Fjordia lineata (Loven, 1846)

21 April 2013.
Souh Gorein, Loch Fyne on the west coast.
25 mm animal at 12 m. Water temperature 7° C.
Sony NEX-5 in Nauticam housing, 18-55mm lens with SubSee +10 dioptre 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