Thai National Parks

Species of Thailand

Western mangrove cat snake

Boiga melanota

(George Albert Boulenger, 1896)

In Thai: งูปล้องทอง, ngu plong thong

Boiga melanota, the western mangrove cat snake, is one of the biggest cat snake species in Asia. It is found in Thailand, West Malaysia, Singapore, and Indonesia (Sumatra). It is shiny bluish black in colour, marked with 40-50 yellow stripes. The mouth and throat area are yellow, whereas the ventral part of the body is yellowish black. The eyes are greyish in colour. It is categorised as a mildly venomous snake.


An adult mangrove snake can reach a length of 2.5 m. It is active at night (nocturnal) and hunts for birds, rats and birds eggs as its main diet. Its large head and mouth enables it to swallows its prey easily.

Recently reclassed from within the Dendrophila family, they share some physical traits such as similar colouring and being rear-fanged.

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Scientific classification

Boiga melanota

Common names

  • English:
    • Western mangrove cat snake
    • Banded mangrove cat snake
  • Thai:
    • งูปล้องทอง, ngu plong thong
    • งูตามธาร, ngu tam than


  • Boiga dendrophila annectens, George Albert Boulenger, 1896

  • Boiga dendrophila dendrophila, Friedrich Boie, 1827

  • Boiga dendrophila divergens, Edward Harrison Taylor, 1922

  • Boiga dendrophila gemmicincta, André Marie Constant Duméril & Gabriel Bibron, 1854

  • Boiga dendrophila latifasciata, George Albert Boulenger, 1896

  • Boiga dendrophila levitoni, Maren Gaulke, Arnold D. Demegillo & Gernot Vogel, 2005

  • Boiga dendrophila melanota, George Albert Boulenger, 1896

  • Boiga dendrophila multicincta, George Albert Boulenger, 1896

  • Boiga dendrophila occidentalis, Léo Daniël Brongersma, 1934


  • Boiga melanota, Weinell (2020)
  • Boiga melanota, Henrik Bringsøe (2020)
  • Boiga dendrophila melanota, Krug (2017)
  • Boiga dendrophila melanota, Merel J. Cox et al. (2012)
  • Boiga denrophila sic melanota, Andreas Gumprecht (2005)
  • Boiga dendrophila melanota, Tanya Chan-Ard et al. (1999)
  • Boiga dendrophila melanota, Merel J. Cox et al. (1998)
  • Boiga dendrophila melanota, Mehrtens (1987)
  • Boiga dendrophila melanota, Léo Daniël Brongersma (1934)
  • Dipsadomorphus dendrophilus type B., Lange & Nelly de Rooij (1910)


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Boiga melanota
Boiga melanota - Bang Lang National Park
Boiga melanota - Khao Sok National Park
Boiga melanota - Mueang Krabi District, Krabi
Boiga melanota (juvenile) - Khao Sok National Park

Range Map

Distribution map of Western mangrove cat snake, Boiga melanota in Thailand
  • Ban Na San District, Surat Thani
  • Bang Lang National Park
  • Betong District, Yala
  • Chai Buri District, Surat Thani
  • Don Sak District, Surat Thani
  • Hala-Bala Wildlife Sanctuary
  • Huai Yot District, Trang
  • Kaeng Krung National Park
  • Kapong District, Phang Nga
  • Khao Chong
  • Khao Lak - Lam Ru National Park
  • Khao Luang National Park
  • Khao Nam Khang National Park
  • Khao Nan National Park
  • Khao Phanom Bencha National Park
  • Khao Phra - Bang Khram Wildlife Sanctuary
  • Khao Sok National Park
  • Khlong Hoi Khong District, Songkhla
  • Khlong Phanom National Park
  • Khlong Saeng Wildlife Sanctuary
  • Khlong Yan Wildlife Sanctuary (s/e)
  • Khok Pho District, Pattani
  • Khuan Khanun District, Phatthalung
  • Ko Samui District, Surat Thani
  • Lam Nam Kra Buri National Park
  • Lan Saka District, Nakhon Si Thammarat
  • Mueang Krabi District, Krabi
  • Mueang Narathiwat District, Narathiwat
  • Mueang Phang Nga District, Phang Nga
  • Mueang Phatthalung District, Phatthalung
  • Mueang Yala District, Yala
  • Na Thawi District, Songkhla
  • Ngao Waterfall National Park
  • Phipun District, Nakhon Si Thammarat
  • Phuket Province
  • Rattaphum District, Songkhla
  • Si Sakhon District, Narathiwat
  • Sichon District, Nakhon Si Thammarat
  • Sirindhorn Peat Swamp Forest
  • Su-ngai Kolok District, Narathiwat
  • Suk Samran District, Ranong
  • Takua Pa District, Phang Nga
  • Tha Chana District, Surat Thani
  • Thale Ban National Park
  • Thepha District, Songkhla
  • Thung Wa District, Satun
  • Ton Nga-Chang Wildlife Sanctuary
  • Waeng District, Narathiwat
  • Yan Ta Khao District, Trang
  • Yaring District, Pattani
Range map of Boiga melanota in Thailand