Cuthonella concinna (Alder & Hancock, 1843)

16 May, 2010.
A1 reef, Firth of Lorne on the west coast. 
A 12mm animal at 20 m. Water temperature 9° C.
Fuji E900 in Ikelite housing, 2 x Inon CU lenses and 2 x Inon D-2000 flashes.

for more information about this species go to one of the links below
Nudibranchs of the British Isles Sea Slug Forum