Aeolidia papillosa (Linnaeus, 1761)

9 December 2012.
South Gortein, Loch Fyne on the west coast.
Part of a group of animals around 35-45 mm in size on the cable at 14 m. Water temperature 10° C.
Sony NEX-5 in Nauticam housing, 18-55mm lens 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