Spotted Ancula from eastern Russia

January 13, 2006
From: Alexei Chernyshev

Dear Bill,
Alexei Shpatak photographed a single specimen of the colorless goniodoridid (or polycerid ?) in Olga Bay (Japan Sea). Can you help me know the generic and specific name of this nudibranch?

Locality: Olga Bay, Russia. Japan Sea. Depth: 3-5 metres. Length: about 15 mm. August 2005. among algea and hydroids. Photographer: Shpatak A.

Sincerely yours,
[for Chernyshev, AV., & Shpatak A.]

Chernyshev, A.V. & Shpatak A. , 2006 (Jan 13) Spotted Ancula from eastern Russia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from

Dear Alexei,
This is an interesting find. If you have a look at the Ancula gibbosa Fact Sheet you will see there is a continuing discussion on just how many species there are within this group. In particular, have a look at the following messages: #14037; #14220; #2404,  which all illustrate a white-spotted animal which must surely be the same as yours.
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Jan 13). Comment on Spotted Ancula from eastern Russia by Alexei Chernyshev. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from


Ancula gibbosa

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