Eubranchus farrani (Alder & Hancock, 1844)

9 April, 2006.
Bogha Na Fionn-Aird, Island of Muck on the west coast. Found on the kelp at 15 metres, a 12 mm animal in 7° C water.
Olympus 5050 camera in PT-015 housing, 2 x Inon D-2000 flashes and CU lens.