Thai National Parks

Reptiles of Thailand

Species of Thailand

White-bellied rat snake

Binomial name: Ptyas fusca (Albert Charles Lewis Günther, 1858)

Ptyas fusca, commonly known as the White-bellied Rat Snake or Brown Rat Snake, is a species of colubrid snake. It is found in Indonesia, Brunei, Malaysia, Thailand and Singapore.

The White-bellied Rat Snake prefers forested habitats.They are known to prey on frogs and lizards and fish. It is known to remain still and hold neck erect when disturbed-a threatening posture.

The adults range from brown to brick-red colour on the upper surface. Ventral scales are white to pale yellowish in colour. Thick black stripes on either side of the posterior body and tail is a characteristic feature. Juveniles often greenish in coloration. The pupil is rounded and large.

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Videos of White-bellied rat snake

  • White bellied ratsnake

    White bellied ratsnake

Scientific classification

Ptyas fusca

Common names

  • German: Braune Rattenschlange
  • English: White-bellied rat snake, Brown rat snake
  • Thai: งูสิงทอง


  • Ptyas fusca, Van Stanley Bartholomew Wallach et al. (2014)
  • Ptyas fusca, Patrick David & Indraneil Das (2004)
  • Ptyas fuscus, Rudolf Malkmus et al. (2002)
  • Ptyas fuscus, Merel J. Cox et al. (1998)
  • Ptyas fuscus, Patrick David & Gernot Vogel (1996)
  • Zaocys fuscus, Ulrich Manthey (1983)
  • Zaocys fuscusv, Ulrich Manthey (1983)
  • Zaocys fuscus, Alice Georgie Cruickshank Grandison (1978)
  • Ptyas fuscus, Frank Wall (1923)
  • Zaocys fuscus, George Albert Boulenger (1893)
  • Zaocys (Zapyrus) fuscus, Oskar Boettger (1887)
  • Zapyrus fuscus, George Albert Boulenger (1885)
  • Zaocys fuscus, Albert Charles Lewis Günther (1864)
  • Coryphodon fuscus, Albert Charles Lewis Günther (1858)

White-bellied rat 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.

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Distribution map of White-bellied rat snake, Ptyas fusca in Thailand

Range map of Ptyas fusca 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.