Distribution. Amazonian Brazil, S of the Rio Amazonas-Solimoes, W of the rios Tapajos-Teles Pires to the Rio Ucayali in NE Peru (where it is replaced by A. belzebuth on the left bank of the lower Ucayali); it crosses the middle Ucayali S of the Rio Cushabatay (a left bank tributary of the Ucayali), extending to the interfluvium of the rios Ucayali and Huallaga, then S along the Cordillera Oriental, and into N & C Bolivia S to ¢.17° S, and from there, NE through Noel Kempff Mercado National Park. in Atelidae

Distribution. Amazonian Brazil, S of the Rio Amazonas-Solimoes, W of the rios Tapajos-Teles Pires to the Rio Ucayali in NE Peru (where it is replaced by A. belzebuth on the left bank of the lower Ucayali); it crosses the middle Ucayali S of the Rio Cushabatay (a left bank tributary of the Ucayali), extending to the interfluvium of the rios Ucayali and Huallaga, then S along the Cordillera Oriental, and into N & C Bolivia S to ¢.17° S, and from there, NE through Noel Kempff Mercado National Park.