Gracilinanus agilis (Burmeister, 1854) . Syst. Uebers. Thiere Bras., 1:139.

TYPE LOCALITY: Brazil, Minas Gerais, "Lagoa Santa."

DISTRIBUTION: Brazil, E Peril, E Bolivia, Paraguay, Uruguay, and adjacent Argentina.

SYNONYMS: beatrix Thomas, 1910; blaseri Miranda-Ribeiro, 1936; buenavistae Tate, 1931; chacoensis Tate, 1931; muscula Shamel, 1930 (preoccupied; replaced by formosa Shamel, 1930); peruana Tate, 1931; rondoni Miranda-Ribeiro, 1936; unduaviensis Tate, 1931.

COMMENTS: The forms agilis and microtarsus may prove to be conspecific.