
Photo: Wildan R. Ardani (iNaturalist) · CC BY 4.0 (May be cropped or resized)
Calamaria bicolor
Range
Borneo (Kalimantan, Sabah and Sarawak); presence in Java uncertain
The bicoloured reed snake, also called the two-coloured dwarf snake, is a species of snake of the family Colubridae. It appears to be endemic to Borneo, where it is widespread in Kalimantan, Sabah and Sarawak. Its presence in Java is uncertain (Wikipedia, general species account).