Pomona College, Claremont, California 65 



Via Stansburiana clegans (Yarrow). 



Several specimens were taken during the first week in April, and they seem to be 

 farily common throughout a large part of the Mojave and Colorado deserts, in Cali- 

 fornia at least. 



Sceloporus magisler (Hallowell). 



One specimen taken 35 miles east of Mecca, California, April 2, 1920. Other 

 specimens taken during July and August, east of Holtville, California. These lizards 

 seem, to prefer the brushy country or the neighborhood of trees, into which they 

 climb when frightened. The specimen taken east of Mecca was found on the ground 

 beneath a cactus. 



Phyrnosoma plalyrhinos (Girard). 



Representatives from five miles west of Amboy and Needles, California. Without 

 an exception they were found on the dry gravelly washes or in the sand not far from 



washes. 



Xantusia vigilis (Baird). 



Three specimens from east of Victorville, and one from the Providence Moun- 

 tains, near Bonanza King Mine, March 30, 1920. These specimens were all found 

 beneath the bark of prostrate yuccas. 



Cnemidophorus tigris tigris (Baird and Girard). 



These lizards appear to be one of the most common found on the Colorado and 

 Mojave deserts in California. Their rsnge is extremely varied, specimens being 

 taken from, and between, Victorville, Needles, Blythe, the Mexican border in Imperial 

 Valley, and Palm Canyon. These localities are not given as the limits of the range 

 but places within the range from which we have specimens. Specimens were taken 

 in the Salton Sink 265 feet below sea level, and from the Providence Mountains at an 

 approximate altitude of 2,800 feet above sea level. 



Sonora occipitalis (Hallowell). 



One specimen taken at the grass-fields, between Blythe and Mecca, California. 

 When taken it was traveling out in the open and in the heat of the noon sun, April 

 3, 1920. It was found on a gravel wash and when approached it struck in all 

 directions, though apparently it did not open its mouth upon striking the hand. It 

 appeared to be blinded by the sun and unable to tell from which direction it was 

 menaced. 



Bascanion jlagelliim frenatum. 



Two specimens, both taken near Mecca, Imperial Valley, April 4, 1920. Both 

 these specimens were somewhat lighter than specimens taken from the region around 

 Claremont, California. 



One of these snakes was obtained under rather unusual circumstances, which 

 incidentally involved the collecting of a Cnemidophorus tigris tigris. The lizard was 

 shot but not killed by the collector, and while watching for an opportunity to kill 

 the lizard without the use of a second shot, the snake was seen gliding in the same 

 direction as the lizard, and suddenly attacked and seized it, when both were added 

 to the collection. 



