The triangle keelback (''Xenochrophis trianguligerus'') is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

snake Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes . Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more j ...

found in Brunei Darussalam, Burma (Myanmar),

Cambodia Cambodia (; also Kampuchea ; km, កម្ពុជា, UNGEGN: ), officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia, spanning an area of , bordered by Thailan ...

India India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the ...

( Nicobar Islands;

Arunachal Pradesh Arunachal Pradesh (, ) is a state in Northeastern India. It was formed from the erstwhile North-East Frontier Agency (NEFA) region, and became a state on 20 February 1987. It borders the states of Assam and Nagaland to the south. It share ...

(Deban - Changlang district)),

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

(Nias, Mentawai, Sumatra, Laos, Malaysia (Malaya and East Malaysia), Singapore, Thailand, and Vietnam. The type locality is Java.

Gallery

Image:Triangle-keelback-xenochrophis-trianguligerus-1.jpg, ''Xenochrophis trianguligerus'' from

Kaeng Krachan National Park Kaeng Krachan National Park ( th, อุทยานแห่งชาติแก่งกระจาน, , ) is the largest national park of Thailand. It is on the border with Burma, contiguous with the Tanintharyi Nature Reserve. It is a po ...

. Image:Xenoch triangul 060104 tdp.jpg, Body close-up of ''X. trianguligerus'', showing triangle marks. Image:Xenoch triangul 070201 ppe.jpg, ''Xenochrophis trianguligerus'' from East

Borneo Borneo (; id, Kalimantan) is the List of islands by area, third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java Isl ...

References

Friedrich Boie Friedrich Boie (4 June 1789 – 3 March 1870) was a German entomologist, herpetologist, ornithologist, and lawyer.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University ...

1827 Bemerkungen über Merrem's Versuch eines Systems der Amphibien, 1. Lieferung: Ophidier. Isis van Oken, Jena, 20: 508–566. * Xenochrophis Reptiles described in 1827 Taxa named by Friedrich Boie Reptiles of Cambodia Reptiles of Myanmar {{Colubrids-stub