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Dinocardium robustum (John Lightfoot, 1786) Atlantic Giant Cockle |
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At the base of granite rocks of the south St. Johns River jetty at Mayport Naval Station beach, 1/8/2008 (about 80 mm.) |
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Dinocardium robustum (John Lightfoot, 1786) Atlantic Giant Cockle |
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At the base of granite rocks of the south St. Johns River jetty at Mayport Naval Station beach, 1/8/2008 (about 80 mm.) |
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