Facelina annulicornis (Chamisso & Eysenhardt, 1821)

21 August, 2017.
Eilean Chathastal, island of Eigg on the west coast .
30 mm animal at 21 metres with spawn nearby.
Water temperature 13°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