Jorunna tomentosa (Cuvier, 1804)

23 May, 2004.
Rubh a Chairn Mhor, Loch Ailort on the west coast. 
Found at 10 metres in 11° C water. A 40mm single animal on a boulder among kelp.
Olympus 5050 in Olympus PT-015 housing with Nikonos 105 flash in slave mode.

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