Euphractus Wagler, 1830 . Natürliches Syst. Amphibien, p. 36.

COMMENT: Moeller, 1968, Zool. Jahrb. Abt. Syst. Oekol. Geogr. Tiere, 85:411-528, included Chaetophractus and Zaedyus in this genus, but see Wetzel, 1982, in Montgomery, ed., Smithson. Inst. Press, Washington, D.C., who considered them to be distinct genera.

ISIS NUMBER: 5301407003006000000.