Myxinoidea vs suborder Hyperotreta

Myxinoidea and suborder Hyperotreta both are nouns.

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

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

Myxinoidea and suborder Hyperotreta: hagfishes as distinguished from lampreys

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

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