Marmosops impavidus (Tschudi, 1844) . Fauna Peruana, 1:149.

TYPE LOCALITY: "Der mittleren und tiefen Waldregion;" interpreted by Cabrera (1958:16) as Perù, Junin, "Montana de Vitoc, cerca de Chanchamayo" .

DISTRIBUTION: Mountains of W Panamâ to Venezuela and Colombia, Ecuador, and Perù, with an isolated population in S Venezuela.

SYNONYMS: albiventris Tate, 1931; caucae Thomas, 1900; celicae Anthony, 1922; madescens Osgood, 1913; neblina Gardner, 1990; oroensis Anthony, 1922; sobrina Thomas, 1913; ucayaliensis Tate, 1931.