Vertebrate fauna of SE Asia
  

 

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Text and photos by Nick Baker, unless otherwise credited.
Copyright ゥ Ecology Asia 2020

 
 
     
   
   

 

   
   
 
Indochinese Rat Snake
   
   

Family : COLUBRIDAE
Species : Ptyas korros
Maximum Size : 2.6 metres

A harmless snake of agricultural and forested areas, this species preys on rats, frogs and other small vertebrates. It is diurnal, and mainly a ground-dweller. Most encounters with the Indochinese Rat Snake occur as the snake attempts to cross rural roads. 

It can be identified by the olive coloured tail with dark-edged scales, and the faint pale brown banding which occurs on the thickest part of the body (though this feature does not occur in mature adults). Its eyes are relatively large.   

The species ranges from India, through Burma, Thailand and Indochina, down to Peninsular  Malaysia, Singapore and the sundaic islands of Sumatra, Borneo, Java and Bali.


Figs 1 and 2 : Mating pair from Bandung, Java, Indonesia.  Photos thanks to Dave Welch.

Fig 3 : Example from rural Johor, Peninsular Malaysia. 

Fig 4 : Example from Kaeng Krachan, Phetchaburi province, Thailand.  Photo thanks to Charles Currin.


References : H1, H2
 




 

 

 

Fig 1
 
ゥ  Dave Welch
Fig 2
 
ゥ  Dave Welch
Fig 3
 
Fig 4
 
ゥ  Charles Currin