Sun-Tailed Monkey

Kingdom Order Family Genus Species
Animalia Primates Cercopithecidae Allochrocebus Allochrocebus solatus
IUCN Status: Nearly-Threatened
  • Common Name: Sun-tailed Monkey
  • Taxonomy Classification Year: 1988
  • Monkey Size: 42 to 56 cm (6 to 22 in)
  • Skin Color(s): Gray-brown
  • Habitat: Forest, rainforest
  • Diet: Omnivorous
  • Native Countries: Gabon

Sun-tailed Monkey Distribution

Sun-Tailed Monkey Characteristics

The sun-tailed monkey[1] (Allocrocebus solatus) is among the most understudied primates in its habitat.

  • Discovered as a new species in 1988, it is classified as a guenon, a member of the Cercopithecus genus, but later moved to the Allochrocebus genus.
  • It is closely related to Allocrocebus ihoesti and Allocrocebus preussi as determined by chromosome analysis.
  • Sun-tailed monkeys have grey-brown fur on most of their bodies. Their backs are rusty brown, and their tails fade to white, then the bright orange that gave them their name.
  • The males’ coloring is more intense than the females, and their fur pattern is more contrasting.
  • Males also have a distinctive white ruff much less developed than females.
  • Juveniles are yellowish-brown throughout and eventually develop adult coloration. However, before reaching maturity, it is less vivid and less contrasting.

Sun-Tailed Monkey Facts

  • Although sun-tailed monkeys primarily eat fruit, grass, and invertebrates, young sun-tailed monkeys have been hunting larger prey, including duikers, small antelope species.
  • These monkeys are diurnal and probably semi-terrestrial. However, their degree of earthiness has been the subject of debate among scholars, with early reports labeling them as terrestrial species and others as more arboreal.
  • Sun-tailed monkeys spend much more time on the ground during the dry season than during the rainy season.
  • Sun-tailed monkeys travel primarily in quadrupeds. They also climb and jump trees and occasionally walk on two legs.
  • The groups consist of one male and several females, with an average of 18 individuals. The adult sex ratio is usually five females to one male.

Suggested Reading: Different Kinds of Monkeys

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BioExplorer.net. (2023, January 31). Sun-Tailed Monkey. Bio Explorer. https://www.bioexplorer.net/animals/mammals/monkeys/sun-tailed-monkey/.
BioExplorer.net. "Sun-Tailed Monkey" Bio Explorer, 31 January 2023, https://www.bioexplorer.net/animals/mammals/monkeys/sun-tailed-monkey/.
BioExplorer.net. "Sun-Tailed Monkey" Bio Explorer, January 31 2023. https://www.bioexplorer.net/animals/mammals/monkeys/sun-tailed-monkey/.
Key References
  • [1]“Sun-Tailed Monkey, Allochrocebus solatus | New England Primate Conservancy”. Accessed December 04, 2022. Link.

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