Hero formosa (Loven, 1841)

January 2000.
Loch Fyne on the west coast; Lephinchapel Reef at 20 metres on the smooth silty rock surface to the north side of the reef.
This rare wee animal was mistaken for a small clump of Dead man's fingers (Alcyonium digitatum) but was identified later when the slides were developed.

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