Akodon puer Thomas, 1902 . Ann. Mag. Nat. Hist., ser. 7, 9:136.

TYPE LOCALITY: Bolivia, Cochabamba Dept., upper Rio Secure, Choquecamate, 4000 m .

DISTRIBUTION: High altipiano of C Peru (Puno), through W Bolivia, to NW Argentina.

SYNONYMS: caenosus, lutescens, polius .

COMMENTS: Subgenus Akodon . Karyologic and morphometric variation presented, as A. caenosus, by Barquez et al. (1980). In their revision of the boliviensis group, Myers et al. (1990) referred caenosus, maintained as a species by Cabrera (1961), and lutescens, classified as a subspecies of A. andinus by Cabrera (1961), to subspecies of A. puer (also see Vitullo et al., 1986). Hershkovitz (1990c) listed both caenosus and lutescens as species affiliated with A. boliviensis .