Eubranchus pallidus (Alder & Hancock, 1842)

10 July, 2015.
The wreck of the FV Cyelse, Barra in the Outer Hebrides on the west coast of Scotland.
8 mm animal at 12 metres on kelp. Water temperature 11°C.
Sony ?6000  in Nauticam housing, Zeiss 50 mm macro lens and 2 x Inon D-2000 flashes.