How to Identify the Common Purple-glossed Snake (Identification Guide)
A small, glossy, burrowing African snake identified by its iridescent purplish-black sheen, smooth scales, and cylindrical body.
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Key identifying features
The Common Purple-glossed Snake (Amblyodipsas polylepis) is a small to medium-sized, secretive, burrowing snake found in southern and eastern Africa. It is identified by its highly glossy scales that reflect an iridescent purplish or bluish-black sheen in good light, along with a cylindrical body and small head typical of fossorial, ground-dwelling snakes.
Coloration & pattern
This species is generally uniform dark purplish-brown to blackish along the back, with the glossy sheen being the most distinctive visual feature, especially noticeable when the snake is in direct light. The belly is typically paler, ranging from cream to pinkish or light gray, often sharply demarcated from the darker dorsal coloration. There is usually no obvious pattern of blotches or bands.
Head, eyes & scales
The head is small and barely distinct from the neck, with a rounded snout adapted for burrowing. Eyes are small and reduced, reflecting this species' largely subterranean lifestyle. Scales are smooth and notably glossy, which enhances the purplish iridescence and helps reduce friction as the snake moves through loose soil and leaf litter.
Size & body shape
The Common Purple-glossed Snake is a moderately sized species, typically reaching 40 to 70 centimeters, occasionally longer. The body is cylindrical and relatively stout for its length, with a short tail, an overall build well suited to pushing through soil, sand, and decaying vegetation.
Range & habitat where you'll see it
This species is found across savanna, woodland, and coastal habitats in southern and eastern Africa. It is highly secretive and burrowing, spending most of its time underground or beneath surface debris such as logs, rocks, and leaf litter, and is rarely seen above ground except after rain or at night.
How to tell it apart from look-alikes
Its distinctive glossy purplish-black sheen sets it apart from other small, dark, burrowing snakes, which typically lack this iridescent quality. The small, reduced eyes and smooth, cylindrical body distinguish it from more slender, large-eyed arboreal or terrestrial species. Careful observation under good lighting, where the purple sheen becomes visible, is the most reliable way to confirm identification.
Frequently asked questions
What makes the Common Purple-glossed Snake distinctive?
Its highly glossy scales reflect an iridescent purplish or bluish-black sheen, which is its most recognizable feature.
Is this snake dangerous?
It has mild venom used mainly to subdue small prey and is not considered a significant threat, though it is best identified visually rather than handled.
Where does it live?
It inhabits savanna, woodland, and coastal areas of southern and eastern Africa, spending most of its time underground or under surface debris.
How big does it get?
It typically reaches 40 to 70 centimeters in length.
Why is it rarely seen?
It is a secretive, burrowing species that stays underground or hidden beneath logs and leaf litter, only surfacing occasionally, often after rain or at night.