It is only known from a single locality off the coast of southeastern Brazil, near the mouth of the Doce River.
The last subspecies, the crested or robust tufted capuchin (S. n. robustus) is found in the northern part of this species' range (north of the Doce River), and has a median conical crest on the crown.
The second group were divided in to two bands residing at Guido Marliere, on the Rio Doce.
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The tribe's original territory was in Espírito Santo, and reached inland to the headwaters of Rio Grande (Belmonte) and Rio Doce on the eastern slopes of the Serra do Espinhaço.
noctivagus, the nominate race, occurs in southeastern Brazil: Minas Gerais (Doce River area), southern Bahia, Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, and Rio Grande do Sul.
Mississippi River | River Thames | Amazon River | Columbia River | Hudson River | Colorado River | Potomac River | river | Ohio River | Missouri River | Delaware River | Murray River | River Tyne | Madeira River | Volga River | River Nene | River Clyde | River Trent | River Severn | Amur River | River Wear | Allegheny River | Red River | Dnieper River | Yarra River | Paraná River | River Tees | Fraser River | Yangtze River | Tocantins River |
It forms the divide between the upper watershed of the São Francisco River and those of the shorter rivers which flow east into the Atlantic, including the Doce, the Jequitinhonha, and the Pardo rivers.
However, they are also found in the Juparanã lagoon, close to the mouth of the Doce river, which is a lentic habitat.
Located in the Doce river ("Rio Doce) basin, Santo Antônio do Rio Abaixo is 190 km from Belo Horizonte, by the MG-010, BR-381 and BR-120.