catamount vs Felis concolor

catamount and Felis concolor both are nouns.

Word	Noun	Adjective	Verb	Adverb
catamount	Yes	No	No	No
Felis concolor	Yes	No	No	No

As nouns, catamount and Felis concolor are synonyms defined as:

Other synonyms of catamount include cougar, mountain lion, painter, panther, puma.

catamount (noun)	Felis concolor (noun)
large American feline resembling a lion	large American feline resembling a lion
short-tailed wildcats with usually tufted ears; valued for their fur