Can I use Littlenecks and Steamers interchangeably?

What is the difference between Littlenecks and Cherrystones? If you order stone or cherry stone mussels in a restaurant, you’re eating the same kind. The difference between the two is simply a matter of size. Mercenaria mercenaria, the hard-shell clam, is also known as the quahog. Native Americans used the shells as wampum. What are…