Eubranchus pallidus (Alder & Hancock, 1842)

16 April, 2016.
Camus Darroch, Skye on the west coast.
5 mm animal at 19 metres. Water temperature 8°C.
Sony ?6000  in Nauticam housing, Zeiss 50 mm macro lens and 2 x Inon D-2000 flashes.