Facelina auriculata (Müller, 1776)

24 June, 2015.
Auliston Cliff, Loch Sunart on the west coast .
50 mm animal at 10 metres.
Water temperature 10°C.
Sony α6000  in Nauticam housing, 18-55 mm 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