suborder Hyperotreta vs suborder Myxiniformes

suborder Hyperotreta and suborder Myxiniformes both are nouns.

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

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

suborder Hyperotreta and suborder Myxiniformes: hagfishes as distinguished from lampreys

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

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