Atlantic Surfclam
Spisula solidissima · Also known as: surf clam, hen clam
Large ocean clam of Mid-Atlantic sands. Common empty shells on Ocean City beaches and a major commercial species offshore.
Quick facts
| Group | Bivalve |
|---|---|
| Likelihood nearby | ★★★★☆ |
| Habitats | Ocean beach, Offshore / ocean, Inlet, Assateague State Park, Assateague National Seashore |
| Seasons (this coast) | year-round |
How to recognize them
- Large, triangular-oval shells (often 5–8+ inches) with a smooth yellowish periostracum when fresh.
- Heavy white valves wash ashore after storms; live animals stay buried in surf-zone sand.
Biology notes
- Filter-feeders of sandy bottoms from beach to continental shelf.
- Supports a large Mid-Atlantic fishery for strips, chopped clam, and bait.
Where to see them around Ocean City
- Ocean City and Assateague beaches after northeast storms—big white shells in the wrack.
- Commercial boats and fish markets; rarely dug by hand in the heavy surf.
When to look
- Shells year-round; storm windows after winter and spring systems.
Viewing tips & etiquette
- Best “find” is often an empty valve—leave live clams if you somehow dig one in the wash.
