Catagonus wagneri (Rusconi, 1930) . An. Mus. Nac. Hist. Nat. “Bernardino Rivadavia," 36:231.

TYPE LOCALITY: Argentina, Santiago del Estero, Llajta Manca .

DISTRIBUTION: Gran Chaco of Paraguay, Argentina, and Bolivia.

COMMENT: Originally described from pre-Hispanic and subfossil remains; subsequently discovered alive (Wetzel et al., 1975, Science, 189:379-381; see also Wetzel, 1977, Bull. Carnegie Mus. Nat. Hist., 3: 1 -36); Wetzel, 1981, Carnegie Mag., 55:24-32.