Sciurus spadiceus Olfers, 1818 . In Eschwege, J. Brasilien Neue Bibliothek. Reisenb., 15(2):208.

TYPE LOCALITY: Brazil, restricted by Hershkovitz (1959«) to Cuyabd, Matto Grosso .

DISTRIBUTION: Bolivia, Brazil, Colombia, Ecuador, Peru.

SYNONYMS: brunneo-niger (Gray, 1867); castus Thomas, 1903; fumigatus (Gray, 1867); juralis Thomas, 1926; langsdorffi Brandt, 1835; morio Wagner, 1848; nigratus (Pinto, 1931); purusianus (Moojen, 1942); pyrrhonotus Wagner, 1842; rondoniae (Moojen, 1942); steinbachi J. A. Allen, 1914; taparius Thomas, 1926; tricolor Tschudi, 1844; urucumus J. A. Allen, 1914.

COMMENTS: Subgenus Urosciurus; see Patton (1984).