Edmundsella pedata (Montagu, 1815)

21 August, 2002.
Dubh Sgeir, Firth of Lorne on the west coast. 
At 15 metres, a 50 mm animal on red algae.
Nikon 90SX with 60mm lens in Subal housing and housed SB26 flash.

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