
Photo: Nuwan Chathuranga · CC BY-SA 4.0 (May be cropped or resized)
Aspidura ravanai
Range
Endemic to Sri Lanka; known only from the western slopes of the Sri Pada sanctuary
Ravana's rough-sided snake is a small colubrid endemic to Sri Lanka, known only from the western slopes of the Sri Pada sanctuary in the central highlands. It is named for the mythological king Ravana. It is similar to its sister lineage, the common rough-sided snake, with a dark black back and a yellowish line along the belly (Wikipedia, general species account).
No further species-level description was available in the source consulted, and no status is given for it in the Sri Lanka National Red List 2012 list checked.