Originally Posted by 1journeyman
As I understand it, they are the same clams, just different sizes. I believe they are all actually Quahogs.
my bad your right, I was thinking little necks were regular steamers wich could be any of four species,The four clam species generally called "steamers," are Manilas, native littlenecks (quahog), cockles, and butter clams.
The hard clam has many alternative names in addition to quahog. It is also known as the Northern Quahog, round clam or chowder clam. Furthermore, in fishmarkets there are specialist names for different sizes of hard clam, corresponding to their different culinary uses. The smallest clams are called littlenecks, medium clams are called cherrystones, and the largest are called quahogs or chowder clams. Topnecks are clams that fall between littlenecks and cherrystones, though this designation is seldom used except in markets. Of all these names, the most distinctive is Quahog (pronounced "KO-hog", IPA /kohɑɡ/ (never as "kwag", or "kwa-HOG" IPA /kwɑhɑɡ/). This name comes from the Narragansett word "poquauhock" (the word is similar in Wampanoag and some other Algonquian languages), and as New England Indians made valuable beads called wampum from the shells (especially the purple color), the species name mercenaria is related to the Latin word for "money".