Mandrillus vs mammal genus

Mandrillus and mammal genus both are nouns.

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

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

Mandrillus (noun)	mammal genus (noun)
a genus containing the mandrill and drill (Mandrillus)	a genus of mammals