hag vs Myxine glutinosa

hag and Myxine glutinosa both are nouns.

Word	Noun	Adjective	Verb	Adverb
hag	Yes	No	No	No
Myxine glutinosa	Yes	No	No	No

As nouns, Myxine glutinosa is a hyponym of hag; that is, Myxine glutinosa is a word with a more specific, narrower meaning than hag:

hag: eellike cyclostome having a tongue with horny teeth in a round mouth surrounded by eight tentacles; feeds on dead or trapped fishes by boring into their bodies
Myxine glutinosa: typical hagfish

Other hyponyms of hag include eptatretus, Myxinikela siroka.

hag (noun)	Myxine glutinosa (noun)
eellike cyclostome having a tongue with horny teeth in a round mouth surrounded by eight tentacles; feeds on dead or trapped fishes by boring into their bodies	typical hagfish
an ugly evil-looking old woman