suborder Hyperotreta vs Myxinoidei

suborder Hyperotreta and Myxinoidei both are nouns.

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

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

suborder Hyperotreta and Myxinoidei: hagfishes as distinguished from lampreys

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

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