Holochilus chacarius Thomas, 1906, Ann. Mag. Nat. Hist., ser. 7, 18:446. TYPE LOCALITY: Paraguay, Chaco, one league N.W. of Concepcion. DISTRIBUTION: Paraguay; N.E. Argentina. COMMENT: Formerly included in brasiliensis by Hershkovitz, 1955, Fieldiana Zool., 37:665; includes balnearum; see Massoia, 1976, in Vidal et al., Physis, 35(90):76, and Massoia, 1980, Ameghiniana, 17:280- 287. Karyology reviewed by Riva et al., 1977, Physis, 36(92):215-218. OAR considers balnearum a distinct species.

Published as part of James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Rodentia (Part 3), pp. 392-476 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections on page 420, DOI: 10.5281/zenodo.7353031

{"references": ["Massoia, E. 1976. Sobre la identidad del holotipo de Graomys hypogaeus Cabrera 1934 (Mammalia-Rodentia-Cricetidae). Revista de Investigaciones Agropecuarias, INTA, Serie 5, Patologia Vegetal, 13: 15 - 20."]}