Ctenomys colburni J. A. Allen 1903
Ctenomys colburni J. A. Allen 1903, Bull. Am. Mus. Nat. Hist., 19: 188.
Type Locality: Argentina, Santa Cruz Prov., Arroyo Aiken, 95 km SE Lake Buenos Ayres.
Vernacular Names: Colburn's Tuco-tuco.
Distribution: Extreme W Santa Cruz Prov. (Argentina).
Conservation: IUCN – Lower Risk (lc).
Discussion: Karyotype has 2n=34 and FN=64 (Gallardo, 1991).