Nature Atlas

How Nature Works
Sign In
Text size
100%
Theme

Switch Atlas

Specy

Rylands' bald-faced saki

Mammals

Rylands' bald-faced saki (Pithecia rylandsi) is a disputed species of saki monkey found in northwestern Bolivia, southeastern Peru and the Brazilian states of southern Rondônia and western Mato Grosso, north of the Madre de Dios River in Bolivia and Peru and east and north of the Guaporé River in Brazil. A 2014 study split it from the Rio Tapajós saki on its pelage, but a 2019 study found the distinguishing coat within the variation of that species, and the American Society of Mammalogists tentatively synonymized it, while the IUCN Red List and ITIS keep it. It is named for the Brazilian primatologist Anthony Rylands. It is one of the largest of the sakis, with a very large body, a bare black face and heavy white grizzling that can make older males look almost entirely white. Deforestation for cattle ranching and poaching are thought to be reducing its numbers, and it is rated Vulnerable.

Facts
Classification
Diet
Frugivore 1
Population Trend
Decreasing 2
System (Realm)
Terrestrial 1
Threats
Agriculture and Aquaculture 2
Threats
Biological Resource Use 2
Relationship to People
Kept as Pets 2
Relationship to People
Hunted or Fished 2
Living or Extinct
Yes 2
Scientific Name
Pithecia rylandsi 2
Conservation Status
Vulnerable 2
Activity Pattern
Diurnal 1
Lifespan
30 1
Connections

Child Taxon Of

Pitheciidae, Taxa
Source Wikipedia: Pitheciidae

In Biome

Tropical Rainforest, Biomes
Source Pithecia (Wikipedia)
In the Other Atlases

Found In

Bolivia

Also in Geography Atlas: where this subject is found.

Source Rylands' bald-faced saki (Wikipedia)Lead, range
Quote, Lead, range
It is found in Bolivia, Peru, and Brazil.
Brazil

Also in Geography Atlas: where this subject is found.

Source Rylands' bald-faced saki (Wikipedia)Lead, range
Quote, Lead, range
It is found in Bolivia, Peru, and Brazil.
Peru

Also in Geography Atlas: where this subject is found.

Source Rylands' bald-faced saki (Wikipedia)Lead, range
Quote, Lead, range
It is found in Bolivia, Peru, and Brazil.
Sources
1. Pithecia (Wikipedia)
  • Diet of the genus
    Sakis are frugivores.
  • Habitat and habit of the genus
    Sakis are diurnal animals.
  • Habitat and habit of the genus, system
    They live in the trees of the rain forests and only occasionally go onto the land.
  • Procreation, life expectancy of the genus
    Their life expectancy is up to 30 years.
View the Source
2. Rylands' bald-faced saki (Wikipedia)
  • Lead, range
    It is found in Bolivia, Peru, and Brazil.
  • Status
    It is thus classified as Vulnerable by the IUCN Red List.
  • Status, population trend
    its population is thought to be declining
  • Status, cattle ranching
    This species is thought to be threatened by deforestation for cattle ranching, as well as poaching
  • Status, poaching
    as well as poaching
  • Status, pet trade
    They are sometimes also found in the pet trade.
  • Lead
    (Pithecia rylandsi)
View the Source
Wikipedia: Pitheciidae
WikipediaChild Taxon Of: Pitheciidae, Classification, species list
Quote, Child Taxon Of: Pitheciidae, Classification, species list
Rylands' bald-faced saki, Pithecia rylandsi
View the Source
Comments (0)
No comments yet. Be the first to share a thought.
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.