Doto dunnei Lemche, 1976

18 June, 2006.
12.9 Mile Mark, Loch Fyne on the west coast. 
At 11 metres in 12 °C water, a pair of 6 mm long animals with spawn.
Fuji E900 in Ikelite housing with 2 x DML-2 CU and Inon D-2000 flash.

for more information about this species go to one of the links below
OPK - Opistobranquis nudibranchs of the british isles sea slug forum