Squatina vs fish genus

Squatina and fish genus both are nouns.

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

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

Squatina (noun)	fish genus (noun)
type genus of the Squatinidae: angel sharks	any of various genus of fish