Order Primates Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 111 184 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Callicebus (Callicebus) hoffmannsi Thomas 1908 Callicebus (Callicebus) hoffmannsi Thomas 1908 , Ann. Mag. Nat. Hist., ser. 8, 2: 89 . Type Locality: Brazil , Pará, Urucurituba, Rio Tapajós. Vernacular Names: Hoffmanns's Titi . Distribution: C Brazil , south of Amazon, between Rios Canuma and Tapajós-Jurena, south to the Rio Sucunduri. Conservation: CITES – Appendix II; IUCN – Lower Risk (lc). Discussion: Subgenus Callicebus . C. moloch species group. Groves (1992) suggested that this may be a subspecies of moloch , but see Groves (2001 c :170) . Does not include baptista (see Groves, 2001 c :170 , 173).