Ctenomys leucodon Waterhouse, 1848 . Nat. Hist. Mamm., 2:281.

TYPE LOCALITY: Bolivia, La Paz Dept., San Andres de Machaca .

DISTRIBUTION: W Bolivia and E Peru around Lake Titicaca.

COMMENTS: See Cook et al. (1990:2-3). The chromosome no. is 2n=36; FN=68.