Eryx conicus
—
Rough-sided Sand Boa
Also known as:
Rough-tailed Sand Boa, Russell’s Boa, Common Sand Boa, Rough-tailed Boa
Some authorities place this in the genus Gongylophis.

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These snakes spend much of their type under sand, leaf litter, rocks, etc. When disturbed, they typically coil up and hide their heads.
Online references:
- Eryx conicus account on The Reptile Database
- Eryx conicus account on iNaturalist
Printed references:
- de Silva, A., Ukuwela, K. 2017. A Naturalist's Guide to the Reptiles of Sri Lanka