Onchidoris bilamellata (Linnaeus, 1767)
13 July, 2003.
The Yetts, Dunbar on the east coast.
Water temperature 12° C. At around 6 metres there were many patches
of animals with their spawn on the rocky reef. Patches of spawn and nudibranchs
were also seen at the adajcent reefs at Johnston's Hole, 800 mertres to
the east. Another mass spawning event.
Olympus C-2020Z in Olympus PT-010 housing with +4 dioptre using the internal