surfperch vs percoidean

surfperch and percoidean both are nouns.

Word	Noun	Adjective	Verb	Adverb
surfperch	Yes	No	No	No
percoidean	Yes	No	No	No

As nouns, percoidean is a hypernym of surfperch; that is, percoidean is a word with a broader meaning than surfperch:

surfperch: small to medium-sized shallow-water fishes of the Pacific coast of North America
percoidean: any of numerous spiny-finned fishes of the order Perciformes

Other hypernyms of surfperch include percoid, percoid fish.

surfperch (noun)	percoidean (noun)
small to medium-sized shallow-water fishes of the Pacific coast of North America	any of numerous spiny-finned fishes of the order Perciformes