Ryland's Bald-Faced Saki

Kingdom Order Family Genus Species
Animalia Primates Pitheciidae Pithecia Pithecia rylandsi
IUCN Status: Vulnerable
  • Common Name: Ryland’s Bald-Faced Saki
  • Taxonomy Classification Year: 2014
  • Monkey Size: 41 to 41 cm (16 to 16 in)
  • Skin Color(s): Grizzly white
  • Habitat: Rainforest
  • Diet: Omnivorous
  • Native Countries: Bolivia, Peru, Brazil

Ryland’s Bald-Faced Saki Distribution

Ryland’s Bald-Faced Saki Characteristics

The Ryland’s Bald-Faced Saki[1] (Pithecia rylandsi) is a controversial species of saki monkey, a New World Monkey species. It is one of the largest sakis.

  • This species is easily distinguished from all other sakis by its large size, black, bare face, and highly whitish-gray hair, often making older males appear almost entirely white.
  • Young males are black with medium gray.
  • Adult females are nearly as intensely white as males, and their forehead hair may form white “fringes“.

Ryland’s Bald-faced Saki Facts

  • This South American monkey was named after Brazilian primatologist Anthony Rylands, a former professor of vertebrate zoology at the Federal University of Minas Gerais and founding editor of the journal Neotropical Primates.
  • This species is believed to be threatened by deforestation for livestock and poaching, so its population is declining.
  • Ryland’s Bald-Faced Sakis has a prominent hairline above the eyes, giving the impression of “bangs“.
  • These monkeys are known for being solitary due to their calm nature and avoidance of humans.
  • They exhibit a specific type of frugivore, primarily feeding on unripe fruit seeds.

Suggested Reading: Kinds of Monkeys In Africa

Cite This Page

BioExplorer.net. (2024, April 13). Ryland’s Bald-faced Saki. Bio Explorer. https://www.bioexplorer.net/animals/mammals/monkeys/rylands-bald-faced-saki/.
BioExplorer.net. "Ryland’s Bald-faced Saki" Bio Explorer, 13 April 2024, https://www.bioexplorer.net/animals/mammals/monkeys/rylands-bald-faced-saki/.
BioExplorer.net. "Ryland’s Bald-faced Saki" Bio Explorer, April 13 2024. https://www.bioexplorer.net/animals/mammals/monkeys/rylands-bald-faced-saki/.
Key References
  • [1]“ITIS – Report: Pithecia rylandsi”. Accessed December 23, 2022. Link.


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