Head of a Yuman desert fringe-toed lizard, a sand dunes specialist equipped with countersunk lower jaw, overlapping eye scales, nasal valves, protective skin flaps over the ear openings, and enlarged toe scales for digging in loose sand. Uma notata rufopunctata. Synonyms include Uma rufopunctata and Uma notata cowlesi. Native to sand dune habitats of extreme southwestern Arizona and adjacent Sonora, Mexico. Arizona-Sonora Desert Museum, Tucson, Arizona, USA. Photographed under controlled conditions