Facelina bostoniensis (Couthouy, 1838)

26 September, 2010.
Cormonochan Point , Loch Goil on the west coast.
28 mm animal, one of several, at 26 metres. Water temperature 12° C.
Fuji E900 in Ikelite housing with 2 x 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