Polycera quadrilineata (Müller, 1776)

16 May, 2004.
Kentallen Reef, Loch Linnhe on the west coast.
Water temperature 10° C at 9metres. This single animal, approx 12mm long and with a deformed rhinophore on the right, was found feeding on the bryazoan Membranipora membranacea just beginning to get growing on a kelp stype.
Olympus 5050 in Olympus PT-015 housing with Nikonos 105 flash in slave mode.

for more information about this species go to one of the links below
scottish nudibranchs nudibranchs of the british isles sea slug forum