What's the difference between a clam and an Quahog?

Chef's answer
The Native American name for the hard shell clam (Mercenaria mercenaria) is Quahog (also spelled quahaug, quohog, and others) and the name is unique to the Cape and Islands as well as Rhode Island. ... Just to confuse matters further, the younger, smallest (barely legal size) quahog is designated Littleneck..
Frequently asked Questions 🎓
The Native American name for the hard shell clam (Mercenaria mercenaria) is Quahog (also spelled quahaug, quohog, and others) and the name is unique to the Cape and Islands as well as Rhode Island. ... Just to confuse matters further, the younger, smallest (barely legal size) quahog is designated Littleneck..
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