Nine snake species are found in this arid environment, the plains hog-nosed snake, western coachwhip, bullsnake, longnose snake, plains blackhead snake, blackneck garter snake, plains garter snake, lined snake, and prairie rattlesnake. The broad-headed skink, prairie racerunner, red-lipped plateau lizard, northern earless lizard, eastern collared lizard, and Texas horned lizard are also indigenous to the area. Two types of turtle, the ornate box turtle and the yellow mud turtle have been found in the Black Mesa preserve. Only one frog is found in this desert habitat, the American bullfrog, but there are six other species of amphibians; the Great Plains narrowmouth toad, New Mexico spadefoot, plains spadefoot, Woodhouse's toad, red-spotted toad, and the western green toad, all toads.