Colpodaspis pusilla M. Sars, 1870

14 June 2013.
Nicoletta's Wall, North Harris on the west coast.
3mm animal, one of several seen at 12m. Water temperature 9.5° C.
Sony NEX-5 in Nauticam housing, 18-55mm lens, SubSee +10 dioptre and Inon D-2000 flash.
for more information about this species go to one of the links below
OPK - Opistobranquis Encyclopedia of Marine Life of Britain and Ireland Sea Slug Forum