beachcomber

The Atlantic surfclam -- its shell well-known to beachcombers in the northeastern U.S. -- is one of the most common species of bivalves in the western Atlantic Ocean.

There are border crossings on both ends of this saltwater haven, where shallow depths and vast tidal swings generate warm waters that attract beachcombers and birders alike.

With his long face, heavy glasses and thinning hair, he padded around the office like a beachcomber in old sneakers, baggy pants and rumpled polo shirts, schmoozing with the staff.

The remains of Sinbad were found on a beach by beachcomber Tracey Williams.

By comparison, the shell of a modern mollusk, made of calcium carbonate, cracks easily beneath a beachcomber’s feet.