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Flat-tip Piddock, Penitella penita

Flat-tip piddock, Penitella penita

A few days ago on the TOS facebook page I posted the photo above, along with this challenge: “Here’s a shell you don’t see on just any sandy beach. Any guesses about what it is?” There were some great guesses but nobody really nailed it. This is a piddock shell, probably the flat-tip piddock, Penitella penita. Piddocks are bivalves – mollusks with two…