Eubranchus farrani (Alder & Hancock, 1844)

08 July, 2001.
Manse reef at Ballachulish, Loch Leven on the west coast. In the shallows at 3 metres, a 20 mm long animal in the white morph colouring.
Nikonos 5 with 1:1 extension tube on 35 mm lens and Ikelite 50 flash.