blue racer vs Coluber constrictor flaviventris

blue racer and Coluber constrictor flaviventris both are nouns.

Word	Noun	Adjective	Verb	Adverb
blue racer	Yes	No	No	No
Coluber constrictor flaviventris	Yes	No	No	No

As nouns, blue racer and Coluber constrictor flaviventris are synonyms defined as:

blue racer and Coluber constrictor flaviventris: bluish-green blacksnake found from Ohio to Texas

blue racer (noun)	Coluber constrictor flaviventris (noun)
bluish-green blacksnake found from Ohio to Texas	bluish-green blacksnake found from Ohio to Texas