Facelina bostoniensis (Couthouy, 1838)

24 October, 2010.
Cormonochan Point, Loch Goil on the west coast.
22 mm animal at 20 metres. Water temperature 12° C.
Fuji E900 in Ikelite housing with Inon CU lenses 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