Facelina auriculata (Müller, 1776)

3 August, 2008.
Eagle Rock, Garvellach Islands on the west coast. 
A 35 mm animal found at 12 m. Water temperature 13° 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