suborder Myxinoidei vs suborder Hyperotreta

suborder Myxinoidei and suborder Hyperotreta both are nouns.

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

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

suborder Myxinoidei and suborder Hyperotreta: hagfishes as distinguished from lampreys

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

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