Rhipidomys leucodactylus (Tschudi, 1845) . Fauna Peruana, 1:183.

TYPE LOCALITY: E. Peru .

DISTRIBUTION: S. Venezuela; N.W. and E. Ecuador; N.W. and E. Peru; N. W. Argentina; S. Bolivia.

COMMENT: Includes rex; see Cabrera, 1961:421; Walker et al., 1975:765, listed rex as a distinct species, without comment.

ISIS NUMBER: 5301410008050002001.