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  Text and photos by Nick Baker, unless otherwise credited.
Copyright ゥ Ecology Asia 2019





Snakes of  Southeast Asia

Southeast Asia's snakes exhibit a remarkable diversity of colour, patterning, shape and size.  Equally diverse are their habits and behaviour.  Some species, such as the White-bellied Blind Snake, spend virtually their entire lives burrowing in the tropical soil.  Others, such as the Big-eye Whip Snake and Elegant Bronzeback, are master climbers which can easily ascend vertical tree trunks or navigate their way amongst  the most slender of branches.  The most amazing of tree dwellers are of the genus Chrysopelea, such as the Paradise Tree Snake : these 'flying snakes' can glide from tree to tree by flattening their body to trap a cushion of air beneath.

Many species, such as the Puff-faced Water Snake, have found their niche in tropical streams and ponds, while others can survive in mangrove habitat, spending much of their lives semi-submerged. Sea Snakes have taken a watery life to the extreme and are true marine dwellers, though they still need to surface to breathe.

Presented here are a selection of the regions snakes to illustrate this amazing diversity ... 


Blind Snakes  (Typhlopidae)

Sunbeam Snake  (Xenopeltidae)
Brahminy Blind Snake
Ramphotyphlops braminus 
  White-bellied Blind Snake
Typhlops muelleri
  Sunbeam Snake
Xenopeltis unicolor

Pipe Snakes  (Cylindrophiidae)

Pythons  (Pythonidae)
Singapore Red-tailed Pipe Snake
Cylindrophis mirzae  
  Indian Rock Python
Python molurus molurus
  Reticulated Python
Malayopython reticulatus

Whip Snakes  (Colubridae, Genus : Ahaetulla, Dryophiops)

Big-eye Green Whip Snake
Ahaetulla mycterizans
  Oriental Whip Snake
Ahaetulla prasina
  Keel-bellied Whip Snake
Dryophiops rubescens

Flying Snakes  (Colubridae, Genus : Chrysopelea)

Golden Tree Snake
Chrysopelea ornata
  Paradise Tree Snake
Chrysopelea paradisi
  Twin-barred Tree Snake
Chrysopelea pelias

Bronzebacks  (Colubridae, Genus : Dendrelaphis)

Striped Bronzeback
Dendrelaphis caudolineatus
  Blue Bronzeback
Dendrelaphis cyanochloris
  Elegant Bronzeback
Dendrelaphis formosus
  Haas's Bronzeback
Dendrelaphis haasi
  Kopstein's Bronzeback
Dendrelaphis kopsteini
Sawtooth-necked Bronzeback
Dendrelaphis nigroserratus
Painted Bronzeback
Dendrelaphis pictus
Cohn's Bronzeback
Dendrelaphis striatus   
  Mountain Bronzeback
Dendrelaphis subocularis 

Cat Snakes  (Colubridae, Genus : Boiga)

Green Cat Snake
Boiga cyanea
  Dog-toothed Cat Snake
Boiga cynodon
  Gold-ringed Cat Snake
Boiga dendrophila
  White-spotted Cat Snake
Boiga drapiezii
  Jasper Cat Snake
Boiga jaspidea
Black-headed Cat Snake
Boiga nigriceps 

Reed Snakes  (Colubridae, Genus : Calamaria, Macrocalamus, Pseudorabdion)

Gimlett's Reed Snake
Calamaria gimletti
  Variable Reed Snake
Calamaria lumbricoidea
  Collared Reed Snake
Calamaria pavimentata
  Pink-headed Reed Snake
Calamaria schlegeli
  Schmidt's Reed Snake
Calamaria schmidti
Reed Snake (N. Kalimantan)
Calamaria sp.
Chan-ard's Reed Snake
Macrocalamus chanardi
  Dwarf Reed Snake 
Pseudorabdion longiceps

Wolf Snakes  (Colubridae, Genus : Lycodon)

Dusky Wolf Snake
Lycodon albofuscus
  Mountain Wolf Snake
Lycodon butleri
  Common House Snake
Lycodon capucinus
  Banded Wolf Snake
Lycodon subcinctus 

Brown Snakes  (Colubridae, Genus : Xenelaphis)

Ocellated Brown Snake 
Xenelaphis ellipsifer
  Malayan Brown Snake
Xenelaphis hexagonotus

Rat Snakes  (Colubridae, Genus : Ptyas)

Keeled Rat Snake
Ptyas carinata
  White-bellied Rat Snake
Ptyas fusca
  Indochinese Rat Snake
Ptyas korros

Racers  (Colubridae, Genus : Coelognathus, Gonyosoma, Oreocryptophis, Orthriophis)

Malayan Racer
Coelognathus flavolineatus  
  Red-tailed Racer
Gonyosoma oxycephalum
  Red Mountain Racer
Oreocryptophis porphyraceus
Moelendorff's Rat Snake
Orthriophis moellendorffi
Cave Dwelling Snake
Orthriophis taeniurus ridleyi

Kukri Snakes  (Colubridae, Genus : Oligodon)

Tioman Kukri Snake
Oligodon booliati
  Small-banded Kukri Snake
Oligodon fasciolatus
  Mouhot's Kukri Snake
Oligodon mouhoti
  Striped Kukri Snake
Oligodon octolineatus
  Brown Kukri Snake
Oligodon purpurascens
Barred Kukri Snake
Oligodon signatus 

Many-toothed or Collared Snakes  (Colubridae, Genus : Sibynophis)  

Mountain Many-tooth Snake
Sibynophis collaris    
  Black-headed Collared Snake
Sibynophis melanocephalus

Other Colubrids  (Cyclophops, Dryocalamus, Gongylosoma)  

Many-banded Green Snake 
Cyclophiops multicinctus
  Malayan Bridle Snake 
Dryocalamus subannulatus
  Orange-bellied Ringneck
Gongylosoma baliodeirum 

File Snakes  (Acrochordidae)

Banded File Snake
Acrochordus granulatus 

Water Snakes  (Homalopsidae)

Dog-faced Water Snake
Cerberus schneiderii
  Rainbow Water Snake
Enhydris enhydris
  Crab-eating Water Snake
Fordonia leucobalia
  Gerard's Water Snake
Gerarda prevostiana
  Puff-faced Water Snake   
Homalopsis buccata
Grey Water Snake
Hypsiscopus plumbea
  Blackwater Mud Snake
Phytolopsis punctata

Keelbacks and Mock Vipers  (Natricidae)

Malayan Mountain Keelback
Hebius inas
  Sarawak Keelback
Hebius sanguineum
  Red Mountain Keelback
Hebius sarawacense
Orange-necked Keelback
Macropisthodon flaviceps
  Blue-necked Keelback
Macropisthodon rhodomelas
Speckle-bellied Keelback
Rhabdophis chrysargos
  Fire-lipped Keelback
Rhabdophis murudensis
  Red-necked Keelback
Rhabdophis subminiatus
Yellow-Spotted Keelback
Xenochrophis flavipunctatus
  Spotted Keelback
Xenochrophis maculatus
  Triangle Keelback
Xenochrophis trianguligerus
  Striped Keelback
Xenochrophis vittatus
Painted Mock Viper
Psammodynastes pictus
  Common Mock Viper
Psammodynastes pulverulentus

Slug Snakes  (Pareatidae)

Smooth Slug Snake
Asthenodipsas laevis
  Mirkwood Forest Slug Snake
Asthenodipsas lasgalensis
  Mountain Slug Snake
Asthenodipsas vertebralis
  Keeled Slug Snake
Pareas carinatus 
  White-spotted Slug Snake
Pareas margaritophorus   

Coral Snakes, Cobras, Kraits etc.  (Elapidae)

Banded Krait
Bungarus fasciatus
  Red-headed Krait
Bungarus flaviceps
Blue Malayan Coral Snake
Calliophis bivirgatus
Banded Malayan Coral Snake
Calliophis intestinalis
MacClelland's Coral Snake
Sinomicrurus macclellandi
Equatorial Spitting Cobra 
Naja sumatrana
  King Cobra 
Ophiophagus hannah

Sea Snakes
  (Hydrophiidae)  As of 2018, more than 70 species of sea snake are recognised, in 17 genera. These snakes are highly adapted to the marine environment, for example their tails are laterally compressed, they can close off their nostrils to prevent water ingress and they are able to expel excessive salt build-up efficiently. The genus Hydrophis comprises around half of all species. Snakes in the genus Laticauda, are not considered to be 'true sea snakes' as they possess fewer such adaptations. Many sea snakes are highly venomous and should be approached with caution.  Some examples from Southeast Asia:

Beaded Sea Snake
Aipysurus eydouxii
  Olive Sea Snake
Aipysurus laevis
  Short Sea Snake 
Hydrophis curtus
  Striped Sea Snake 
Hydrophis fasciatus
  Beaked Sea Snake 
Hydrophis schistosus
Amphibious Sea Snake  Laticauda colubrina                  

Pit Vipers  (Viperidae)

Shore Pit Viper  Cryptelytrops purpureomaculatus     
Hagen's Pit Viper
Parias (Trimeresurus) hageni 
Siamese Peninsula Pit Viper
Popeia fucata
Cameron Highlands Pit Viper
Popeia nebularis 
White-lipped Pit Viper
Trimeresurus albolabris 
Vogel's Green Pit Viper
Trimeresurus vogeli 
Broad-banded Pit Viper
Tropidolaemus laticinctus
  Bornean Keeled Pit Viper
T. subannulatus
  Wagler's Pit Viper
Tropidolaemus wagleri

  See also ... Snakes of Papua New Guinea