Caviidae
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Mammalia |
| Order: | Rodentia |
| Suborder: | Histricomorpha |
| Family: | Caviidae |
- Genus
- species -- Common Name
- Cavia
- anolaimae, aperia, fulgida, guianae, nana, porcellus, tschudii -- Guinea Pig
- Dolichotis
- patagonum, salinicola -- Patagonia Cavy
- Galea
- flavidens, musteloides, spixii -- Yellow-tailed Cavy
- Kerodon
- rupestris -- Rock Cavy
- Microcavia Microcavia
- australis, shiptoni -- Mountain Cavy
- Microcavia Monticavia
- niata -- Mountain Cavy
