Hidden for 15 years, this tiny reed snake is finally discovered in Mizoram

Calamaria mizoramensis, has been discovered in Mizoram. (Image: X/@EastMojo)

• New reed snake species, Calamaria mizoramensis, found in Mizoram.
• The snake was misidentified for years due to its secretive habits and small size.
• Discovery underscores India's biodiversity and urgent need for forest conservation.

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Could a snake hide in plain sight for over a decade? Scientists have discovered Calamaria mizoramensis, a tiny, secretive reed snake in Mizoram. Previously misidentified, this small, non-venomous species is now confirmed as new to science. The find highlights India’s stunning, unexplored biodiversity and proves that even familiar forests can hold extraordinary surprises.

Where was this mysterious snake found?

The snake was spotted in forested hills around Aizawl, Reiek and Kolasib districts of Mizoram at elevations between 670 and 1,295 metres. It prefers moist soils, leaf litter and logs, making it incredibly hard to spot. The discovery was led by Mizoram University, in collaboration with scientists from Russia, Germany and Vietnam. Specimens collected since 2008 were long thought to belong to another species until now.

STORY | New reed snake species identified in Mizoram

A team of scientists from Mizoram, in collaboration with researchers from Russia, Germany and Vietnam, has identified a new species of reed snake from the state, correcting a long-standing taxonomic misidentification and… pic.twitter.com/gzPWga8iek — Press Trust of India (@PTI_News) January 6, 2026

What makes Calamaria mizoramensis so special?

This snake is semi-fossorial, living partly underground and nocturnal, only emerging at night. Genetic analysis shows it differs by over 15% from its closest relatives which is enough to qualify this as a new species. It is completely harmless to humans, yet its distinct colouration and scale patterns make it stand out in the forest.

Why did it take 15 years to identify?

The snake’s secretive habits kept it hidden from scientists. Its small size and similarity to other reed snakes made it easy to overlook. Only through modern DNA and detailed morphological studies was its unique identity confirmed. This shows how much biodiversity remains undiscovered, even in well-studied regions like Northeast India.

Could this snake reveal secrets about Mizoram’s forests?

Yes. Its discovery adds to Mizoram’s record: 169 amphibians and reptiles, including 117 reptiles. Calamaria mizoramensis_ acts as a living clue to understanding forest ecology and adaptation. Researchers suggest more hidden species may lurk in the hills, waiting for exploration. Every new discovery reshapes our understanding of evolution and habitat diversity.

Is this snake under threat?

Currently, it is considered “Least Concern” on the IUCN Red List. Found in multiple sites and facing no immediate threats, the snake seems stable for now. But scientists warn that deforestation, climate change, and human activity could pose future risks. The discovery underlines the importance of protecting Mizoram’s forests for both known and unknown species.