Canis niger vs red wolf

Canis niger and red wolf both are nouns.

Word	Noun	Adjective	Verb	Adverb
Canis niger	Yes	No	No	No
red wolf	Yes	No	No	No

As nouns, Canis niger and red wolf are synonyms defined as:

Canis niger and red wolf: reddish-grey wolf of southwestern North America

Other synonyms of Canis niger include Canis rufus, maned wolf.

Canis niger (noun)	red wolf (noun)
reddish-grey wolf of southwestern North America	reddish-grey wolf of southwestern North America