1. Akera bullata. Simultaneous hermaphrodite, mates in curved chains of individuals, each acting as male to one in front and as female to one behind. Often partially concealed below surface of sediment. Seawater pond, Oban, Scotland. April 2010.
2. Akera bullata. Simultaneous hermaphrodite, mates in curved chains of individuals, each acting as male to one in front and as female to one behind. Often partially concealed below surface of sediment. Seawater pond, Oban, Scotland. April 2010.

Akera bullata. Simultaneous hermaphrodite, mates in curved chains of individuals, each acting as male to one in front and as female to one behind. Often partially concealed below surface of sediment. Seawater pond, Oban, Scotland. April 2010.