Polycera quadrilineata (Müller, 1776)

2 September, 2007
The Slate Wreck, Sound of Mull on the west coast.
Single 12 mm animal at 14 metres feeding on the bryazoon Membranipora membranacea on the underside of a kelp blade. Water temperature 14° C.
Fuji E900 camera in Ikelite housing, 2 x Inon D-2000 flashes and 3 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