Percomorphi vs Perciformes

Percomorphi and Perciformes both are nouns.

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

As nouns, Percomorphi and Perciformes are synonyms defined as:

Percomorphi and Perciformes: one of the largest natural groups of fishes of both marine and fresh water: true perches, basses, tuna

Other synonyms of Percomorphi include order Perciformes, order Percomorphi.

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