Paul DeBenedetti 1961 Xantusia vigilis Jan 1 U.S. 465 4.9mi. N. Cejon Pass, San Bernardino Co. I collected 3 of these lizards from under a large yucca log. There were 3 other lizards under the same log. All were quite dark and quite inactive. The area is flat, sandy-gravelly desert with some scattered grass and few sagebrush and creosote bushes. There are Joshua trees about every 80-100 feet apart here. No large rocks in the immediate vicinity. The lizards are only under logs that have been sitting for some time. Air temp cool, approx. 20° C. (not measured with a thermometer)