Lynx lynx vs catamount

Lynx lynx and catamount both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lynx lynx	Yes	No	No	No
catamount	Yes	No	No	No

As nouns, catamount is a hypernym of Lynx lynx; that is, catamount is a word with a broader meaning than Lynx lynx:

Lynx lynx: of northern Eurasia
catamount: short-tailed wildcats with usually tufted ears; valued for their fur

Other hypernyms of Lynx lynx include lynx.

Lynx lynx (noun)	catamount (noun)
of northern Eurasia	large American feline resembling a lion
	short-tailed wildcats with usually tufted ears; valued for their fur