Eubranchus tricolor Forbes, 1838

12 October, 2008.
South Gortein, Loch Fyne on the west coast.
Photographed later in the lab, the 25 mm animal was found at the base of Neretesia ramosa hydroid at 22 m in 12° C water.
Fuji E900 camera, 2 x Inon D-2000 flashes and 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