Callicebus (Callicebus) dubius Hershkovitz 1988

Callicebus (Callicebus) dubius Hershkovitz 1988, Fieldiana Zool., n. s., 55: 66.

Type Locality: Brazil, east bank of R. Purus, opposite Lago Ayapua, ca. 4°20' S, 62°00' W, according to Hershkovitz (1990).

Vernacular Names: Hershkovitz' Titi.

Distribution: Brazil, Ituxi River or the Mucuim River, east to the Madeira River south of Humaita, and west to the Purus River (van Roosmalen et al., 2002).

Conservation: CITES – Appendix II; IUCN – Vulnerable.

Discussion: Subgenus Callicebus . C. cupreus species group. A synonym of cupreus according to Groves (2001 c), who thought it was a colour morph, but shown to be consistently different, with a distinct geographic distribution by van Roosmalen et al. (2002).