Duvaucelia lineata (Alder & Hancock, 1848)

7 April, 2018.
Rubh Ruadh, Loch Hourne on the west coast .
15 mm animal at 15 metres
Water temperature 5C.
Sony NEX-5 in Nauticam housing, Zeiss 50 mm macro 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