Rhagomys longilingua Luna and Patterson 2003

Rhagomys longilingua Luna and Patterson 2003, Fieldiana Zool., n. s., 101: 3.

Type Locality: Perú, Cusco Dept., Paucartambo Prov., Manu Biosphere Reserve, along Río Cosñipata, below " Suecia," 1900 m; 13º06.032′S, 71º34.125′W.

Vernacular Names: Long-tongued Rhagomys.

Distribution: Dense forest of E Andean slopes, 450-2100 m, SE Perú (Cusco and Madre de Dios Depts.).

Discussion: Similar to R. rufescens in unique possession (among Sigmodontinae) of a hallux with nail and in most verifiable cranial traits, but fur of R. longilingua spiny and interorbit strongly beaded; so far known by only three specimens (Luna and Patterson, 2003).