Jorunna tomentosa (Cuvier, 1804)

1 October, 2010.
Island Rock, Loch Hourn on the west coast. 
35 mm animal at 16 m on vertical rock wall.
Water temperature 12° C.
Fuji E900 camera in Ikelite housing, 2 x Inon D-2000 flashes and Inon CU lens.

for more information about this species go to one of the links below
OPK - Opistobranquis nudibranchs of the british isles sea slug forum