
Photo: (c) Zakqary Roy, some rights reserved (CC BY) · CC-BY
Enhydris enhydris
Range
South-eastern China, Indonesia, Bangladesh, central and eastern India, Nepal, Pakistan, Sri Lanka and Southeast Asia
The rainbow water snake is a mildly venomous, rear-fanged colubrid snake endemic to Asia. It is found in south-eastern China, Indonesia, Bangladesh, central and eastern India, Laos, Malaysia, Myanmar, Nepal, Pakistan, Sri Lanka, Thailand and Vietnam (Wikipedia, general species account).
The only source opened is a short account that lists its range. Nothing on size, colour, habitat, diet or breeding was found, so none of those is stated. The Reptile Database summary shown lists only south-eastern China, so the Nepal record is flagged for checking.