I think various details of this skink identify it as Eutropis rudis rather than the extremely common and widespread Eutropis multifasciata, but I didn't get any absolutely conclusive photos.

My Travelogues and Trip Lists page includes a complete list of the herps I saw in the wild on this trip to Malaysia, as well as a travelogue of the trip.

The crimson throats of adult males make identification easy. Younger males and females have a more generic skinky look that can be difficult to distinguish from Eutropis multifasciata.

Another easily recognizable adult male, though this one was considerably more wary.