Adblocker detetcted! It seems you are using an adblocker. Ads can be annoying, but small sites like this could not exist without some revenue from advertising. Your adblocker is also blocking the text content of this page and causing images to appear in black and white. To view this page correctly, please turn off your adblocker.
Shell up to 1½ inches, with three reddish-brown rays and concentric ridges. On one side shell slopes steeply, with slight concave outline on other side.
Found at Pembrey Beach, Carmarthenshire