Acanthodoris pilosa (Abildgaard in Müller, 1789)

2 June 2013.
Greenends Gully, Eyemouth on the east coast.
25 mm animal spawning on it's bryozoan, Alcyonidium diaphanum, food at 10 metres. Water temperature 8.5° 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