Three large fragments of a shell or shells of the Emperor Helmet.

I found them on top of the big shell pile that formed after the big cold front came across with stormy weather.

No other shellers seemed to have noticed them, large though they are, I suppose because they are just fragments, but this is a very notable and rather rare species here on Sanibel.

Many thanks to José Leal, the Curator of the Bailey-Matthews National Shell Museum, who kindly made these photos after I donated these shell fragments (and some other very uncommon shells) to the museum.