Opisthobranch from the Black Sea.
October 29, 2002
From: Alex Kurakin
Note: Ercolania funerea Costa 1867 is a junior synonym of Ercolania viridis Costa, 1866. All messages have been moved to that species page. See discussion - 7 June 2003.
Dear Dr. Rudman.
I am a biologist from Odessa (Ukraine). I record videos about life and habitats of the Black Sea. While videoing last year I found some kind of Nudibranch. According to the Guide of Black Sea's mollusk it looks likeStiliger bellulus, but it has many more cerata than S. bellulus.
I am sending you some video frames in hope that you give me some help in its identification. If needed I could send information about the place where I found it, and its morphology and feeding behaviour.
Thank you ever so much for taking my questions into consideration.
Best wishes,
Alexander Kurakin
kurakin@paco.net
Kurakin, A., 2002 (Oct 29) Opisthobranch from the Black Sea.. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/8300
Dear Alexander,
Your animal is a sacoglossan opisthobranch which are herbivorous 'cousins' of the carnivorous nudibranchs. In you photos I can see a hint of filamentous green algae. If that is what your slug is feeding on it is unlikely to be the egg-eating Stiliger bellulus. From you photos it does seem to be a species of Stiliger. I have no published scientific infomation available to me on the Black Sea opisthobranch fauna and I don't know of a species with this colour from the Mediterranean. Hopefully someone more familiar than I am with the sacoglossans of the region will be able to identify your animal. In the mean time it would be interesting to have a little background information on where and when you found it, what it was feeding on, and its length.
Best wishes,
Bill Rudman
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