Facelina annulicornis (Chamisso & Eysenhardt, 1821)

27 August, 2018.
Rubh a Chroisein, island of Muck on the west coast .
25 mm animal at 20 metres. One of 5 specimens seen at similar depths on this dive.
Water temperature 7°C.
Sony α6000  in Nauticam housing, 50 mm Zeiss lens and 2 x Inon D-2000 flashes.

for more information about this species go to one of the links below
OPK - Opistobranquis

nudibranchs of the british isles sea slug forum