IUCN threat status:

Least Concern (LC)

Distribution

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Range Description

Endemic to Brazil. Van Roosmalen et al. (2002) predicted that the species extends as far east as the left bank of the Rio Sucundurí. A recent survey (Noronha et al. 2007) extended the eastern limit of this species range to the left bank of the rivers Abacaxís, Tapajós and Juruena, in the states of Amazonas and Mato Grosso in Brazil. This species’ range should extend to the Rio Paraná do Urariá in the north, east to the left bank of the Rio Abacaxís, and the left bank of the upper Rio Tapajós, west as far as the right bank of the Rio Madeira, and south to the corridor formed between the Rios Aripuanã-Roosevelt and Tapajós-Juruena, in the states of Amazonas and Mato Grosso. The most southerly record is Otoho on the right bank of the Rio Roosevelt in Mato Grosso. In this study, no range overlap was found with other species of Callicebus (Noronha et al. 2007). It has been suggested that the ranges of Callicebus bernhardi, Callicebus cinerascens and Callicebus hoffmannsi, possibly intergrade in some way in the region of the headwaters of the Juruena, Aripuanã and Roosevelt Rivers.

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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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