Thai National Parks

Species of Thailand

Large-eyed bamboo snake

Pseudoxenodon macrops

(Edward Blyth, 1855)

In Thai: งูลายสาบตาโต, ngu lai saap dtaa dto

Pseudoxenodon macrops, commonly known as the large-eyed bamboo snake or the big-eyed bamboo snake, is a species of mildly venomous rear-fanged snake endemic to Asia.


P. macrops is a fairly variable species with brownish and almost blackish shades with short crossbars.


P. macrops preys on frogs and lizards.


P. macrops is a mildly venomous species. However, the potency of its venom is currently unknown.


P. macrops is an oviparous species. An adult female may lay as many as 10 eggs.


There are three known subspecies including, the nominotypical subspecies.

  • Pseudoxenodon macrops fukiensis
  • Pseudoxenodon macrops macrops
  • Pseudoxenodon macrops sinensis

Nota bene: A binomial authority or a trinomial authority in parentheses indicates that the species or subspecies was originally described in a genus other than Pseodoxenodon.

Geographic range

P. macrops is found in Northeast India (Darjeeling, Assam, Arunachal Pradesh, Mizoram), Nepal, Bhutan, Myanmar, Thailand, West Malaysia, Vietnam, Laos, SW China (Yunnan, Guangxi, Guangdong, Fujian, Sichuan, Guizhou ?, Gansu). It is also found in Sylhet region of Bangladesh.

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Scientific classification

Pseudoxenodon macrops

Common names

  • German: Grossaugen-Wassernatter
  • English:
    • Large-eyed false cobra
    • Large-eyed bamboo snake
    • Big-eyed bamboo snake
    • Mock cobra
  • Thai:
    • งูลายสาบตาโต, ngu lai saap dtaa dto
    • งูลายสาบคอบั้ง, ngu lai sap khor bang


  • Pseudoxenodon macrops fukiensis, Clifford H. Pope, 1928

  • Pseudoxenodon macrops macrops, Edward Blyth, 1855

  • Pseudoxenodon macrops sinensis, George Albert Boulenger, 1904


  • Pseudoxenodon macrops, WANG et al. (2022)
  • Pseudoxenodon macrops, Van Stanley Bartholomew Wallach et al. (2014)
  • Pseudoxenodon macrops sinensis, Nguyen Van Sang et al. (2009)
  • Pseudoxenodon macrops fukienensis, Nguyen Van Sang et al. (2009)
  • Pseudoxenodon macrops macrops, Nguyen Van Sang et al. (2009)
  • Pseudoxenodon macrops, Nguyen Van Sang et al. (2009)
  • Pseudoxenodon macrops macrops, Tanya Chan-Ard et al. (1999)
  • Pseudoxenodon macrops, Merel J. Cox et al. (1998)
  • Pseudoxenodon macrops, Ulrich Manthey & Wolfgang Grossmann (1997)
  • Pseudoxenodon macrops fukienensis, Ermi Zhao & Kraig Adler (1993)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)


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Pseudoxenodon macrops
Pseudoxenodon macrops
Pseudoxenodon macrops

Range Map

Distribution map of Large-eyed bamboo snake, Pseudoxenodon macrops in Thailand
  • Dan Sai District, Loei
  • Doi Inthanon National Park
  • Doi Pha Hom Pok National Park
  • Doi Phu Kha National Park
  • Doi Suthep - Pui National Park
  • Huai Kha Khaeng Wildlife Sanctuary
  • Kaeng Krachan National Park
  • Khao Soi Dao Wildlife Sanctuary
  • Khao Yai National Park
  • Mae Wang District, Chiang Mai
  • Mae Wong National Park
  • Nam Nao National Park
  • Omkoi District, Chiang Mai
  • Op Luang National Park
  • Phop Phra District, Tak
  • Phu Hin Rong Kla National Park
  • Phu Luang Wildlife Sanctuary
  • Phu Ruea National Park
  • Phu Suan Sai National Park
  • Thong Pha Phum National Park
Range map of Pseudoxenodon macrops in Thailand