Very thick shell, white, yellow or brownish up to 1¼ inches long. Feeds upon barnacles and other shellfish. Colour of shell indicates their diet.
Found at Pembrey Beach, Carmarthenshire.
Very thick shell, white, yellow or brownish up to 1¼ inches long. Feeds upon barnacles and other shellfish. Colour of shell indicates their diet.
Found at Pembrey Beach, Carmarthenshire.