Calamaria yunnanensis
Habitat
Fossorial, burrowing in soil and leaf litter
Range
Yunnan (China) and Laos
Size
Typically about 30–40 cm
The Yunnan reed snake (Calamaria yunnanensis) is a small, slender snake found in Yunnan in China and in Laos. It is typically around 30–40 cm long and is believed to be fossorial, burrowing and moving through leaf litter and soil. (The Reptile Database; Wikipedia, general species account)
It has a cylindrical body and a small, pointed head, brown or greyish-brown above with a lighter, sometimes yellowish belly. It is poorly studied; its diet likely consists of small invertebrates such as insects and earthworms. (Wikipedia, general species account)