(Aspidura trachyprocta)
Aspidura trachyprocta,the common rough-sided snake,known as (dalawa medilla) in Sinhala,is a colubrid species endemic to Sri Lanka.Head indistinct from neck,body is cylindrical.Dorsum range from blackish brown to light reddish brown,with lateral stripes and 2–3 rows of dark dorsal spots.Venter varying from being heavily blotched with black to light yellow with a red tint and just blotched on midline.