Jorunna tomentosa (Cuvier, 1804)

24 August, 2017.
Rubha Ruadh, Loch Nevis on the west coast .
28 mm animal at 28 metres.
Water temperature 13°C.
Sony α6000  in Nauticam housing, 50 mm Zeiss 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