cherrystone clam vs quahaug

cherrystone clam and quahaug both are nouns.

Word	Noun	Adjective	Verb	Adverb
cherrystone clam	Yes	No	No	No
quahaug	Yes	No	No	No

As nouns, quahaug is a hypernym of cherrystone clam; that is, quahaug is a word with a broader meaning than cherrystone clam:

cherrystone clam: a half-grown quahog
quahaug: an edible American clam; the heavy shells were used as money by some American Indians

Other hypernyms of cherrystone clam include hard-shell clam, hard clam, Mercenaria mercenaria, quahog, round clam, Venus mercenaria.

As nouns, quahaug is a hypernym of cherrystone clam; that is, quahaug is a word with a broader meaning than cherrystone clam:

cherrystone clam: small quahog larger than a littleneck; eaten raw or cooked as in e.g. clams casino
quahaug: Atlantic coast round clams with hard shells; large clams usually used for chowders or other clam dishes

Other hypernyms of cherrystone clam include hard-shell clam, quahog, round clam.

cherrystone clam (noun)	quahaug (noun)
a half-grown quahog	an edible American clam; the heavy shells were used as money by some American Indians
small quahog larger than a littleneck; eaten raw or cooked as in e.g. clams casino	Atlantic coast round clams with hard shells; large clams usually used for chowders or other clam dishes