Up here in lobster country the locals prefer soft shell lobsters known as "shedders". When the lobsters come in to the shallow water they molt to allow for growth, shedding their hard shell and exposing a new soft/flexible exoskeleton that hardens over a few weeks. You can't eat the outside like a soft shell crab but they are easy to get into without tools and the meat is sweeter. Also, they cost substantially less than hard shell lobsters, which the restaurants prefer, tourists like the experience of cracking into them and making a mess.
Of course, lobster rolls are popular, as well as chowders - clam, haddock fish, corn, etc.
The local clams are called soft shell clams and are a whole belly clam, unlike the hard shell clams like quahogs, cherrystones, etc, the insides of which look more like mussels. They're popular for steamers but I prefer them fried
You call them Quahog's I thought that was just a RI thing, I know most people call them little necks or hard shell clams, I like the soft shell whole bellies, either steamed or fried. When I go up to Kittery, I like to go a little farther north to the Maine Diner for fried clams or the lobster roll, I also used to go to the Clam Shack, I can't remember the name of the town, It was just before a bridge, it was a walk up place, just open in the summer, I think the guy who owned it was a school teacher, I haven't been there in years, I remember now Kennebunk.