Coryphella lineata (Loven, 1846)

4 April, 2010.
South Gortein, Loch Fyne on the west coast. 
30 mm animal found on the cable at 22 m.
Water temperature 7° C.
Fuji E900 camera in Ikelite housing, 2 x Inon D-2000 flashes and Inon CU lens.

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