Chaetodipterus vs fish genus

Chaetodipterus and fish genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chaetodipterus	Yes	No	No	No
fish genus	Yes	No	No	No

As nouns, fish genus is a hypernym of Chaetodipterus; that is, fish genus is a word with a broader meaning than Chaetodipterus:

Chaetodipterus (noun)	fish genus (noun)
a genus of Ephippidae	any of various genus of fish