cobia vs percoid

cobia and percoid both are nouns.

Word	Noun	Adjective	Verb	Adverb
cobia	Yes	No	No	No
percoid	Yes	No	No	No

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

cobia: large dark-striped tropical food and game fish related to remoras; found worldwide in coastal to open waters
percoid: any of numerous spiny-finned fishes of the order Perciformes

Other hypernyms of cobia include percoid fish, percoidean.

cobia (noun)	percoid (noun)
large dark-striped tropical food and game fish related to remoras; found worldwide in coastal to open waters	any of numerous spiny-finned fishes of the order Perciformes