How to Identify the Greater Black Krait (Identification Guide)
The Greater Black Krait is identified by its large size, deep glossy black body, and faint or absent banding compared to related krait species.
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Key identifying features
The Greater Black Krait (Bungarus niger) is notable among kraits for its predominantly solid, deep black or very dark brown coloration, with crossbanding that is faint, incomplete, or entirely absent in adults, distinguishing it from the more boldly banded kraits. A single row of enlarged vertebral scales along the spine remains a key diagnostic feature shared with other kraits.
Coloration & pattern
Adults are typically a uniform glossy black or very dark brown along the back, often lacking visible crossbands, though faint, narrow pale bands may sometimes be seen, particularly toward the tail. Juveniles tend to show more distinct thin white or pale crossbands than adults, which fade with maturity. The belly is pale, usually white or cream, contrasting with the dark dorsal coloration.
Head, eyes & scales
The head is small and only slightly distinct from the neck, with small eyes and round pupils typical of the genus. Scales are smooth and glossy. The enlarged vertebral scale row creates a subtle ridge along the back, consistent with other krait species.
Size & body shape
This is one of the larger kraits, with adults commonly reaching 1.5 meters or more. The body is moderately slender to relatively robust, with the characteristic subtly triangular cross-section from the raised vertebral ridge.
Range & habitat where you'll see it
The Greater Black Krait occurs in parts of northeastern India, Nepal, Bhutan, Bangladesh, and Myanmar. It inhabits lowland and submontane forests, grasslands, and agricultural areas, often near water sources. It is nocturnal and terrestrial, sheltering by day in burrows or under debris.
How to tell it apart from look-alikes
The near-absence of crossbanding in adults readily distinguishes the Greater Black Krait from strongly banded species such as the Banded Krait or Many-Banded Krait. It can superficially resemble other predominantly dark, unbanded snakes, but the enlarged vertebral scale row and overall krait body proportions help confirm identification. Juveniles, which do show faint banding, can be mistaken for young Common Kraits, but the Greater Black Krait's larger adult size and typically darker, more uniform coloration help separate the two as they mature.
Frequently asked questions
Why is the Greater Black Krait harder to identify by banding alone?
Adults often lose most or all crossbanding, appearing nearly uniform black or dark brown, unlike the boldly banded patterns of related krait species.
Do juvenile Greater Black Kraits look different from adults?
Yes, juveniles typically show faint thin pale crossbands that fade as the snake matures into a more uniformly dark adult.
What scale feature helps confirm this snake is a krait?
A single row of enlarged vertebral scales running down the spine, forming a subtle ridge along the back.
Where does the Greater Black Krait typically live?
Lowland and submontane forests, grasslands, and farmland in northeastern India, Nepal, Bhutan, Bangladesh, and Myanmar, often near water.