muskellunge vs Esox masquinongy

muskellunge and Esox masquinongy both are nouns.

Word	Noun	Adjective	Verb	Adverb
muskellunge	Yes	No	No	No
Esox masquinongy	Yes	No	No	No

As nouns, muskellunge and Esox masquinongy are synonyms defined as:

muskellunge and Esox masquinongy: large (60 to 80 pounds) sport fish of North America

muskellunge (noun)	Esox masquinongy (noun)
large (60 to 80 pounds) sport fish of North America	large (60 to 80 pounds) sport fish of North America
flesh of very large North American pike; a game fish