Hard Clam
Mercenaria mercenaria · Also known as: quahog, littleneck, cherrystone, chowder clam
The classic Mid-Atlantic quahog, from littlenecks to chowders on menus, with live clams buried in bay sand around Ocean City.
Quick facts
| Group | Bivalve |
|---|---|
| Likelihood nearby | ★★★★★ |
| Habitats | Coastal bays, Ocean beach, Inlet, Assateague State Park, Assateague National Seashore |
| Seasons (this coast) | year-round |
How to recognize them
- Thick, rounded shells with concentric growth rings; purple interior hinge common on larger quahogs.
- Siphon holes (“show”) appear as small paired openings in wet sand at low tide.
Biology notes
- Burrows in sandy-mud flats; filter-feeds through twin siphons.
- Market names track size: littleneck (small), cherrystone, topneck, chowder (largest).
Where to see them around Ocean City
- Coastal bay flats near Assateague and Isle of Wight at low tide—watch for siphon shows.
- Seafood markets and clam shacks along Coastal Highway and downtown.
When to look
- Year-round; easiest to spot on bay flats on calm low tides.
Viewing tips & etiquette
- Rake gently and refill holes if you dig under a licensed recreational harvest.
- Check Maryland DNR shellfish closures before eating anything from the bay.
