Focussing on the vertebrate
 fauna of SE Asia
  

 

Home  
覧覧覧覧覧  
SE Asia fauna ...  
   
Primates
 Carnivorans
 Other Large Mammals
 Squirrels & Small Mammals
 Bats
覧覧
Birds
覧覧
 Snakes
 Lizards & Crocodilians
 Turtles
覧覧
 Amphibians
 Tadpoles
FFrogs & other calls
覧覧
Fishes
覧覧
Species Lists
 








 
覧覧覧覧覧  
  SE Asia Vertebrate Records  (SEAVR) 2018  
覧覧覧覧覧  
New Guinea fauna ...  
   
Snakes
 Lizards
 Frogs
 
覧覧覧覧覧  
 Articles & Publications
 News Links
 
覧覧覧覧覧  
 

Search this site ...

 
 


   

 
  覧覧覧覧覧  

Recently added ...
 
 
     
 
     
 
 
覧覧覧覧覧  
     
   
     
    Links :  
  HOSCAP Borneo  
  Context Institute
  Herpetological Soc. Singapore
  HabitatID  
  Primatewatching  
  Intl. Otter Survival Fund
  Orang Utan Appeal (UK)  
  Wallace Online  
    Citizen Action for Tigers  
    Nature Society (Singapore)  
  Traffic  
    Wild Singapore  
     
  Email :
 
     
  Text and photos by Nick Baker, unless otherwise credited.
Copyright ゥ Ecology Asia 2018
   

 

   
   
 
Silvered Langur
   
   

Fig 1


Fig 2


Fig 3


Fig 4


 

Order : PRIMATES
Family : Cercopithecidae
Species : Trachypithecus cristatus

Head-body length : 41-54 cm
Tail length : 60-76 cm
Weight : 4.0-6.5 kg

The Silvered Langur mainly inhabits coastal forests, mangrove, riverine habitats and swamp forest, including degraded secondary habitats. In parts of Borneo, however, it may occur inland. It feeds mainly on leaves, but will also consume seeds, fruits, flowers and young shoots.

Its body fur is dark grey, with a silvery sheen in strong sunlight, and its face is dark grey or black. Reddish variants have been recorded from parts of eastern Sabah, Borneo. Young infants are orange, but this rapidly becomes dark grey after three months. Adults possess a crest, which develops in late infancy.

The Selangor Silvered Langur Trachypithecus selangorensis, which occurs along the west coast of the malay peninsula, was formerly considered to be part of this species, but is now sometimes classified as a separate species.

The Silvered Langur occurs in Sumatra and islands to the east (Bangka, Belitung, Lingga, Riau Islands), the Natuna Islands and parts of Borneo (including all three political units under which the island is administered, namely Malaysia, Brunei and Indonesia).


Figs 1 and 2 : Female with orange infant in coastal forest at Bako National Park, Sarawak, Borneo.

Fig 3 : The fur of this older infant has already changed from bright orange to various shades of grey.

Fig 4 :
Adult male at Bintan Island, Riau Islands, Indonesia.


References : M2

Roos, C., Boonratana, R., Supriatna, J., Fellowes, J. R., Groves, C. P., Nash, S. D., Rylands, A. B & Mittermeier, R. A. (2014). An updated taxonomy and conservation status review of Asian primates. Asian Primates Journal : 4(1): 2-28.