Tylodina perversa from the Mediterranean
January 26, 2005
From: Adrian Valls
Hi,
I saw this specimen in 6 meters of water, on Posidonia, water temp aprox 14C, at 1:00PM on the Costa Brava, specifically Cala Jugadera in Cap de Creus, Spain, just south of France on the Mediterranean.13th Jan 2005
It was around 3-4 cm long, 2 cm tall and 2 wide.
The top is round and conical as seen in the blurry top view, (sorry!) but didn't seem hard. I thought it could be a mantle. The other picture is a view from behind, with our friend heading down and away from the camera.
Any help in identification would be great!
Thanks,
Adrian Valls
avalls108@hotmail.com
Valls, A, 2005 (Jan 26) Tylodina perversa from the Mediterranean. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/12955Dear Adrian,
I am pretty sure this is the opisthobranchTylodina perversa , which has a conical shell. It's a bit hard to be sure because I can't see any of the head clearly, but the shape of the one set of head tentacles, I can see, look very like those of the rhinophores of Tylodina. Tylodina is a sponge feeder, so if my identification is correct, then it is just crawling over the Posidonia.
Best wishes,
Bill Rudman
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