Facelina auriculata (Müller, 1776)

13 April, 2003.
Godag reef off the island of Muck in the Inner Hebrides on the west coast.
Water temperature 9° C at 15 metres, a 25mm long individual.
Nikon 90SX with 105mm lens in Subal housing and housed SB26 flash.

for more information about this species go to one of the links below
OPK - Opistobranquis

 nudibranchs of the british isles sea slug forum