class Channidae vs northern snakehead

class Channidae and northern snakehead both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Channidae	Yes	No	No	No
northern snakehead	Yes	No	No	No

class Channidae (noun)	northern snakehead (noun)
snakeheads	a voracious freshwater fish that is native to northeastern China; can use fin to walk and can survive out of water for three days; a threat to American populations of fish