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Range DescriptionSaguinus labiatus occurs in the central and south-central Amazon. It occurs south of the Rio SolimÃµes between the Rios Madeira and Purus. The southernmost part of its range extends along the left bank of the Rio AbunÃ£, crossing the headwaters of the AbunÃ£ into the Pando region of northern Bolivia, along both sides of the Rio Acre, and south as far the RÃo Tahuamanu, a tributary of the RÃo Orthon, itself; a tributary of the RÃo Beni (Hershkovitz 1977; Buchanan-Smith et al. 2000). Its range in Peru was reported for the first time by EncarnaciÃ³n and Castro (1990). There it occurs on the basin of the RÃo Acre, extending south as far as the RÃo Tahuamanu. It also occurs between the Rios JapurÃ¡ and SolimÃµes, in the region between the left bank of the Tonantins to beyond the AuatÃ-ParanÃ¡.
Saguinus labiatus labiatus (Brazil, Bolivia, Peru)
This subspecies occurs south of the Rio SolimÃµes between the Rios Madeira (left bank) and Purus, on the right bank (Hershkovitz 1977), south from the Rio Ipixuna. It extends along the left bank of the Rio Madeira and AbunÃ£, to Bolivia, crossing the headwaters of the Rio AbunÃ£, as far south as both sides of the Rio Acre, limited to the north of the RÃo TahuamanÃº, a tributary of the RÃo Orton (tributary of the RÃo Beni). Extends into far south-eastern Peru, north of the Rio TahuamanÃº (Aquino and EncarnaciÃ³n 1994).
Saguinus labiatus thomasi (Brazil)
The range of Saguinus l. thomasi is well separated from the other two subspecies. It is known from very few specimens. According to Hershkovitz (1977), it occurs between the Rios JapurÃ¡ and SolimÃµes, throughout the region between the left bank of the Tonantins to beyond the AuatÃ-ParanÃ¡. It may extend west as far as the Rio IÃ§Ã¡, but there is no record of it occurring in Colombia. In the east, it is probably restricted to terra firma forest, not inhabiting the extensive inundated forest (vÃ¡rzea) near the confluence of the Rios JapurÃ¡ and SolimÃµes (Silva Jr. 1988).
Saguinus labiatus rufiventer Brazil
Occurs in the central Amazon, south from the Rio SolimÃµes between the Rios Madeira and Purus to the Rio Ipixuna, an east bank tributary of the Rio Purus. Saguinus l. labiatus occurs south of the Rio Ipixuna.