Thai National Parks

Snakes of Thailand

Species of Thailand

Green tree snake

In Thai: งูทางมะพร้าวเขียว

Binomial name: Gonyosoma prasinum, Edward Blyth, 1854

Gonyosoma prasinum (green trinket snake, green bush rat snake or green ratsnake) is a species of colubrid snake found in Asia.


Rostral a little broader than deep, just visible from above; suture between the internasals a little shorter than that between the prefrontals; frontal as long as its distance from the end of the snout, shorter than the parietals; loreal square or longer than deep; one or two preoculars; temporals 1+2 or 2+2; upper labials 9, fourth, fifth, and sixth entering the eye; 5 lower labials in contact with the anterior chin-shields, which are as long as the posterior or a little longer. Scales in 19 rows, the 9 to 11 middle rows feebly keeled m the adult, smooth in the young. Ventrals with a lateral keel, 198 to 206; anal entire or divided; subcaudals 100–107. Uniform bright green above; upper lip and lower surface yellowish or greenish white. Total length 3 feet: tail 9 inches.


Its habitat ranges include Bangladesh, India (Darjeeling, Assam, Arunachal Pradesh, Burma (also known as Myanmar), northern Thailand, west Malaysia, Laos, Vietnam, China (Yunnan, Guizhou, Hainan) and Philippines.

This article uses material from Wikipedia released under the Creative Commons Attribution-Share-Alike Licence 3.0. Eventual photos shown in this page may or may not be from Wikipedia, please see the license details for photos in photo by-lines.

Scientific classification

Gonyosoma prasinum

Common names

  • German:
    • Grüne Strauchnatter
    • Grüne Spitzkopfnatter
  • English:
    • Green tree snake
    • Green mountain racer
    • Green tree racer
    • Green bush rat snake
    • Green ratsnake
    • Green trinket snake
  • Thai: งูทางมะพร้าวเขียว


  • Gonyosoma prasina, Tanya Chan-Ard et al. (2015)
  • Gonyosoma prasinum, Xin Chen et al. (2014)
  • Gonyosoma prasinus, Chen et al. (2014)
  • Rhynchophis prasinus, Van Stanley Bartholomew Wallach et al. (2014)
  • Rhadinophis prasina, Hussam Zaher et al. (2012)
  • Gonyosoma prasinum, Nguyen Van Sang et al. (2009)
  • Elaphe prasina, Bryan L. Stuart & Harold Heatwole (2008)
  • Rhadinophis prasina, Frank T. Burbrink (2007)
  • Elaphe prasina, Indraneil Das & Norsham S. Yaakob (2007)
  • Gonyosoma prasinum, Thomas Ziegler et al. (2007)
  • Gonyosoma prasinum, Urs Utiger et al. (2005)
  • Gonyosoma prasinum, Patrick David et al. (2004)
  • Elaphe prasina, Merel J. Cox et al. (1998)
  • Elaphe prasina, Ulrich Manthey & Wolfgang Grossmann (1997)
  • Gonyosoma prasina, Indraneil Das (1997)
  • Elaphe prasina, Klaus-Dieter Schulz (1996)
  • Gonyosoma prasina, Samuel Booker McDowell & Jenner (1988)
  • Elaphe prasina, Alice Georgie Cruickshank Grandison (1978)
  • Elaphe prasina, Michael Wilmer Forbes Tweedie (1950)
  • Elaphe prasina, Malcolm Arthur Smith (1943)
  • Elaphe prasina, Malcolm Arthur Smith (1930)
  • Coluber prasinus, George Albert Boulenger (1894)
  • Gonyosoma gramineum, Albert Charles Lewis Günther (1864)
  • Coluber prasinus, Edward Blyth (1854)


Green trinket snake
Rhadinophis prasinus

Range Map

Distribution map of Green tree snake, Gonyosoma prasinum in Thailand
Range map of Gonyosoma prasinum in Thailand