- bare-tailed woolly opossum
Caluromys philander
- dromedary
Camelus dromedarius
- Ethiopian wolf
Canis simensis
- pygmy right whale
Caperea marginata
- Siberian ibex
Capra sibirica
- Sumatran serow
Capricornis sumatraensis
- Desmarest's hutia
Capromys pilorides
- five-toed pygmy jerboa
Cardiocranius paradoxus
- Seba's short-tailed bat
Carollia perspicillata
- Owl's spiny rat
Carterodon sulcidens
- Chacoan peccary
Catagonus wagneri
- Brazilian guinea pig
Cavia aperea
- brown capuchin
Cebus apella