Proctoporus xestusProctoporus xestus, or the river teiid, is a species of lizard in the family Gymnophthalmidae. The species is endemic to South America.Geographic rangeP. xestus occurs from central Peru to Bolivia and northern Argentina.HabitatThe preferred natural habitats of P. xestus are Yungas forest and wet montane grassland, at elevations of above sea level.DescriptionP. xestus may attain a snout-to-vent length of. The tail length is almost twice the SVL.ReproductionP. xestus is oviparous.TaxonomyP. xestus is the type species of the genus Opipeuter Uzzell, 1969, now synonymized with Proctoporus.