Ariomma vs fish genus

Ariomma and fish genus both are nouns.

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

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

Ariomma: a genus of Stromateidae containing deepwater marine perciform fishes (Ariomma)
fish genus: any of various genus of fish

Ariomma (noun)	fish genus (noun)
a genus of Stromateidae containing deepwater marine perciform fishes (Ariomma)	any of various genus of fish