Polyodon spathula vs paddlefish

Polyodon spathula and paddlefish both are nouns.

Word	Noun	Adjective	Verb	Adverb
Polyodon spathula	Yes	No	No	No
paddlefish	Yes	No	No	No

As nouns, Polyodon spathula and paddlefish are synonyms defined as:

Polyodon spathula and paddlefish: primitive fish of the Mississippi valley having a long paddle-shaped snout

Other synonyms of Polyodon spathula include duckbill.

Polyodon spathula (noun)	paddlefish (noun)
primitive fish of the Mississippi valley having a long paddle-shaped snout	primitive fish of the Mississippi valley having a long paddle-shaped snout