genus Squatina vs fish genus

genus Squatina and fish genus both are nouns.

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

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

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