---
title: "Dusky Leaf Monkey"
description: "Trachypithecus obscurus — Mammals. The dusky leaf monkey, also known as the spectacled langur or the spectacled leaf monkey, is a species of primate in the family Cercopithecidae."
canonical: https://animalchecklist.com/animal/dusky-leaf-monkey
last_updated: 2026-09-20
---

# Dusky Leaf Monkey

> Trachypithecus obscurus — Mammals. The dusky leaf monkey, also known as the spectacled langur or the spectacled leaf monkey, is a species of primate in the family Cercopithecidae.

- Scientific name: *Trachypithecus obscurus*
- Category: `mammals` (Mammals)
- Habitats: `forest` (Forest), `jungle` (Jungle)
- iNaturalist observations: 5149
- Wikidata: [Q1144328](https://www.wikidata.org/wiki/Q1144328)
- iNaturalist taxon: [43494](https://www.inaturalist.org/taxa/43494)

## Names

- en: Dusky Leaf Monkey
- de: Südlicher Brillenlangur
- es: Langur Obscuro
- fr: Semnopithèque obscur
- nl: Brillangoer

## Countries with the most observations

MY (2578), TH (1864), SG (30), MM (4)

## Summary

The dusky leaf monkey, 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.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Dusky_leaf_monkey

## Photo

![Dusky Leaf Monkey](https://animalchecklist.com/img/animals/dusky-leaf-monkey/medium.jpg)

Photo: Светлана Царахова · CC0 · inaturalist — https://www.inaturalist.org/observations/153911264

## Machine access

`GET https://animalchecklist.com/api/v1/animals/dusky-leaf-monkey?lang=en` — see [openapi.json](https://animalchecklist.com/openapi.json).