Goniodoris nodosa (Montagu, 1808)

December 1999.
South Gortein Reef, Loch Fyne on the west coast.
This solitary animal 6 mm long was found on the silty smooth rock surface at 14 metres.

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

 nudibranchs of the british isles sea slug forum