Akodon cursor (Winge, 1887) . E. Mus. Lundii, 1 (3):25.

TYPE LOCALITY: Brazil, Minas Gerais, Lagoa Santa, Rio das Velhas .

DISTRIBUTION: S.E. and C. Brasil; Uruguay; Paraguay; N. Argentina (AL).

COMMENT: Formerly included in arviculoides (which was included in Bolomys lasiurus by Reig, 1978, Publ. Mus. Munic. Cienc. Nat. Mar del Plata "Lorenzo Scaglia," 2(8): 167); includes montensis; see Ximenez and Langguth, 1970, Communic. Zool. Mus. Hist. Nat. Montevideo, 10(128): 1 —7, and Cabrera, 1961:439; also see Massoia, 1979, Physis, 38(95):l-7, and Massoia and Fornes, 1962, Physis, 23(65):185- 194; subgenus Akodon . Karyology reviewed by Yonenaga et al., 1975, Cytogenet. Cell Genet., 15: 388-399. The status of this species is provisional (AL).