The Ashaninka Oldfield mouse (''Thomasomys onkiro'') is a species of

rodent Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal specie ...

in the family

Cricetidae The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, muskrats, and New World rats and mice. At over 870 species, it is either the largest or second-largest family ...

. It is known only from a single locality (which includes Otishi National Park) in the Cordillera Oriental of the southern

Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...

vian

Andes The Andes ( ), Andes Mountains or Andean Mountain Range (; ) are the List of longest mountain chains on Earth, longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range ...

, in

montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures lapse rate, fall as elevation increases, causing the ecosystem to stratify. This stratification is ...

at an elevation of 3350 m. It has terrestrial habits. The common name refers to the

Asháninka The Asháninka or Asháninca are an Indigenous people living in the rainforests in the regions of Junín, Pasco, Huanuco, and Ucayali in Peru, and in the State of Acre in Brazil. Their ancestral lands are in the forests of Junín, Pasco, H ...

, the largest indigenous group of the Peruvian Amazon.

References

Mammals of Peru Thomasomys Mammals described in 2002 {{Thomasomys-stub