Cuthona sp.(?) from eastern Russia

January 17, 2006
From: Alexei Chernyshev

Another nudibranch was photographed by Alexei Shpatak in Japan Sea. We propose that it belongs to Cuthona.

Locality: Olga Bay, Russia, Japan Sea. Depth: 3-5 metres. Length: 12 mm, August 2005. on an ascidian. Photographer: A. Shpatak

Alexei Chernyshev

tsher@bio.dvgu.ru

Chernyshev, A.V., 2006 (Jan 17) Cuthona sp.(?) from eastern Russia. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15552

Dear Alexei,
At first I wondered whether this was a  form of Cuthona yamasui. [see message #6927], a species usually assoicted with the  stinging hydroid Aglaophenia. However on closer examination of your photo I see that the white on the cerata is a longitudinal band down one side only rather than the whole of the ceratal wall. I don't recognise this species off-hand, but perhaps someone from Japan or perhaps the west coast of Nth America will recognise it.
Best wishes,
Bill Rudman

Rudman, W.B., 2006 (Jan 17). Comment on Cuthona sp.(?) from eastern Russia by Alexei Chernyshev. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15552

Factsheet

Unidentified - North West Pacific (Japan, China)

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