Cave racer snake - Orthriophis taeniura ridleyi (Borneo)
It seems that it is also called Cave Dwelling Rat snake and Elaphe taeniura ridleyi.
If you know which is the preferred denomination for this snake, please post a comment.
This type of snake lives deep in caves and mostly feeds on bats. It is non-venomous.
Spotted in Clearwater Cave in Gunung Mulu National Park (Borneo).
The Clearwater System is believed to be the largest interconnected cave system in the world by volume and the 9th longest cave in the world at 189 Km (as of 2011). For more photos, information and cave map, view my Clearwater cave photo series.