DistributionRead full entry
Range DescriptionThis species is found between the Rios TapajÃ³s and Madeira/JiparanÃ¡. The ranges of Callicebus bernhardi, Callicebus cinerascens and Callicebus hoffmannsi may intergrade in some way in the region of the headwaters of the Rios Juruena, AripuanÃ£ and Roosevelt. Callicebus bernhardi occurs in the interfluvium delineated by the Rios Madeira-JiparanÃ¡ and Rios AripuanÃ£-Roosevelt, in the states of Amazonas and RondÃ´nia, Brazil (van Roosmalen et al. 2002). There is a possible sighting in a 50-ha reserve in Alta Floresta in Mato Grosso State, Brazil (Stepp 2003).