112 3. IGUANID& 



"Some of the individuals taken were probably paired ; 

 at any rate, their being secured close together might so in- 

 dicate. 



"The Bailey lizard is a nimble animal, jumping short 

 distances from rock to rock. Frequently individuals allowed 

 of very close approach, remaining perfectly quiet, but at 

 other times they retreated with great rapidity. 



"The example taken in Big Creek Canyon was just shed- 

 ding its epidermis, fragments of the old skin being still 

 adherent." 



Ruthven and Gaige, in eastern Nevada, found it not 

 common. "On one or two occasions we observed individuals 

 on the ground, but they were mostly found on the rocks. 

 Apparently they do not climb with the facility of the Scelo- 

 'porus biseriatus and Uta stansbunana nevadensis, but are 

 usually found upon the tops of rocks or clinging to sloping 

 rock faces and not on cliffs. When alarmed they rush down 

 into the crevices. The stomach of one specimen contains 

 only insects and spiders 5 another contains insects and some 

 vegetable matter, the latter probably taken accidentally." 



Mr. Camp, in southeastern California, found that "These 

 grotesque lizards inhabit the rocky slopes of the Turtle 

 Mountains in numbers and live also among the rocks about 

 the bases of the hills, but they were never seen on the open 

 desert. This agrees with observations by Taylor (1912, 

 p. 326) in northern Nevada. Like the chuckwallas, the 

 Bailey lizards mount rocky eminences and lie for hours in 

 the sun during the hottest part of the day. When approached 

 they slip down into crevices or run with alacrity over the 

 roughest ground, clearing obstacles up to two feet in height 

 with great leaps. The males distend their dark throats when 

 'showing off.' They seem hard to kill, and when thought 

 dead will sometimes 'come to life' in the collecting sack, 

 blinking their yellow eyes and looking ferocious. When 



