Proboscis Monkey
Nasalis larvatus
- KingdomAnimalia (Animals)
- PhylumChordata (Chordates)
- ClassMammalia (Mammals)
- OrderPrimates
- FamilyCercopithecidae (Old World Monkeys)
- GenusNasalis (Proboscis Monkeys)
- SpeciesNasalis larvatus (Proboscis Monkey)
About the Proboscis Monkey
The proboscis monkey or long-nosed monkey (Nasalis larvatus) is an arboreal Old World monkey with an unusually large nose (or proboscis), a reddish-brown skin color and a long tail. It is endemic to the Southeast Asian island of Borneo and is found mostly in mangrove forests and on the coastal areas of the island.
This species co-exists with the Bornean orangutan and monkeys such as the silvery lutung. It belongs in the monotypic genus Nasalis. The proboscis monkey belongs to the subfamily Colobinae of the Old World monkeys. The two subspecies are: N. l. larvatus (Wurmb, 1787), which occupies the whole range of the species excluding northeast Kalimantan
N. l. orientalis (Chasen, 1940), restricted to north-east Kalimantan However, the difference between the subspecies is small, and not all authorities recognise N. l. orientalis. The genus name Nasalis comes from the Latin word nasus meaning "nose".
This animal was made known to Westerners by Baron Friedrich von Wurmb in 1781, he later sent specimens of it to Stamford Raffles in Europe. The proboscis monkey is a large species, being one of the largest monkey species native to Asia. Only the Tibetan macaque... Wikipedia →
Closest Relatives at Sepilok
Southern Pig-tailed Macaque
Macaca nemestrina
Maroon Leaf Monkey
Presbytis rubicunda
Crab-eating Macaque
Macaca fascicularis
Silvered Leaf Monkey
Trachypithecus cristatus
Bornean Orangutan
Pongo pygmaeus
Philippine Slow Loris
Nycticebus menagensis
Horsfield's Tarsier
Cephalopachus bancanus
North Bornean Gray Gibbon
Hylobates funereus
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 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 2 | Tanjung Puting National Park | 🇮🇩 Indonesia | |
| 3 | Bako National Park | 🇲🇾 Malaysia | |
| 4 | Sepilok | 🇲🇾 Malaysia | |
| 5 | Kinabalu Park | 🇲🇾 Malaysia | |
| 6 | Danum Valley Conservation Area | 🇲🇾 Malaysia |
Quick answers
What are the chances of seeing a Proboscis Monkey in Sepilok?
About 40% of wildlife watchers report a Proboscis Monkey sighting in Sepilok, based on 10 verified sightings from GBIF citizen-science data.
When is the best time to see Proboscis Monkey in Sepilok?
April has the highest sighting rate for Proboscis Monkey in Sepilok in our monthly data.