Bolomys lenguarum (Thomas, 1898) . Ann. Mag. Nat. Hist., ser. 7, 2:271.

TYPE LOCALITY: Paraguay, Chaco Boreal, Waikthlatingwaialwa .

DISTRIBUTION: Bolivia; S.W. Brazil; Paraguay; Argentina.

COMMENT: Includes tapirapoanus which was transferred from Akodon; see Reig, 1978, Publ. Mus. Munic. Cienc. Nat. Mar del Plata "Lorenzo Scaglia," 2(8): 164-190. Hershkovitz, 1966, Z. Saugetierk., 31: 127, included tapirapoanus in Zygodontomys; Cabrera, 1961:439, 447, included it in Akodon . B. lenguarum was formerly included in Cabreramys where it had been transferred from Akodon by Massoia and Fornes, 1967, Acta Zool. Lilloana, 23:407-430; see Reig, 1978:167.

ISIS NUMBER: 5301410008001035001 as Akodon tapirapoanus .