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Category Archives: Sunbeam Snakes

Sunbeam Snake

Xenopeltis unicolor

Sunbeam Snake Xenopeltis unicolor

Sunbeam Snake found in Krabi Province (photo courtesy of Tom Charlton, http://www.venomlogic.com)

Sunbeam Snake Xenopeltis unicolor found under board

Sunbeam Snake found under board at night in Prawet

Sunbeam Snake Xenopeltis unicolor in hand in Prawet

Sunbeam Snake found at edge of marsh at night in Prawet

Sunbeam Snake Xenopeltis unicolor in Prawet head shot

Head shot of Sunbeam Snake

Sunbeam Snake Xenopeltis unicolor

Sunbeam Snake in Laos (photo courtesy of Thomas Calame)

Sunbeam Snake showing iridescence in Singapore

Sunbeam Snake in Singapore (Image by Nick Baker, http://www.ecologyasia.com)

Sunbeam Snake Xenopeltis unicolor digging into earth

Sunbeam Snake digging in Khao Phra Thaew (photo courtesy of http://khaophrathaew.org/)

Asian Sunbeam Snake Xenopeltis unicolor

Juvenile Sunbeam Snake found in Vietnam (photo courtesy of Scott Trageser http://www.naturestills.com)

Sunbeam Snake Vietnam Xenopeltis unicolor Alex Krohn 1

Sunbeam Snake trapped in Vietnam (photo courtesy of Alex Krohn)

Sunbeam Snake Xenopeltis unicolor dead DOR

Sunbeam Snake killed by a car on road in Chiang Mai Province

English name: Sunbeam Snake (aka: “Iridescent Earth Snake”)
Scientific name: Xenopeltis unicolor
Thai name: Ngu Saeng-a-tit

Description: To 130cm long. The head is shaped like a wedge, helping it to dig into soil. The scales of the Sunbeam Snake are highly iridescent and give off many colors in sunlight, leading to its common name. Otherwise the body is reddish brown to blackish on top and whitish-gray below. Juveniles have a white collar around the neck.

Similar Species: Red-tailed Pipe Snake has a shorter, thicker tail and black/white bands on the underbelly.
Yellow-bellied Water Snake is not nearly as iridescent, has a broad head as opposed to a narrow wedge-shaped head, and is yellow-to-cream on the bottom.
Rainbow Water Snake has light and dark lines running down its body rather than iridescent scales and has a longer, skinnier tail.

Habitat: Open areas such as forest clearings, scrubland, marshes, rice paddies, parks, and gardens. Hides in rodent burrows, decaying vegetation and compost heaps during the day. Only comes out from under cover on overcast or rainy days and at night.

Contribution to the ecosystem: The Sunbeam Snake helps control rat and mice populations by eating small rodents, as well as frogs, lizards, and other snakes. It provides food for larger snakes and monitors.

Danger to humans: Rarely bites, has no venom and is not dangerous to humans.

Conservation status and threats: Is currently common due to its wide distribution and tolerance for many habitats, including areas close to human habitation. However, it is captured in large numbers for its skins and the pet trade and thus could face declines in the future.

Interesting facts: When bothered, the Sunbeam Snake will jerk its body around and shake its tail as a warning, but will almost never even open its mouth to bite. It also produces a very foul-smelling musk.

References:
IUCN Redlist: Xenopeltis unicolor
Siam-Info: Xenpoeltidae
Wikipedia: Xenopeltidae
Wikipedia: Xenopeltis unicolor
Nature Malaysia: Sunbeam Snake
Thailand Office of Environmental Planning and Policy: A Checklist of Amphibians and Reptiles in Thailand
A Photographic Guide to Snakes and Other Reptiles of Peninsular Malaysia, Singapore and Thailand
A Field Guide to the Reptiles of South-East Asia

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