Tawny-bellied Cotton Rat
- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Rodentia
- family: Cricetidae
- genus: Sigmodon
- species: Sigmodon fulviventer
Miguel Ahumada
Chihuahua- Canatlán
Durango- Tequila
Jalisco- Briseñas
Michoacán- Cúmpas
Sonora
Mexico
Rio Rico- Sierra Vista Southeast
- Willcox
Arizona
United States