suborder Mugiloidea vs order Percomorphi

suborder Mugiloidea and order Percomorphi both are nouns.

Word	Noun	Adjective	Verb	Adverb
suborder Mugiloidea	Yes	No	No	No
order Percomorphi	Yes	No	No	No

suborder Mugiloidea (noun)	order Percomorphi (noun)
fishes distinguished by abdominal pelvic fins: families Mugilidae; Atherinidae; Sphyraenidae	one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna