8. CALLISAURUS 159 



Arizona, northern Lower California north of the range of 

 C. d. carmenensis, and probably in northern Sonora. 



In California, it has been collected in Inyo (Saline 

 Valley at 2500 feet, White Mountains, Owens Valley near 

 Big Pine, Independence, Lone Pine, Keeler, Olancha, 

 Owens Lake, Shepherd Canyon in the Argus Mountains, 

 Panamint Valley, Lone Willow Springs, Ballarat, Pana- 

 mint Mountains at Emigrant Spring, Emigrant Canyon, 

 Shoshone, Mesquite Valley, Death Valley at Bennett Well, 

 Saratoga Springs and Furnace Creek, Funeral Mountains, 

 Amargosa River), Kern (Kelso Creek near Weldon, Mohave, 

 Cameron, Warren), Los Angeles (western Antelope Val- 

 ley), San Bernardino (Borax Flat, Garlick Springs, Leach 

 Point Valley, Pilot Knob, Lanes Mill, Barstow, Daggett, 

 Ludlow, Providence Mountains, Needles, Turtle Moun- 

 tains, Blythe Junction, Cajon Pass, Lyons, Warren's Wells, 

 Cajon Wash), Riverside (Palm Springs, Vallevista at 1800 

 feet in San Jacinto Valley, Banning, Cabazon at 1700 feet, 

 Dos PalmOS Spring, San Jacinto Mountains west from Coa- 

 chello, Whitewater, Piny on Flat at 4000 feet, Deep Canyon, 

 Palm Canyon, Coachella, San Berdnardino Mountains east 

 from Coachella, Mecca, Cottonwood Springs, Carrizo Creek 

 in the Santa Rosa mountains, Blythe, Colorado River), Im- 

 perial (Coyote Wells, Silsbee, New River near Salton Lake, 

 Salt Creek, Pilot Knob, Colorado River, Fort Yuma), and 

 San Diego (Oak Grove, Fish Springs, Vallecito, Mountain 

 Springs), counties. 



In Nevada, it inhabits the desert regions of Esmeralda 

 (Gold Mountain at 6,000 feet, Sarcobatus Flat, at 4,600 

 feet, Mina), Nye (Amargosa River, Ash Meadows, Rhy- 

 olite, Pahrump Valley) and Lincoln (Callville at the Great 

 Bend of the Colorado River, Vegas Valley, Virgin Valley, 

 valley of the Lower Muddy, Caliente, Meadow Creek 

 Valley, Pahranagat Valley, Desert Valley at 5,300 feet), 



