---
title: "Triangle Keelback"
description: "Xenochrophis trianguligerus — Répteis. The triangle keelback (Xenochrophis trianguligerus) is a species of snake found in Brunei Darussalam, Burma (Myanmar), Cambodia, India (Nicobar Islands; Arunachal Pradesh (Deban - Changlang district)), Indonesia (Nias, Mentawai, Sumatra, Laos, Malaysia (Malaya and East Malaysia), Singapore, Thailand, and Vietnam."
canonical: https://animalchecklist.com/pt/animal/triangle-keelback
last_updated: 2026-09-20
---

# Triangle Keelback

> Xenochrophis trianguligerus — Répteis. The triangle keelback (Xenochrophis trianguligerus) is a species of snake found in Brunei Darussalam, Burma (Myanmar), Cambodia, India (Nicobar Islands; Arunachal Pradesh (Deban - Changlang district)), Indonesia (Nias, Mentawai, Sumatra, Laos, Malaysia (Malaya and East Malaysia), Singapore, Thailand, and Vietnam.

- Scientific name: *Xenochrophis trianguligerus*
- Category: `reptiles` (Répteis)
- Habitats: `freshwater` (Lagos e rios), `jungle` (Selva)
- iNaturalist observations: 878
- Wikidata: [Q2708236](https://www.wikidata.org/wiki/Q2708236)
- iNaturalist taxon: [28055](https://www.inaturalist.org/taxa/28055)

## Names

- en: Triangle Keelback
- de: Dreiecks-Fischnatter

## Countries with the most observations

ID (425), MY (279), TH (111), BN (3)

## Summary

The triangle keelback (Xenochrophis trianguligerus) is a species of snake found in Brunei Darussalam, Burma (Myanmar), Cambodia, India (Nicobar Islands; Arunachal Pradesh (Deban - Changlang district)), Indonesia (Nias, Mentawai, Sumatra, Laos, Malaysia (Malaya and East Malaysia), Singapore, Thailand, and Vietnam.
The type locality is Java.

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Triangle_keelback

## Photo

![Triangle Keelback](https://animalchecklist.com/img/animals/triangle-keelback/medium.jpg)

Photo: Kelly Abram · CC0 · inaturalist — https://www.inaturalist.org/observations/321846636

## Machine access

`GET https://animalchecklist.com/api/v1/animals/triangle-keelback?lang=pt` — see [openapi.json](https://animalchecklist.com/openapi.json).