Pea Mussel

Pea Mussel

Observation - Pea Mussel - UK and Ireland. Description: Seen in garden pond. About 8-10 mm wide. Shape similar to this observation: http://www.ispot.org.uk/node/49649?nav=search Colouring very different. Same species?

Seen in garden pond.
About 8-10 mm wide. Shape similar to this observation:
http://www.ispot.org.uk/node/49649?nav=search
Colouring very different. Same species?