March 29, 2010
From: Lawrence Neal
Concerning message #23323:
I wonder if you have any thoughts on this little nudibranch from the Andaman Sea? Perhaps a species of Thorunna? The shape and size are in the right ball park.
It was crawling on sponge- and sediment-covered rocks quite close to the shore. Several other small species of Thorunna, Noumea and Hypselodoris are at home in this area too.
Locality: Tablamu, 6 metres, Phangnga, Thailand, Andaman Sea, 27 February 2010, Rocky shoreline. Length: Approx. 8 mm. Photographer: Lawrence Neal.
All the best,
firstname.lastname@example.orgNeal, L., 2010 (Mar 29) Thorunna sp.? from the Andaman Sea. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/23331
From the orange mark on the front of the mantle this is most probably a species of Thorunna, but if so, it does not seem to fit any existing species - even allowing for a bit of variation. It could well be a juvenile, but even so it doesn't seem to fit.
I think I will call it Thorunna sp. 3 until we know more.