Dendronotus from Sabah, Malaysia

October 2, 2008
From: Sylvie Grall

Dear Bill,
Is this seaslug a variant of Bornella stellifer? It doesn't look like it.
I've been through all the sources I know of but couldn't find this particular design.

Locality: Mabul reef, 12 m, Sabah, Malaysia, China Sea, August 2008, muddy. Length: 3 cm. Photographer: Sylvie Grall.

Thank you very much for your help.

Sylvie Grall, 2008 (Oct 2) Dendronotus from Sabah, Malaysia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Sylvie,
This is a relative of Bornella which I have been calling Dendronotus? on the Forum because it looks like a species of Dendronotus but all the species I am familiar with are from cold northern waters. Now that I have two other unnamed species on the Forum I think I should br brave and start calling this tropical animal Dendronotus sp. 1. The brown spots on the body and orange rhinophores seem to be characteristic. Hopefully someone will look at its anatomy soon and sort out just what it is.

Best wishes,
Bill Rudman

Rudman, W.B., 2008 (Oct 2). Comment on Dendronotus from Sabah, Malaysia by Sylvie Grall. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Dendronotus sp. 1

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