Rediscovery of Vanzolini’s Bald-Faced Saki, Pithecia vanzolinii Hershkovitz, 1987 (Primates, Pitheciidae): first record since 1956

André V. Nunes, José E. Serrano-Villavicencio


We report the rediscovery of Pithecia vanzolinii in the upper Juruá River Basin, in the State of Acre, Brazil. An individual was collected after being hunted by a local inhabitant of an extractive community in the Riozinho da Liberdade Extractive Reserve. This is the first record of this species in the last 60 years and highlights the importance of intensifying studies of this almost unknown species.


subsistence hunting; Pitheciinae; extractive reserve; Acre

Full Text:



Constantino, P.A.L. 2016. Deforestation and hunting effects on wildlife across Amazonian indigenous lands. Ecology and Society, 21(2): 3–12. doi: 10.5751/ES-08323-210203

Gyldenstolpe, N. 1941. Preliminary descriptions of some new birds from the Brazilian Amazonas. Arkiv för Zoologi 33B(12): 1–10.

Hershkovitz, P. 1979. The species of sakis, the genus Pithecia (Cebidae, Primates) with notes on sexual dichromatism. Folia Primatologica 31: 1–22.

Hershkovitz, P. 1987. The taxonomy of South American sakis, genus Pithecia (Cebidae, Platyrrhini): a preliminary report and critical review with the description of a new species and a new subspecies. American Journal Primatology 12(4): 387–468. doi: 10.1002/ajp.1350120402

INPE/PRODES (Instituto Nacional de Pesquisas Espaciais). 2016. Monitoramento da floresta Amazônica brasileira por satélite — projeto PRODES. São Paulo, Brasil: Instituto Nacional de Pesquisas Espaciais (INPE). Accessed at, 15 December 2016.

Lönnberg, E. 1938. Remarks on some members of the genera Pithecia and Cacajao from Brazil. Arkiv för Zoologi 30(18): 1–25.

Marsh, L.K. 2014. A taxonomic revision of the saki monkeys, Pithecia Desmarest, 1804. Neotropical Primates 21(1): 1–168. doi: 10.1896/044.021.0101

Marsh, L.K. & L.M. Veiga. 2015. Pithecia vanzolinii. The IUCN Red List of threatened species 2015. doi: 10.2305/

Olalla, A.M. 1937. Um viaje a pesquizas zoologicas hacia el Rio Jurúa [sic], Estado del Amazonas, Brasil — 1936. II. Notas de campo: Observaciones biológicas. Revista do Museu Paulista 23: 235–297.

Patterson, B.D. 1992. Mammals in the Royal Natural History Museum, Stockholm, collected in Brazil and Bolivia by A.M. Olalla during 1934–1938. Fieldiana (Zoology) 66: 1–48. doi: 10.5962/bhl.title.3551

Peres, C.A. 1990. Effect of hunting on western Amazonian primate communities. Biological Conservation 54(1): 47–59. doi: 10.1016/ 0006-3207(90)90041-m

Ravetta, A.L & A.B. Martins. 2015. Avaliação do risco de extinção de Pithecia irrorata vanzolinii (Hershkovitz, 1987) no Brasil. Processo de avaliação do risco de extinção da fauna brasileira. ICMBio. Accessed at, 20 December 2016.

Spix, J. 1823. De Simarium et Vespertiliarum brasilienses species novae, ou histoire naturelle des espèces nouvelles de singes et de chauve-souris observées et recueillies pendant le voyage dans l’intérieur du Brésil. Monaco: Typis Francisci Seraphici Hübschmanni. viii + 72 pp.

de Vivo, M. 1985. On some monkeys from Rondônia, Brazil (Primates: Callitrichidae, Cebidae). Papéis Avulsos de Zoologia (São Paulo) 36(11): 103–110.