Okenia nodosa (Montagu, 1808)

25 March, 2001.
At Lephinchapel Reef, Loch Fyne on the west coast.

A 10 mm long animal crawling across the muddy rock at 16 metres in 7° C water.
Photographed with 2:1 close up extension tubes on Nikonos 5 and single Ikelite 50 flash.

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

nudibranchs of the british isles sea slug forum