Callicebus (Torquatus) lugens (Humboldt 1811)

[Simia] lugens Humboldt 1811, Rec. Observ. Zool.: 319.

Type Locality: Venezuela, Amazonas state, near San Fernando de Atabapo, at confluence of Rio Orinoco and Rio Guaviare.

Vernacular Names: Black Titi.

Synonyms: Callicebus (Torquatus) duida Allen 1914; Callicebus (Torquatus) vidua (Lesson 1840) .

Distribution: Brazil, Colombia and Venezuela, west of Rio Branco and north of Rios Negro/Uaupes/Vaupes; then west of Rio Apaporis and north of Rio Caqueta, east of Andes north to Rio Tomo, possibly to Rio Orinoco but known to reach the Orinoco only between Rio Caura and Rio Caroni (van Roosmalen et al., 2002).

Conservation: CITES – Appendix II; IUCN – Lower Risk (lc).

Discussion: Subgenus Torquatus . Separated as a species from C. torquatus by van Roosmalen et al. (2002).