Acanthodoris pilosa (Abildgaard in Müller, 1789)

24 April, 2002.
Rubh Ruadh, Loch Hourn on the west coast.
Water temperature 8° C at 15 metres, a 30 mm long individual 
Nikon 90SX with 60mm lens in Subal housing and housed Nikon flash.

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