SE Asia fauna ...   
Other Mammals
Lizards & Crocodilians
New Guinea fauna ...  

Species Lists
Articles & Publications  
News Links  
Singapore sightings
Image policy

Search this site ...




Recently added ...
    Links :  
  Intl. Otter Survival Fund
  Orang Utan Appeal (UK)  
  Chope for Nature  
  Wallace Online  
    Cicada Tree Eco-place  
    Flora Singapura  
  Malaysian Nature Society  
    Citizen Action for Tigers  
    Nature Society (Singapore)  
    Wild Singapore  
  Text and photos by Nick Baker, unless otherwise credited.
Copyright ゥ Ecology Asia 2014


Sunda Slow Loris

Fig 1

Fig 2

Fig 3

Fig 4

Fig 5


Family : Lorisidae
Species : Nycticebus coucang

Head-body length : 26-30 cm
Tail length : 1.5-2.5 cm
Weight : up to 2 kg

The Sunda Slow Loris is a small primate inhabiting primary and secondary forests, as well as orchards, plantations and bamboo groves. It is slow moving, arboreal and solitary in habits. Mainly nocturnal, it rests by day in the forks of trees, or in thick vegetation.

Formerly slow lorises were lumped together in a single species, but in recent years studies have revealed between five and eight species, all of which occur in Southeast Asia. The Sunda Slow Loris retains the original species name of Nycticebus coucang.

The thick, short fur of this species varies in colour from grey-brown to reddish-brown, and a darker stripe extends from the top of the head down the spine, sometimes to the base of the tail. On top of the head this dark stripe divides into four somewhat less dark stripes that extend to the ears and eyes.

There are dark rings around the eyes, and a thick white stripe between. The tail is short, measuring just 1 or 2 cm. It feeds primarily on large insects and molluscs, but will also take vertebrates such as lizards or fledglings from birds nests. Fruits also contribute to its diet, and it appears to have a fondness for the sap of certain tree species.

A single young is born (occasionally twins) after a gestation period of over six months : the young remain with the mother for up to nine months. Males are territorial.

The Sunda Slow Loris occurs in Thailand, Peninsular Malaysia, Singapore and Sumatra. In Singapore the population appears to be a mix of native animals, and introduced individuals of other races or species, possibly once kept as pets.

Fig 1 : Specimen from Fraser's Hill, Pahang, Peninsular Malaysia exploring the leaves and flowers of Piper aduncum.

Fig 2 :
A lone Sunda Slow Loris in Panti Forest, Johor, Peninsular Malaysia.

Fig 3 :
Licking the sap of the Bat Laurel Prunus polystachyus, after having peeled away some of the bark.

Fig 4 :
The Sunda Slow Loris is an adept climber.

Fig 5 : Specimen from Fraser's Hill, Pahang, Peninsular Malaysia active on a misty, rainy night.

References : M1, M2, M3, M8