Pacific walrus vs Odobenus divergens

Pacific walrus and Odobenus divergens both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pacific walrus	Yes	No	No	No
Odobenus divergens	Yes	No	No	No

As nouns, Pacific walrus and Odobenus divergens are synonyms defined as:

Pacific walrus and Odobenus divergens: a walrus of the Bering Sea and northern Pacific

Pacific walrus (noun)	Odobenus divergens (noun)
a walrus of the Bering Sea and northern Pacific	a walrus of the Bering Sea and northern Pacific