River teiid
Proctoporus xestus, or the river teiid, is a species of lizard in the family Gymnophthalmidae. The species is endemic to South America.
P. xestus may attain a snout-to-vent length (SVL) of 5.8 cm (2.3 in). The tail length is almost twice the SVL.
P. xestus occurs from central Peru to Bolivia (Chuquisaca, Cochabamba, and Santa Cruz departments) and northern Argentina (Jujuy, and Salta provinces).
The preferred natural habitats of P. xestus are Yungas forest and wet montane grassland, at elevations of 1,000–3,600 m (3,300–11,800 ft) above sea level.
P. xestus is oviparous.