1. Akera bullata. Height 31mm. Shell thin, flexible, fragile, translucent, with orange-brown periostracum. Only sculpture many fine prosocline growth lines. Aperture almost as long as height. Seawater pond, Oban, Scotland. April 2010. Leg. Clive Craik.
2. Akera bullata. Height 31mm. Shell thin, flexible, fragile, translucent, with orange-brown periostracum. Only sculpture many fine prosocline growth lines. Aperture almost as long as height. Seawater pond, Oban, Scotland. April 2010. Leg. Clive Craik.

Akera bullata. Height 31mm. Shell thin, flexible, fragile, translucent, with orange-brown periostracum. Only sculpture many fine prosocline growth lines. Aperture almost as long as height. Seawater pond, Oban, Scotland. April 2010. Leg. Clive Craik.