Dusky Leaf-monkey
Trachypithecus obscurus
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassMammalia (Mammals)
- OrderPrimates
- FamilyCercopithecidae (Old World Monkeys)
- GenusTrachypithecus (Lutungs)
- SpeciesTrachypithecus obscurus (Dusky Leaf-monkey)
About the Dusky Leaf-monkey
The dusky leaf monkey (Trachypithecus obscurus), also known as the spectacled langur or the spectacled leaf monkey, is a species of primate in the family Cercopithecidae. It is found in Peninsular Malaysia, Myanmar and Thailand, and can occasionally be found in Singapore. During the day, these small, folivorous primates divide in sub-groups and forage for vegetation and fruit throughout the tropical forests. According to the IUCN, the dusky leaf monkey's population is declining due to habitat loss, poaching, and anthropogenic land use, which prompted the IUCN to classify the species as endangered in 2015.
Within the Cercopithecidae family, the dusky leaf monkey is a member of the genus Trachypithecus. Although most researchers agree with this classification, others believe that this primate should be categorized under the genus Presbytis.
Researchers have also disputed the number of subspecies that exist, with some claiming that there are 11, while others claim there are seven. Currently, the following seven subspecies are officially recognized: T. o. obscurus
T. o. flavicauda T. o. halonifer T. o. carbo T. o. styx T. o. seimundi T. o. sanctorum... 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 | Khao Sok National Park | 🇹🇭 Thailand | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 3 | Taman Negara National Park | 🇲🇾 Malaysia |
Quick answers
What are the chances of seeing a Dusky Leaf-monkey in Taman Negara National Park?
About 30% of wildlife watchers report a Dusky Leaf-monkey sighting in Taman Negara National Park, based on 14 verified sightings from GBIF citizen-science data.
When is the best time to see Dusky Leaf-monkey in Taman Negara National Park?
January has the highest sighting rate for Dusky Leaf-monkey in Taman Negara National Park in our monthly data.