Thai National Parks

Snakes of Thailand

Species of Thailand

White-spotted slug snake

In Thai: งูกินทากจุดขาว, ngu gin thaag jud khao

Binomial name: Pareas margaritophorus, Giorgio Jan, 1866

The spotted slug snake (also known as the white-spotted slug snake or mountain slug snake; Pareas margaritophorus) is a small, harmless species of snake that is rather common and feeds on small invertebrates.


Spotted slug snakes are forest-dwellers that are about small to medium sized. They have fangs that are located on their lower jaw in which they can use to remove the snail from their shells to eat. They have blunt heads that are wider than their actual body width. It averages about 47 cm in length and can be spotted by its collar that can be yellow or orange with a grey or brown body. It also has black scales with a pale underside with dark spots.


The Spotted slug snake is a nocturnal species that is active on the forest floor or on shallow vegetation that are usually found in lowland or lower mountain forests that are at the elevation of 1500 meters.


Spotted slug snakes feed on the following invertebrates:

  • snails
  • slugs
  • earthworms


It found in India (Darjeeling), Bangladesh, Myanmar, Thailand, Laos, Vietnam, Northwest Malaysia and South China (Yunnan, Guangxi, Guangdong).

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Scientific classification

Pareas margaritophorus

Common names

  • German: Weissflecken-Schneckennatter
  • English: White-spotted slug snake
  • Thai: งูกินทากจุดขาว, ngu gin thaag jud khao


  • Pareas margaritophorus, Tanya Chan-Ard et al. (2015)
  • Pareas macularius, Tanya Chan-Ard et al. (2015)
  • Pareas margaritophorus, Van Stanley Bartholomew Wallach et al. (2014)
  • Pareas macularius, Van Stanley Bartholomew Wallach et al. (2014)
  • Pareas macularius, Nguyen Van Sang et al. (2009)
  • Pareas macularius, Guo & Deng (2008)
  • Pareas macularius, Romulus Whitaker & Ashok Captain (2004)
  • Pareas margaritophorus, Thomas Ziegler (2002)
  • Pareas macularius, H. Hermann Schleich & Werner Kästle (2000)
  • Pareas macularius, Tanya Chan-Ard et al. (1999)
  • Pareas margaritophorus, Merel J. Cox et al. (1998)
  • Pareas margaritophorus, Ulrich Manthey & Wolfgang Grossmann (1997)
  • Dipsas margaritophorus, Nguyen & Ho (1996)
  • Pareas macularius, Indraneil Das (1996)
  • Pareas macularius, Edward Harrison Taylor (1965)
  • Pareas margaritophorus, Malcolm Arthur Smith (1943)
  • Pareas macularius, Malcolm Arthur Smith (1943)
  • Amblycephalus tamdaoensis, René Léon Bourret (1935)
  • Amblycephalus modestus, Frank Wall (1909)
  • Amblycephalus andersoni, Frank Wall (1908)
  • Pareas andersonii, George Albert Boulenger (1888)
  • Pares moellendorffi, Oskar Boettger (1885)
  • Pareas margaritophorus, William Theobald (1876)
  • Pareas modestus, William Theobald (1868)
  • Pareas macularius, William Theobald (1868)
  • Leptognathus margaritophorus, Giorgio Jan (1866)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)


Pareas margaritophorus
White-spotted slug snake
Pareas margaritophorus (yellow nape)
Pareas margaritophorus
Pareas margaritophorus
Pareas margaritophorus

Range Map

Distribution map of White-spotted slug snake, Pareas margaritophorus in Thailand
Range map of Pareas margaritophorus in Thailand