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Closed american thorny oyster is spiny shell.
Spondylus americanus thorny oyster sea shells.       American thorny oyster shell open wide on its self made hinge.       Spiny oyster shells have spikes.       American thorny oyster sea shells on coral.

American Thorny Oyster

Spondylus americanus

2 ½" - 3 ½"

Out of stock

The American thorny oyster is a very spiky sea shell. The two halves fit together perfectly and it opens and closes on its self made hinge.

Spiny oysters are usually found adhering to rocks or other fixed objects in shallow water along the seacoasts, but are also found in brackish water in the mouth of rivers.

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