serranid fish vs percoid fish

serranid fish and percoid fish both are nouns.

Word	Noun	Adjective	Verb	Adverb
serranid fish	Yes	No	No	No
percoid fish	Yes	No	No	No

As nouns, percoid fish is a hypernym of serranid fish; that is, percoid fish is a word with a broader meaning than serranid fish:

Other hypernyms of serranid fish include percoid, percoidean.

serranid fish (noun)	percoid fish (noun)
marine food sport fishes mainly of warm coastal waters	any of numerous spiny-finned fishes of the order Perciformes