18 Akera bullata

18 Akera bullata

© J.C.A. Craik. Right: the simultaneous hermaphrodite A. bullata occasionally mates in curved chains of individuals; each acting as a male to the one in front and as a female to the one behind. Aquarium of Scottish Association for Marine Science, Oban
Left: These are mating partially concealed below the surface of the sediment. Soakaway pond, Oban, Scotland. April 2010.

marinvert.senckenberg.science/image-browse/