Macoma balthica
The shell is a rounded-oval, although the posterior more angled. The colour is variable from pink to purple, yellow and white. Width 25mm.
It is found on the lower shore in muddy sand, and also in estuaries. Common and widespread.
Photographs taken June 2012, Llandudno, Wales. Camera Nikon Coolpix P500. © Pete Hillman 2012.
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