wild cavy vs Cavia porcellus

wild cavy and Cavia porcellus both are nouns.

Word	Noun	Adjective	Verb	Adverb
wild cavy	Yes	No	No	No
Cavia porcellus	Yes	No	No	No

As nouns, wild cavy and Cavia porcellus are synonyms defined as:

wild cavy and Cavia porcellus: South American cavy; possibly ancestral to the domestic guinea pig

Other synonyms of wild cavy include aperea.

wild cavy (noun)	Cavia porcellus (noun)
South American cavy; possibly ancestral to the domestic guinea pig	South American cavy; possibly ancestral to the domestic guinea pig