Eira barbara vs mustelid

Eira barbara and mustelid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Eira barbara	Yes	No	No	No
mustelid	Yes	No	No	No

As nouns, mustelid is a hypernym of Eira barbara; that is, mustelid is a word with a broader meaning than Eira barbara:

Eira barbara: long-tailed arboreal mustelid of Central America and South America
mustelid: fissiped fur-bearing carnivorous mammals

Other hypernyms of Eira barbara include musteline, musteline mammal.

Eira barbara (noun)	mustelid (noun)
long-tailed arboreal mustelid of Central America and South America	fissiped fur-bearing carnivorous mammals