Pedioplanis undataPedioplanis undata, known commonly as the plain sand lizard or the western sand lizard, is a species of lizard in the family Lacertidae. The species is endemic to Southern Africa.Geographic rangeP. undata is found in southern Namibia and in South Africa.DescriptionP. undata is a small and slender species, closely resembling P. namaquensis. However, the lower eyelid of P. undata has a "window" formed by 2–4 semitransparent large scales. Adults of P. undata have a snout-to-vent length of, and the tail is very long, nearly three times SVL.DietP. undata preys upon small insects.ReproductionP. undata is oviparous. Each hatchling has a total length of.