Percomorphi vs family Sciaenidae

Percomorphi and family Sciaenidae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Percomorphi	Yes	No	No	No
family Sciaenidae	Yes	No	No	No

Percomorphi (noun)	family Sciaenidae (noun)
one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna	warm-water marine fishes including the drums and grunts and croakers and sea trout