- quahog, quahaug, hard-shell clam, round clam, Venus mercenaria, Mercenaria mercenaria - an edible American clam
--1 is a kind of clam
--1 is a member of Venus, genus Venus
--1 has parts: quahaug, quahog, hard-shell clam, round clam
--1 has particulars: littleneck, littleneck clam; cherrystone, cherrystone clam