13. PHRYNOSOMA 425 



records a specimen as collected at Sand Point, Bonner 

 County. 



In Utah, the type was collected near the Great Salt 

 Lake, and the species has since been secured in Utah (Fair- 

 field), Beaver (Beaver, Jackson Hill at 6500 feet in the 

 Tushar Mountains, Newhouse), Millard (Dome Canyon, 

 Deseret City, Meadows), Iron (Rush Lake), and Washing- 

 ton (St. George, Toquerville, Rockville, Mountain Mead- 

 ows), counties. 



In Arizona, it is known to occur in Mohave (Valley of 

 the Virgin River, Fort Mohave), Yavapai (Fort Whipple), 

 Maricopa (Tempe), and Yuma (Parker, 25 miles below 

 Ehrenberg, Yuma, Papago Wells in the southeastern part 

 of the county), counties. 



In Lower Calfornia, it has been collected only at San 

 Felipe on the Gulf of California, and at Seven Wells on the 

 Salton River. 



Habits. Like other species of this genus, Phrynosoma 

 flatyrhinos feeds upon small insects. These it catches upon 

 the ground, and rarely if ever attempts to climb. It can- 

 not run swiftly, but sometimes tries to escape by burying 

 itself in the loose desert soil. It often puffs itself up and 

 hisses when handled. Taylor noted a pair mating, in north- 

 ern Nevada, on June 10, and on June 14 found a female 

 containing ten eggs. Near Pyramid Lake, Richardson, in 

 the last week in May and on June 2, found three females 

 which contained thirteen, thirteen and nine eggs, respec- 

 tively. He notes: "Phrynosoma flaty rhinos was invari- 

 ably found on the desert among low bushes, under which 

 it ran when pursued. It seemed to rely upon this method 

 of escape rather than that of hiding in the burrows of small 

 mammals, a habit of many desert lizards. When hard 

 pressed it crawled close to the stalk of a bush, around which 



