Mus vs genus Mus

Mus and genus Mus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mus	Yes	No	No	No
genus Mus	Yes	No	No	No

As nouns, Mus and genus Mus are synonyms defined as:

Mus and genus Mus: type genus of the Muridae: common house mice; the tips of the upper incisors have a square notch

Mus (noun)	genus Mus (noun)
type genus of the Muridae: common house mice; the tips of the upper incisors have a square notch	type genus of the Muridae: common house mice; the tips of the upper incisors have a square notch