Brazilian guinea pig
Refers to the species Cavia aperea, a wild guinea pig native to South America. Not a common pet; distinct from the domesticated guinea pig (Cavia porcellus).
The Brazilian guinea pig inhabits the grasslands of South America.
I saw a Brazilian guinea pig at the zoo.
Common katakana spelling; usually written in kana.
Kanji spelling is rare; the word is usually written in kana.
From パンパス (pampas, referring to the South American grasslands) + 天竺鼠 (guinea pig). The exact derivation is uncertain, but the name describes its habitat and resemblance to the domesticated guinea pig.