Alepisaurus vs fish genus

Alepisaurus and fish genus both are nouns.

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

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

Alepisaurus (noun)	fish genus (noun)
slender scaleless predaceous tropical deep-sea fishes	any of various genus of fish