Southern Quahog
Mercenaria campechiensis
Markings and exact colorations may vary.
A thick, heavy clam with growth-ridged valves and a deep purple stain inside the margin.
- Typical size
- 3–6 in
- How often it turns up
- Common
- Collecting
- Check local rules
- Handling
- Safe to handle
Empty shells are fine. Live clam harvest requires open shellfish waters and a licence.
How to tell it apart
- Very thick and heavy for its size
- Concentric growth ridges, no radiating ribs
- Purple border inside the shell
Where to find these in Florida
Beaches rated very good or excellent for shells. Each page shows today’s score, the best window and access details.
- Anclote Key Preserve State Park · Tarpon Springs
- Bean Point · Anna Maria
- Beer Can Island (Greer Island) · Longboat Key
- Boca Grande Public Beach · Boca Grande
- Bowman's Beach · Sanibel
- Captiva Beach · Captiva
- Cayo Costa State Park · Cayo Costa
- Delnor-Wiggins Pass State Park · Naples
- Don Pedro Island State Park · Cape Haze
- Dr. Julian G. Bruce St. George Island State Park · St. George Island
- Gasparilla Island State Park · Boca Grande
- Gulfside City Park (Algiers Beach) · Sanibel
Found one?
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More shells in the field guide
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