Dendrodoris? from Red Sea

November 18, 2005
From: Sven Kahlbrock

I.m working as diving instructor at Hurghada in the Red Sea, Egypt. Last week we found this probable Dendrodoris. I would like to know if there is any further information that you have about this species. At  first it looked like Dendrodoris tuberculosa, but the tubercles are not that big.

Locality: Hurghada, El Eruk, Egypt. Red Sea. Depth: 10 m. Length: ca. 20 cm. 8 november 2005. sand bottom. Photographer: Marc ?

Thank you for the help, with best regards
Sven Kahlbrock

Kahlbrock, S., 2005 (Nov 18) Dendrodoris? from Red Sea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Sven,
This is Sebadoris nubilosa. It has a much softer body than  Dendrodoris tuberculosa and as you noticed, it is covered in pointed papillae, rather than large tubercles. It can break off part of its mantle when threatened, and can also swim. It is usually well camouflaged on coral sand and coral rubble backgrounds.
Best wishes,
Bill Rudman

Rudman, W.B., 2005 (Nov 18). Comment on Dendrodoris? from Red Sea by Sven Kahlbrock. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Sebadoris nubilosa

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