Eryx conicus is a species of non-venomous snake in the subfamily Erycinae of the family Boidae.

[5] The rostral scale is twice as broad as long, slightly prominent, without an angular horizontal edge.

The top of the head is covered with small obtusely keeled scales, except for the nasals and internasals which are enlarged.

[7] E. conicus is found in India south of about 30°N latitude, Nepal, Bangladesh and in the northern arid region of Sri Lanka.

[2] The preferred habitat of E. conicus is sandy tracts of central and southern India, the Punjab, Kachchh, and Sind.

[citation needed] The rough-scaled sand boa's color pattern frequently resembles that of the highly venomous Russell's viper, which some herpetologists believe is a case of Batesian mimicry.