Lesser Sunda Dark-throated Skink
I had originally tentatively identified these lizards as Sphenomorphus florensis
. That species was lumped in with Sphenomorphus melanopogon
The Ecology Asia website coined the common name "Lesser Sunda Dark-throated Skink" based on the scientific name, while freely admitting that only adults, and then only some adults, actually have dark throats.
Loho Liang, Komodo, Nusa Tenggara, Indonesia—October 23, 1999
I found these two skinks perched on trees directly opposite each other on the trail. Seeing so many skinks clambering around on trees took me some getting used to, as most U.S. skinks are found on the ground, generally under leaf litter or larger objects.
Satonda, Nusa Tenggara, Indonesia—October 25, 1999
This smaller individual was from little Satonda island. Satonda features a lake composed of brackish water left behind when a huge volcano on nearby Sumbawa caused tidal waves to drench Satonda.
My references are weak at distinguishing the various species of Sphenomorphus from location and photos alone, so it's quite possible that I'm misidentifying one or more of these skinks. If you can confirm or deny these identifications, please send me mail.