How to Identify the Striped Keelback (Identification Guide)

Key identifying features

The Striped Keelback is a slender, diurnal colubrid readily identified by bold longitudinal stripes running the length of its body, in contrast to many related keelbacks that show crossbands or blotches instead. Its strongly keeled dorsal scales give it a rough, matte texture typical of the keelback group.

Coloration & pattern

The body ground color ranges from olive-brown to yellowish-tan, marked with distinct pale stripes bordered by darker lines running from behind the head to the tail. The number and prominence of stripes can vary between individuals, but the overall striped effect remains a consistent identifying trait. The belly is generally paler, often cream or yellowish, and unmarked or lightly marked.

Head, eyes & scales

The head is moderately elongated and only slightly wider than the neck, with large eyes and round pupils reflecting its daytime activity pattern. Scales are strongly keeled along the back, producing a rough surface texture, while scales on the lower flanks may be smoother. Some individuals show a pale stripe or spot pattern extending onto the head.

Size & body shape

This is a small to medium-sized snake, with adults typically reaching around 40 to 70 centimeters. The body is slender and cylindrical, and the tail is moderately long and tapering, consistent with an active, fast-moving lifestyle in open and semi-aquatic habitats.

Range & habitat where you'll see it

The Striped Keelback is commonly found in grasslands, marshes, rice paddies, and areas near ponds and streams across parts of South and Southeast Asia. It is diurnal and often seen actively foraging in vegetation near water during the day, unlike many nocturnal snake species sharing its range.

How to tell it apart from look-alikes

The continuous longitudinal striping is the primary feature distinguishing this species from other keelbacks, which more commonly display checkered, blotched, or banded patterns rather than stripes. Its strongly keeled scales separate it from smooth-scaled colubrids that might share similar coloration. Combined with its diurnal activity and strong association with wetland and grassland habitats, the striped pattern makes this species relatively straightforward to identify in the field.