The quahog (Mercenaria mercenaria) is also well-known as hard clam. These edible marine bivalve mollusks are widespread throughout North America.
They can be found in estuaries buried under the sand. These clams have hard-shell and have sizes varied from 1 to 4 inches wide.
Usually, their color is white to grey, with dark rings. Their meats are soft and have sweet flavor as well as salty accent.