Polycera quadrilineata(Müller, 1776)

19 October, 2012
Lephinchapel, Loch Fyne on the west coast.
2.5 mm juvenile animal at 15 metres. Water temperature 12° C.
Sony NEX-5 in Nauticam housing, 18-55mm lens, SubSee +10 dioptre and 2 x Inon D-2000 flashes.

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

 nudibranchs of the british isles sea slug forum