Okenia nodosa (Montagu, 1808)

January 2000.
Lephinchapel Reef, Loch Fyne.
Several of these pretty little dorids were found crawling over the smooth rock face on the top surfaces of the reef at around 8 metres.

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

nudibranchs of the british isles sea slug forum