Species of Thailand

Rainbow mud snake

Enhydris enhydris, Johann Gottlob Theaenus Schneider, 1799

(In Thai: งูสายรุ้ง, ngu sai rung)

The rainbow water snake, Enhydris enhydris, is a species of mildly venomous, rear-fanged, colubrid snake, endemic to Asia.

Geographic range

E. enhydris is found in southeastern China, Indonesia (Bangka, Belitung, Java, Kalimantan, Sulawesi, Sumatra, We), Bangladesh, Cambodia, central and eastern India, Laos, Malaysia (Malaya and East Malaysia, Borneo, Pulau Tioman), Myanmar (Burma), Nepal, Pakistan, Singapore (?), Sri Lanka, Pulau Bangka, Thailand, and Vietnam.

Type locality: "Indiae orientalis"

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Scientific classification

Enhydris enhydris

Common names

  • German: Gestreifte Wassertrugnatter
  • English:
    • Rainbow mud snake
    • Rainbow water snake
    • Striped water snake
    • Smooth water snake
  • Thai: งูสายรุ้ง, ngu sai rung


  • Enhydris enhydris, John C. Murphy & Harold Knight Voris (2014)
  • Enhydris enhydris, Nguyen Van Sang et al. (2009)
  • Enhydris enhydris, Merel J. Cox et al. (1998)
  • Enhydris enhydris, Ulrich Manthey & Wolfgang Grossmann (1997)
  • Enhydris enhydris, Malcolm Arthur Smith (1943)
  • Hypsirhina enhydris enhydris, René Léon Bourret (1934)
  • Enhydris enhydris, Thomas Barbour (1912)
  • Hypsirhina enhydris var. bilineata, Volz (1904)
  • Hypsirhina enhydris, Giorgio Jan (1863)
  • Hypsirhina enhydris, Auguste Henri André Duméril & Gabriel Bibron (1854)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)


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Enhydris enhydris
Rainbow water snake
Rainbow water snake (enhydris enhydris)

Range Map

Distribution map of Rainbow mud snake, Enhydris enhydris in Thailand
  • Amphawa District, Samut Songkhram
  • Ban Pho District, Chachoengsao
  • Bang Bo District, Samut Prakan
  • Bang Phli District, Samut Prakan
  • Bang Yai District, Nonthaburi
  • Bangkok Province
  • Chom Bueng District, Ratchaburi
  • Don Chedi District, Suphan Buri
  • Hankha District, Chainat
  • Khao Yai Da
  • Khao Yoi District, Phetchaburi
  • Khlong Khuean District, Chachoengsao
  • Khlong Luang District, Pathum Thani
  • Khuan Khanun District, Phatthalung
  • Khukhan District, Sisaket
  • Lam Luk Ka District, Pathum Thani
  • Lan Sak District, Uthai Thani
  • Lom Sak District, Phetchabun
  • Mae On District, Chiang Mai
  • Mae Poen District, Nakhon Sawan
  • Mueang Chaiyaphum District, Chaiyaphum
  • Mueang Chanthaburi District, Chanthaburi
  • Mueang Chonburi District, Chonburi
  • Mueang Kamphaeng Phet District, Kamphaeng Phet
  • Mueang Khon Kaen District, Khon Kaen
  • Mueang Nakhon Pathom District, Nakhon Pathom
  • Mueang Nakhon Ratchasima District, Nakhon Ratchasima
  • Mueang Nakhon Sawan District, Nakhon Sawan
  • Mueang Pattani District, Pattani
  • Mueang Phetchaburi District, Phetchaburi
  • Mueang Phichit District, Phichit
  • Mueang Rayong District, Rayong
  • Mueang Samut Prakan District, Samut Prakan
  • Mueang Satun District, Satun
  • Na Yong District, Trang
  • Nakhon Thai District, Phitsanulok
  • Nang Rong District, Buriram
  • Pak Thong Chai District, Nakhon Ratchasima
  • Pang Sida National Park
  • Phetchaburi Coast
  • Phra Samut Chedi District, Samut Prakan
  • Phrom Khiri District, Nakhon Si Thammarat
  • Prachantakham District, Prachinburi
  • Su-ngai Kolok District, Narathiwat
  • Sung Noen District, Nakhon Ratchasima
  • Suwannaphum District, Roi Et
  • Tak Bai District, Narathiwat
  • Tarutao National Marine Park
  • Tha Takiap District, Chachoengsao
  • Thanyaburi District, Pathum Thani
  • Ubolratana District, Khon Kaen
  • Wang Thong District, Phitsanulok
  • Watthana Nakhon District, Sa Kaeo
  • Wichian Buri District, Phetchabun
  • Yang Talat District, Kalasin
Range map of Enhydris enhydris in Thailand