pumpkinseed vs centrarchid

pumpkinseed and centrarchid both are nouns.

Word	Noun	Adjective	Verb	Adverb
pumpkinseed	Yes	No	No	No
centrarchid	Yes	No	No	No

As nouns, centrarchid is a hypernym of pumpkinseed; that is, centrarchid is a word with a broader meaning than pumpkinseed:

pumpkinseed: small brilliantly colored North American sunfish
centrarchid: small carnivorous freshwater percoid fishes of North America usually having a laterally compressed body and metallic luster: crappies, black bass, bluegills, pumpkinseed

Other hypernyms of pumpkinseed include sunfish.

pumpkinseed (noun)	centrarchid (noun)
small brilliantly colored North American sunfish	small carnivorous freshwater percoid fishes of North America usually having a laterally compressed body and metallic luster: crappies, black bass, bluegills, pumpkinseed