genus Melogale vs mammal genus

genus Melogale and mammal genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Melogale	Yes	No	No	No
mammal genus	Yes	No	No	No

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

genus Melogale: a genus of Mustelidae containing the ferret-badgers or fadgers (Melogale)
mammal genus: a genus of mammals

genus Melogale (noun)	mammal genus (noun)
a genus of Mustelidae containing the ferret-badgers or fadgers (Melogale)	a genus of mammals