Tympanoctomys barrerae (Lawrence, 1941) . Proc. New England Zool. Club, 18:43.

TYPE LOCALITY: Argentina, Mendoza Prov., La Paz .

DISTRIBUTION: Arid plains of Mendoza Province.

STATUS: IUCN - Vulnerable; rare.

COMMENTS: The chromosome no. is 2n=102 (Contreras and Tores-Mura, 1987).