Fjordia lineata (Loven, 1846)

9 May, 2010.
Lephinchapel, Loch Fyne on the west coast. 
33 mm animal at 16 m.
Water temperature 8.5° C.
Fuji E900 camera in Ikelite housing, 2 x Inon D-2000 flashes and 2 x Inon CU lenses.

for more information about this species go to one of the links below
OPK - Opistobranquis nudibranchs of the british isles sea slug forum