Hyperotreta vs suborder Myxiniformes

Hyperotreta and suborder Myxiniformes both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hyperotreta	Yes	No	No	No
suborder Myxiniformes	Yes	No	No	No

As nouns, Hyperotreta and suborder Myxiniformes are synonyms defined as:

Hyperotreta and suborder Myxiniformes: hagfishes as distinguished from lampreys

Other synonyms of Hyperotreta include Myxiniformes, Myxinoidea, Myxinoidei, suborder Hyperotreta, suborder Myxinoidei.

Hyperotreta (noun)	suborder Myxiniformes (noun)
hagfishes as distinguished from lampreys	hagfishes as distinguished from lampreys