Naucrates vs fish genus

Naucrates and fish genus both are nouns.

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

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

Naucrates (noun)	fish genus (noun)
a genus of Carangidae	any of various genus of fish