Polycera quadrilineata (Müller, 1776)

8 August, 2007
Skellies Gully, St. Abbs Head on the east coast.
Mating pair of 22 mm animals on kelp stype at 8 metres.
Water temperature 13° C.
Fuji E900 camera in Ikelite housing, 2 x Inon D-2000 flashes and 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