Dendronotus subramosus? from California

March 23, 2004
From: Sean Kearney

Dear Bill
Following my last message [#12493], here are photos of the other mystery animal which I think might be a Dendronotus?. It was also found in 65fsw off of Pt. Loma, San Diego, California. [March 2004].

It was in the hydroids near the Doto and Flabellina.

Thanks again.
Love your Forum.
Sean Kearney

Kearney, S., 2004 (Mar 23) Dendronotus subramosus? from California. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Sean
From the small Doto in the foreground of the upper photo this is a much larger animal than the others. It is certainly in a bad shape but it certainly has 'cerata' which fit Dendronotus and papillae around the edge of the rhinophore sheath. I have no personal knowledge of the Californian species but I read that Dendronotus subramosus is very variable in colour and has a translucent white colour form with yellow spots which would seem to fit your animal. Hopefully someone can confirm this id or suggest a better one
Best wishes
Bill Rudman

Rudman, W.B., 2004 (Mar 23). Comment on Dendronotus subramosus? from California by Sean Kearney. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

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