Species of Thailand

Keeled rat snake

Ptyas carinata, Albert Charles Lewis Günther, 1858

(In Thai: งูสิงหางดำ, ngu sing hang damm)

Commonly known as the Keeled Rat Snake, Ptyas carinata is a species of colubrid snake. It is found in Indonesia, Myanmar, Malaysia, Thailand, Philippines, Cambodia, Vietnam and Singapore.

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Scientific classification

Ptyas carinata

Common names

  • German: Gekielte Rattenschlange
  • English: Keeled rat snake
  • Thai:
    • งูสิงหางดำ, ngu sing hang damm
    • งูสิงดง, ngu sing dong
    • งูเห่าดง, ngu haow dong


  • Ptyas carinata, Van Stanley Bartholomew Wallach et al. (2014)
  • Ptyas carinata, Patrick David & Indraneil Das (2004)
  • Ptyas carinatus, Rudolf Malkmus et al. (2002)
  • Zaocys carinatus, Rooijen & Rooijen (2002)
  • Zaocys carinatus, Larry Lee Grismer et al. (2002)
  • Ptyas carinatus, Merel J. Cox et al. (1998)
  • Zaocys carinatus, Ulrich Manthey & Wolfgang Grossmann (1997)
  • Ptyas carinatus, Patrick David & Gernot Vogel (1996)
  • Zaocys carinatus, Alice Georgie Cruickshank Grandison (1978)
  • Zaocys carinatus, Malcolm Arthur Smith (1943)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)


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Ptyas carinata, Kaeng Krachan NP
Ptyas carinata
Ptyas carinata
Ptyas carinata
Ptyas carinata
Ptyas carinata, Kaeng Krachan NP
Ptyas carinata, Kaeng Krachan NP
Ptyas carinata (juvenile), Bang Lang NP

Range Map

Distribution map of Keeled rat snake, Ptyas carinata in Thailand
  • Bang Lang National Park
  • Bannang Sata District, Yala
  • Cha-uat District, Nakhon Si Thammarat
  • Doi Suthep - Pui National Park
  • Hala-Bala Wildlife Sanctuary
  • Huai Kha Khaeng Wildlife Sanctuary
  • Kaeng Krachan National Park
  • Kathu District, Phuket
  • Khao Chong
  • Khao Luang National Park
  • Khao Phanom Bencha National Park
  • Khao Soi Dao Wildlife Sanctuary
  • Khao Sok National Park
  • Khuan Kalong District, Satun
  • Ko Lanta District, Krabi
  • Kui Buri National Park
  • Mae Sot District, Tak
  • Mueang Chiang Mai District, Chiang Mai
  • Mueang Tak District, Tak
  • Ngao District, Lampang
  • Omkoi District, Chiang Mai
  • Phop Phra District, Tak
  • Salak Pra Wildlife Sanctuary
  • Si Banphot District, Phatthalung
  • Sikao District, Trang
  • Tha Sala District, Nakhon Si Thammarat
  • Thale Ban National Park
  • Thong Pha Phum District, Kanchanaburi
  • Thung Hua Chang District, Lamphun
  • Thung Song District, Nakhon Si Thammarat
  • Thung Yai Naresuan Wildlife Sanctuary
  • Umphang District, Tak
  • Wang Nuea District, Lampang
Range map of Ptyas carinata in Thailand