27 April, 2013.
Bark Rock, Loch Fyne on the west coast.
15 mm animal at 12 metres. Water temperature 7° 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