29. SALVADORA 691 



Length to aans - 235 258 340 652 695 850 

 Length of tail - 63 60 98 215 189 290 



Distribution. The western form of the Parched-nosed 

 Snake has been found in Utah, Nevada, Arizona, California, 

 Sonora, and Lower California. 



In Utah, it has been taken in Cottonwood Canyon, and 

 perhaps at Ogden (Yarrow), though Cope says that the 

 latter locality needs confirmation. 



In Nevada, specimens have been secured at Las Vegas 

 and in the valley of the Virgin River near St. Thomas and 

 Bunkerville, Clark County, and at Sutcliff e, Pyramid T-afa^ 

 Washoe County. 



In Arizona, it has been found at Mowry in the Pata- 

 gonia Mountains, Fort Buchanan, Calabasas, and Nogales, 

 Santa Cruz County; Fort Huachuca, and Carr and Ramsey 

 canyons in the Huachuca Mountain^ near Fairbank, and in 

 Rucker Canyon in the Chiricahua Mountains, Cochise 

 County; in the foothills of the Catalina Mountains, *! 

 about Tucson, Puna County; Fort WhippJe, Tavapai 

 County; thirty miles northwest of Phoenix, Maricopa 

 County; ten miles below Cibola and near Yuma, Yuma 

 County; and near White River Canyon, Mohave Village, 

 and San Pedro River. 



In Sonora, it has been collected at Guaymas and Sierra 

 Blanco, as well as on Tiburon Island, in the Gulf of Cali- 



In Lower California, it occurs in the northern part of 

 the peninsula in the San Pedro Martir Mountains and at 

 San Marias; in the central portion, near Comondn, Santa 

 Rosalia and San Ignacio; and in the Cape Region at La Pax, 

 Cape San Lucas, San Jose del Cabo, Santa Anita, Aga Cal- 

 and Sierra San Lazaro. 



In California, this afc^ K \p** ^>jWpl m Inyo 



