The exact range limits of the two subspecies remain unclear. According to Hershkovitz (1987), Pithecia p. pithecia occurs in the Guyanas and Pithecia p. chrysocephala in Brazil; however, the former has been confirmed in the state of Amapá and the north of Pará, which means the range of Pithecia p. chrysocephala is reduced to the area between the Rios Negro and Rio Nhamundá (Jose Silva Jr. pers. comm.).
Habitat and Ecology
Sakis are specialized morphologically for seed predation. The diet of a group of Pithecia, p. pithecia comprised seeds (61%), fleshy fruit (28%), young leaves (7%), insects (2%) and flowers (2%) (Kinzey and Norconk 1993; Norconk 1996).
Life History and Behavior
Lifespan, longevity, and ageing
Molecular Biology and Genetics
Barcode data: Pithecia pithecia
There are 2 barcode sequences available from BOLD and GenBank. Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species. See the BOLD taxonomy browser for more complete information about this specimen and other sequences.
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Download FASTA File
Statistics of barcoding coverage: Pithecia pithecia
Public Records: 1
Specimens with Barcodes: 7
Species With Barcodes: 1
IUCN Red List Assessment
Red List Category
Red List Criteria
- 2003Least Concern(IUCN 2003)
- 1996Lower Risk/least concern(Baillie and Groombridge 1996)
The white-faced saki (Pithecia pithecia), also known as the Guianan saki and the golden-faced saki, is a species of saki monkey, a type of New World monkey, found in Brazil, French Guiana, Guyana, Suriname and Venezuela. This species lives in the understory and lower canopy of the forest, feeding mostly on fruits, but also eating nuts, seeds, and insects.
There are two recognized subspecies of this monkey:
- Pithecia pithecia pithecia
- Pithecia pithecia chrysocephala
In captivity, female white-faced sakis experience ovarian cycles of approximately 17 days, and a gestational period of 20–21 weeks. Following birth, the mother undergoes a period of lactationally-induced fertility lasting 23 weeks, on average.
Sakis of the Pithecia pithecia species display noticeable sexual dichromism in their coloration. Females have shorter hair than males, with brownish-grey fur and white or pale brown stripes around the corners of the nose and mouth. Males, on the other hand, have blacker fur, with a reddish-white forehead, face, and throat.
A pair often mates for life. They are very devoted and will strengthen their bond by grooming one another.
- Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M, eds. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. p. 148. OCLC 62265494. ISBN 0-801-88221-4.
- Veiga, L. M. & Marsh, L. (2008). Pithecia pithecia. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 3 January 2009.
- Savage, A., et al. (1995). Selected aspects of female white-faced saki (Pithecia pithecia) reproductive biology in captivity. Zoo Biology, 14(5), 441–452. Retrieved 8 July 2008, from Wiley InterScience Journals database. doi:10.1002/zoo.1430140506.
- Sakis Pithecia. (23 Feb 2004). Retrieved 8 July 2008, from Mark V. Flinn, Dept. of Anthropology, University of Missouri-Columbia