This species is basically the high-altitude replacement for Trimeresurus sabahi fucatus, though there seems to be disagreement about whether or how much the ranges overlap, and even about how exactly to tell the two species apart. My understanding is that the elevation at which this one was found, combined with its green eyes, identify it as T. nebularis.

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.