Yellowbelly Worm-eating Snake

The yellowbelly worm-eating snake is a small colubrid found in South Asia and Tibet. It is blackish above and, as the name says, yellowish below. The smooth dorsal scales are in 13 rows, with males having keeled scales in the anal region. Adults may reach 35cm in total length, with a tail of 5cm (Wikipedia, general species account).

It is found in Nepal, Bangladesh, north-east India and Tibet, and possibly in Bhutan, though the Reptile Database lists Bhutan. The sources opened give nothing on habitat, diet or breeding, so none is stated.