Proechimys magdalenae (Hershkovitz, 1948) . Proc. U. S. Natl. Mus., 97:136.

TYPE LOCALITY: Colombia, Dept, de Bolivar, Rio San Pedro near Norosi (178 m) in the foothills of the Cordillera Central .

DISTRIBUTION: Colombia west of the Rio Magdalena.

COMMENTS: Subgenus Proechimys . Usually combined with cayennensis (= guyannensis) (Cabrera, 1961:521; Eisenberg, 1989), but recognized as species by Corbet and Hill (1991:205), Nowak (1991:943) and Emmons and Feer (1990:274).