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Reverse Coiled Busycon perversum (Linnaeus, 1758) Lightning Whelk |
| Reverse coiled specimen on the left and normally coiled specimen on the right |
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| Normally coiled specimen on the left and reverse coiled specimen on the right |
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Buried in the sand, Mayport Naval Station Beach, Duval County, Florida 5/5/2012. The reverse coiled specimen measures 61 mm. |
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