Wildlife Guide: Discover the Most Notable Water Snakes Found Across Vietnam

Vietnam is home to a diverse array of reptile species, particularly snakes that thrive in its abundant waterways, rice paddies, and tropical forests. While many people fear these creatures, understanding their characteristics and habitats is crucial for both safety and conservation. From the common Ornate Flying Snake to the rarer Red-necked Keelback, Vietnam's water-dwelling serpents come in a variety of colors, sizes, and levels of toxicity. This guide explores some of the most notable species you might encounter in the Vietnamese wilderness.

One of the most visually striking species is the Ornate Flying Snake (Chrysopelea ornata), also known as the 'Cườm' snake. Reaching up to 1.3 meters in length, this snake is found throughout the country. Despite its name, it doesn't truly fly but glides between trees. Another common inhabitant is the Rainbow Water Snake (Enhydris enhydris), typically found in the southern regions from Phu Yen to Ca Mau. These snakes are often seen in ponds and slow-moving streams, feeding on small fish and amphibians. Similarly, the Jagor’s Water Snake (Enhydris jagorii) is prevalent in the Central Highlands and Southern Vietnam.

For those trekking in the mountains, the False Cobra (Pseudoxenodon macrops) is a fascinating find. It earns its name from its ability to flatten its neck when threatened, mimicking a real cobra to scare off predators. It is found in mountainous regions from the North to the Central Highlands. On the more dangerous side, the Red-necked Keelback (Rhabdophis subminiatus) is a species that requires caution. While once thought to be harmless, it is now known to possess toxic saliva and can be dangerous if it bites. This snake is easily identified by the bright red patch behind its head and is found all over Vietnam.

Other interesting species include the Plumbeous Water Snake (Hypsiscopus plumbea), common in the Mekong Delta, and the Baron’s Kukri Snake (Oligodon barroni), found in coastal provinces like Khanh Hoa and Binh Duong. The rare Sand Snake (Psammophis condanarus) has also been recorded in the arid regions of Ninh Thuan. Whether it's the large Bocourt’s Water Snake (Subsessor bocourti) or the small Mouhot’s Kukri Snake, each plays a vital role in the ecosystem by controlling pest populations. Protecting these species and their habitats is essential for maintaining Vietnam's rich biodiversity.

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