Ptyas doriae
Habitat
Forest, shrubland and grassland, 600–1,780m; partly arboreal and active by day
Range
South-western China (Yunnan), north-eastern India (Assam) and northern Myanmar
Size
Up to 91cm; tail 21cm
Doria's green snake is a colubrid endemic to Asia, found in south-western China (Yunnan), north-eastern India (Assam) and northern Myanmar (Kachin Hills). Its preferred habitats are forest, shrubland and grassland at altitudes of 600–1,780 m. It may attain a total length of 91 cm, including a tail of 21 cm (Wikipedia, general species account).
It is greenish above and whitish below, with a whitish upper lip, and the smooth back scales lack apical pits and are in 15 rows. It is active by day, partly tree-dwelling, and lays eggs. The Reptile Database lists Manipur and Assam.