Huallaga spiny rat
- kingdom: Animalia
- phylum: Chordata
- class: Mammalia
- order: Rodentia
- family: Echimyidae
- genus: Proechimys
- species: Proechimys brevicauda
Riberalta
El Beni
Bolivia
Porto Velho
Rondônia
Brazil
Cáceres
Antioquia
Colombia
Tena
Napo
Ecuador
Tingo María
Huanuco- Yurimaguas
Loreto- Pozuzo
Pasco- Pucallpa
Ucayali
Peru