How to Identify Wall's Krait (Identification Guide)
A guide to recognizing Wall's Krait through its dark, faintly patterned body, smooth scales, and distribution in South and Southeast Asian lowlands.
Read the full Wall's Krait encyclopedia entry →
Key identifying features
Wall's Krait is a slender, glossy elapid named after herpetologist Frank Wall. It shows the typical krait silhouette: a smooth, rounded body, a short tail, a head barely distinct from the neck, and a row of enlarged vertebral scales running down the spine that gives the back a subtly ridged profile.
Coloration & pattern
The body is generally dark brown to blackish, with faint, narrow pale crossbands or speckling that can be indistinct compared to more boldly banded kraits. In some individuals the pattern is reduced to faint paired dots or smudges along the back rather than clean bands. The underside is plain pale white or cream.
Head, eyes & scales
The head is small and rounded, colored uniformly dark, with small eyes and round pupils typical of kraits. Scales are smooth and glossy throughout, and the enlarged hexagonal vertebral scale row remains the most dependable diagnostic feature, especially when body pattern is faint or worn.
Size & body shape
Adults usually measure between 60 and 90 centimeters, with a slim, evenly cylindrical body and a short, tapering tail. The rounded, non-flattened body shape helps separate it from vipers sharing its range.
Range & habitat where you'll see it
Wall's Krait occurs across parts of South and Southeast Asia in lowland forest, scrub, agricultural areas, and near human settlements. It is nocturnal and terrestrial, often found near water sources or under ground cover during the day.
How to tell it apart from look-alikes
Because its pattern is often faint, Wall's Krait can be mistaken for uniformly dark colubrids; the raised row of enlarged vertebral scales is the most consistent way to confirm krait identity. It lacks the hood of cobras and the triangular, pitted head of vipers, and its glossier, smoother scale texture distinguishes it from most sympatric non-venomous snakes.
Frequently asked questions
How faint is the pattern on Wall's Krait?
It can be quite subtle, sometimes reduced to faint pale specks or smudges rather than clear crossbands, especially in adults.
What is the best way to confirm identification?
Look for the row of enlarged hexagonal scales down the middle of the back, a feature unique to true kraits.
Where does Wall's Krait live?
It inhabits lowland forest, scrub, and agricultural land across parts of South and Southeast Asia.
Is it active during daylight hours?
No, it is nocturnal and typically hides under cover during the day.
Does it have a triangular head like a viper?
No, its head is small and rounded, not triangular, and lacks heat-sensing pits.