Common Mussel (Mytilus edulis) Exmouth, Devon. August 2019 © Pete Hillman.
Chequered Carpet Shell (Ruditapes decussatus), August 2019, Exmouth, Devon, England. © Pete Hillman.
Please click on images for full definition. Photograph of Common Mussel (Mytilus edulis) taken April 2013, Llandudno, Wales. Camera Nikon Coolpix P500. © Pete Hillman 2013.
I have shown the two gaper shells on one post to illustrate how different they are, beginning with the Sand Gaper above. Sand Gaper (Mya arenaria) A large and robust bivalve, the shell is oval in shape, the anterior end rounded, the posterior end more pointed. It has concentric ridges and is off-white, grey or... Continue Reading →
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... Continue Reading →
Cerastoderma edule The shell of the Common Cockle is cream to pale yellow or brownish, and it has 22-28 radiating ribs crossed by prominant concentric ridges which may bare short spines. Length up to 5cm. It is found in muddy, sandy and fine gravel shores, from the middle to lower shore. Utilising a muscular foot,... Continue Reading →
Scrobicularia plana The shell has numerous fine, concentric rings and grooves. It is dirty white, yellowish or greyish in colour, and is flat, thin and delicate in form. Length 6.5cm. It is found in sheltered, brackish habitats, like estuaries and muddy shores where it burrows up to 20cm, leaving behind a star-shaped tell-tale impression on... Continue Reading →
Chamelea gallina The colour of the shell is pale cream or yellowish, usually marked with three prominent radiating brown bands. It is fairly thick and has fine concentric ridges. Length 4cm. It is found buried in the lower shore to sublittoral, and it can live up to 10 years. Common and widespread on all coasts,... Continue Reading →