southern scup vs porgy

southern scup and porgy both are nouns.

Word	Noun	Adjective	Verb	Adverb
southern scup	Yes	No	No	No
porgy	Yes	No	No	No

As nouns, porgy is a hypernym of southern scup; that is, porgy is a word with a broader meaning than southern scup:

southern scup: porgy of southern Atlantic coastal waters of North America
porgy: important deep-bodied food and sport fish of warm and tropical coastal waters; found worldwide

southern scup (noun)	porgy (noun)
porgy of southern Atlantic coastal waters of North America	important deep-bodied food and sport fish of warm and tropical coastal waters; found worldwide
	lean flesh of fish found in warm waters of southern Atlantic coast of the United States