Goniodoris nodosa (Montagu, 1808)

12 August, 2014.
The Rondo wreck, Sound of Mull on the west coast .
5 mm animal on the prop shaft liner flange at 9 metres.
Water temperature 13°C.
Sony α6000  in Nauticam housing, 18-55mm lens, 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