6 March 2013.
Inverkip Pier, Firth of Clyde on the west coast.
2 x 6 mm animals with spawn on a piece of kelp blade caught up by urchin at 8 m.
Water temperature 6.5° C.
Sony NEX-5 in Nauticam housing, 18-55mm lens with SubSee +10 dioptre and 2 x Inon D-2000 flashes.
for more information about this species go to one of the links below