Serranidae vs Percomorphi

Serranidae and Percomorphi both are nouns.

Word	Noun	Adjective	Verb	Adverb
Serranidae	Yes	No	No	No
Percomorphi	Yes	No	No	No

Serranidae (noun)	Percomorphi (noun)
marine fishes: sea basses, sea perches, groupers, jewfish	one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna