Marmosops noctivagus (Tschudi 1844)

[Marmosops] noctivagus (Tschudi 1844), Fauna Peruana, Vol. 1: 148.

Type Locality: "Der mittleren und tiefen Waldregion"; restricted by Tate (1933) to Perú, Junín, Montaña de Vitoc, near Chanchamayo, Río Perené drainage.

Vernacular Names: White-bellied Slender Opossum.

Synonyms: Marmosops collega (Thomas 1920); Marmosops keaysi (J. A. Allen 1900); Marmosops leucastra (Thomas 1927); Marmosops lugenda (Thomas 1927); Marmosops neglecta (Osgood 1915); Marmosops polita (Cabrera 1913); Marmosops stollei (Miranda-Ribeiro 1936) .

Distribution: Amazonian Ecuador, Perú, Bolivia, and adjacent Brazil.

Conservation: IUCN – Lower Risk (lc).

Discussion: Anderson (1997) recognized M. noctivagus keaysi in Bolivia. Nevertheless, noctivagus is too poorly known to assign names to subspecies with confidence.