Xenopus laevis vs Xenopus

Xenopus laevis and Xenopus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Xenopus laevis	Yes	No	No	No
Xenopus	Yes	No	No	No

Xenopus laevis (noun)	Xenopus (noun)
a tongueless frog native to Africa; established in the United States as result of release of laboratory and aquarium animals	an African clawed frog; in some classifications made the type genus of a separate family Xenopodidae