Neacomys musseri Patton, da Silva, and Malcolm 2000

Neacomys musseri Patton, da Silva, and Malcolm 2000, Bull. Am. Mus . Hist., 244: 98.

Type Locality: Perú, Cusco Dept., Manu Biosphere Reserve, 72 km (by road) NE Paucartambo at km 152, 1460 m.

Vernacular Names: Musser's Neacomys.

Distribution: So far known from the headwaters of the Rio Juruá, SE Perú and extreme W Brazil; range limits require amplification.

Discussion: Morphology, karyology (2n = 34), and genetic differentiation from N. minutus and N. spinosus presented by Patton et al. (2000). Known sympatrically with N. spinosus .