Order Rodentia - Family Muridae Author Guy G. Musser Author Michael D. Carleton text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 501 755 book chapter http://doi.org/10.5281/zenodo.7353098 1-56098-217-9 7353098 Akodon sylvanus Thomas, 1921 . Ann. Mag. Nat. Hist., ser. 9, 7:184 . TYPE LOCALITY: Argentina , Jujuy Prov. , Sierra de Santa Barbara, Sunchai, 1200 m . DISTRIBUTION: NW Argentina . SYNONYMS: pervalens . COMMENTS: Subgenus Akodon . Retained as a species until Cabrera (1961) synonymized it as a race of A. azarae ; Myers (1989) tentatively listed sylvanus and azarae as separate species. The status and relationship of pervalens deserves resolution: retained as a nominal species similar to A. cursor by Myers (1989); placed as a synonym of A. serrensis by Hershkovitz (1990c) . Arrangment here follows the describer, Thomas (1925).