13 December, 2012.
Finnart Loch Long on the west coast.
45 mm animal at 8.6 metres. 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