrogriseata Acanthodoris lutea Acanthodoris nanaimoensis Adalaria proxima Onchidoris bilamellata
Onchidorids

Pleurobranchidae
Berthella chacei Berthella strongi
Sidegills


Aplysiidae
Phyllaplysia taylori
Zebra Leafslug


Order Pteropoda

Order Aplysiidae

Clionidae
Clione limacina
Sea Angel


Cymbuliidae
Corolla spectabilis
Sea Butterfly



 Order Systellommatophora


 Onchidiidae
Onchidella borealis
Leather Limpet




Order Nudibranchia - Suborder Doridina



Plakobranchidae
Elysia hedgpethi
Sapsucker
Superorder Sacoglossa


Order Pleurobranchomorpha


 Discodorididae
Diaulula odonoghuei Geitodoris heathi Montereina lentiginosa Peltadoris nobilis Rostanga pulchra
Dorids and Sea Lemons

Polyceridae
Palio dubia Polycera tricolor Limacia cockerelli Triopha modesta Triopha maculata
Multi-colored Dorids

 





Order Nudibranchia - Suborder Cladobranchia  (Page 1)



Corambidae
Corambe steinbergae Loy thompsoni
Corambids







Many southern species of nudibranchs may be spotted in the Pacific Northwest during El Niņo Events.   See our page covering El Niņo Event Range Shifts.
Tethyidae
Melibe leonina
Lion's Melibe
 
Arminiidae
Armina californica
 Striped Nudibranch


Dironidae
Dirona albolineata Dirona pellucida Dirona picta
Dirona  

Aegiretidae
Aegires albopunctatus
Aegires
Goniodorididae
Ancula gibbosa Okenia vancouverensis
Ancula            Okenia










Cadlinidae
 Aldisa albomarginata
Aldisa cooperi Cadlina luteomarginata Calina modesta
Aldisa & Cadlina








Calycidorididae
Diaphorodoris lirulatocauda
Diaphorodoris

Nudibranch Egg Masses
nudibranch eggs Nudibranch eggs nudibranch eggs nudibranch eggs Nudibranch eggs Nudibranch eggs
Samples of some nudibranch egg masses
(click on photo to enlarge)

Actinocyclidae
Hallaxa chani
Dorid

Gastropteridae
Gastropteron pacificum
Stomach Wing

Cumanotidae
Cumanotus fernaldi
Aeolids




Tritoniidae
Tochuina gigantea Tritonia exsulans Tritonia festiva
Orange-Peel Nudibranch and Tritonias


Dorididae
Doris montereyensis Doris odhneri
Dorids and Sea Lemons




This page last revised: 9-21-2022

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Aeolidiidae
Aeolidia papillosa Cerberilla mosslandica
Aeolids

Dendronotidae
Dendronotus albus Dendronotus albus Dendronotus iris Dendronotus rufus Dendronotus subramosus
Dendronotus







Dotidae
Doto cf amyra Doto columbiana Doto kya
Doto
 





Dendrodorididae
Doriopsilla fulva
Dorid












Order Nudibranchia - Suborder Cladobranchia  (Page 2)

Unidentiidae
Pacifia amica
Aeolid





Trinchesiidae
Catriona columbiana Diaphoreolis flavovulta Diaphoreolis lagunae Trinchesia albocrusta Zelentia fulgens 
Aeolids








Janolidae
Antiopella fusca Janolus gelidus
Janolus
Reference list for Nudibranch pages









Abronicidae
Abronica abronia
Aeolid

Cuthonidae
Cuthona divae
Cuthona
Cuthonellidae
Cuthonella cocoachroma Cuthonella concinna
Aeolids










Eubranchidae
Eubranchus rustyus
Aeolid



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All material posted on this site may be used for educational or non-commercial use provided this web site is duly credited as being the source of the material.  Copyright of all images remains with the originator.  For the use of photos, please request permission through one of the contact listings.
Citation:  Pacific Northwest Shell Club, www.PNWSC.org





Coryphellidae
Coryphella verrucosa Himatina trophina Orienthella trilineata
Aeolid
Apataidae
Apata pricei
Aeolid
Diaphanidae
Diaphana californica
Diaphana









Acteocinidae
Acteocina culcitella   
Barrel-bubble Shells

Flabellinopsidae
Flabellinopsis iodinea
Aeolid


Paracoryphellidae
Ziminella japonica
Aeolid





















           












Myrrhinidae
Hermissenda crassicornis Hermissenda opalescens
Opalescent Nudibranch