White-thighed Surili
Presbytis siamensis
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassMammalia (Mammals)
- OrderPrimates
- FamilyCercopithecidae (Old World Monkeys)
- GenusPresbytis (Surilis)
- SpeciesPresbytis siamensis (White-thighed Surili)
About the White-thighed Surili
The white-thighed surili (Presbytis siamensis) is a species of primate from the family of old world monkeys (Cercopithecidae). This species lives arboreal amongst the sub-montane forests. It is endemic to the Thai-Malay Peninsula, the Riau Archipelago and Sumatra. In addition, the white-thighed surili contain four subspecies: siamensis (nominate), cana, paenulata and rhionis, are recognized here. Furthermore, they are characterized by the white patches located on the outside of their legs, which is what gives them their name. Additionally, they can be referred to as pale-thighed langur/surili. These primates are an important species for the diversity of forest environments in the Malaysian area.
The white-thighed surili are made up of a common surili build, ranging from around 41–69 cm tall and weighing 5–6.7 kg. Their slender build is covered with a brown-grey fur coat on their backs, with white fur covering their bellies and dark fur on their head. They are known for the white fur on the outsides of their thighs (giving them their name). Additionally, their tails – typically covered in dark fur – can extend roughly 58–85 cm. Compared to adults, infants... Wikipedia →
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taman Negara National Park | 🇲🇾 Malaysia |
More parks will be added in future updates.
Quick answers
What are the chances of seeing a White-thighed Surili in Taman Negara National Park?
About 20% of wildlife watchers report a White-thighed Surili sighting in Taman Negara National Park, based on 11 verified sightings from GBIF citizen-science data.
When is the best time to see White-thighed Surili in Taman Negara National Park?
January has the highest sighting rate for White-thighed Surili in Taman Negara National Park in our monthly data.