Thai National Parks

Reptiles of Thailand

Species of Thailand

Long-nosed vine snake

Binomial name: Ahaetulla nasuta (Bernard Germain Étienne comte de La Ville-sur-Illon La Cépède, 1789)

The green vine snake (Ahaetulla nasuta) ඇහැ‍ටුල්ලා (ahaetulla) in Sinhala, (పచ్చారి పాము) in Telugu, is a slender green tree snake found in India, Sri Lanka, Bangladesh, Burma, Thailand, Cambodia and Vietnam. Not to be confused with Oxybelis fulgidus, "green vine snake" found in Central and South America.


The green vine snake is diurnal and mildly venomous. The reptile normally feeds on frogs and lizards using its binocular vision to hunt. They are slow moving, relying on camouflaging as a vine in foliage. The snake expands its body when disturbed to show a black and white scale marking. Also, they may open their mouth in threat display and point their head in the direction of the perceived threat. There is a widespread myth in parts of southern India that the species uses its pointed head to blind its human victims.

The species is viviparous, giving birth to young that grow within the body of the mother, enclosed within the egg membrane. They may be capable of delayed fertilization (parthenogenesis is rare but not unknown in snakes) as a female in the London zoo kept in isolation from August, 1885 gave birth in August, 1888. The venom is mild and causes swelling. Symptoms will subside within three days.

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Scientific classification

Ahaetulla nasuta

Common names

  • German: Nasenpeitschennatter, Baumschnüffler
  • English: Long-nosed vine snake, Long-nosed tree snake, Long-nosed whip snake, Green vine snake


  • Ahaetulla nasuta, Van Stanley Bartholomew Wallach et al. (2014)
  • Ahaetulla nautus sic, Vyas (2007)
  • Ahaetulla nasutus, R.C. Sharma (2004)
  • Ahaetulla nasuta, Merel J. Cox et al. (1998)
  • Ahaetulla nasuta, Ulrich Manthey & Wolfgang Grossmann (1997)
  • Dryophis nasutus, Malcolm Arthur Smith (1943)
  • Passerita nasuta, Doris Mable Cochran (1930)
  • Dryophis mycterizans rhodonotus, Frank Wall (1921)
  • Dryophis mycterizans isabellinus, Frank Wall (1910)
  • Dryophis mycterizans tephrogaster, Frank Wall (1908)
  • Dryophis mycterizans cineroventer, Frank Wall (1908)
  • Dryophis mycterizans rhodogaster, Frank Wall (1908)
  • Dryophis mycterizans lepidorostralis, Frank Wall (1908)
  • Dryophis mycterizans, George Albert Boulenger (1890)
  • Dryinus nasutus, André Marie Constant Duméril & Gabriel Bibron (1854)
  • Dryinus fuscus, André Marie Constant Duméril & Gabriel Bibron (1854)
  • Dryiophis nasuta, Hermann Schlegel (1837)
  • Dryophis hammatorhynchus, Leopold Fitzinger (1826)
  • Dryinus oxyrhynchus, Thomas Bell (1825)
  • Dryinus russellianus, Thomas Bell (1825)
  • Dryinus nasutus, Blasius Merrem (1820)
  • Ahaetulla mycterizans, Johann Heinrich Friedrich Link (1807)
  • Coluber mycterizans, Patrick Russell (1796)
  • Coluber nasutus, Bernard Germain de Lacépède (1789)
  • Dryophis nasuta, Bernard Germain de Lacépède (1789)

Long-nosed vine snake is found in following locations in Thailand

Please note that this non-official list is not complete nor necessarily accurate. This list is a summary of checklists from other websites, blogs, publications, photo/videos published on various websites or our own findings. We appreciate your contributions with photo proof.

Distribution map of Long-nosed vine snake, Ahaetulla nasuta in Thailand

Range map of Ahaetulla nasuta in Thailand

Important note; our range maps are generated automatically based on very limited data we have about the protected sites, the data is not necessarily accurate. Please help us to improve our range maps by sharing your findings/knowledge.