Lactophrys vs fish genus

Lactophrys and fish genus both are nouns.

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

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

Lactophrys (noun)	fish genus (noun)
a genus of Ostraciidae	any of various genus of fish