Acanthodoris pilosa (Abildgaard in Müller, 1789)

14 June 2013.
Sgeir A'Chapuill, Ascrib Isles, Skye on the west coast.
40 mm animal at 20 metres. Water temperature 9.5° C.
Sony NEX-5 in Nauticam housing, 18-55mm lens with SubSee +10 dioptre and 2 x Inon D-2000 flashes.
for more information about this species go to one of the links below
OPK - Opistobranquis nudibranchs of the british isles sea slug forum