The Santa Cruz Island sator (Sceloporus angustus) is a species of phrynosomatid lizardfound on Santa Cruz Island, in the Gulf of California, Baja California, Mexico. S. angustus seems to be found throughout both islands of Santa Cruz, exploiting a great variety of temperate habitats, such as rocky areas, caves along beaches, areas of beach cobblestones, and sandy substrates, with animals also seen on the branches of small bushes and the limbs of cardones (cacti).