Goniodoris nodosa (Montagu, 1808)

16 September, 2012.
Greenends Gully, Eyemouth on the east coast.
4 mm animal at 9 metres. Water temperature 13° C.
Sony NEX-5 in Nauticam housing, 18-55mm lens with Subsea + 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