Davis 21 1946 E. Side of U.S. 399, 4.7 mi. S. of San Luis Obispo Co. Line, Santa Barbara Co., Calif. May 11, 1946 We found them quite common beneath dead yucca plants, and between us collected a series of 15 in little less than an hour. These specimens are all in catalog of Robert C. Stebbins. This station extends the range of X. vigilis 30+ mi. to the west; the westernmost point to this date be- ing Fraser Park, Kern Co., Calif. We turned off 399, .5 mi. E of its junction with Hwy 166, driving N.W. on a gra- ded road 4+ mi. to Simmler. West past Soda Lake. Country quite bar- ren; only lizards noted were tor- toises and Rattlesnakes. Then drove east on Hwy 178 to Santa Maria, San Luis Obispo Co., Calif.; stopping once in a Blue Oak-Digger Pine canyon, where we hunted Eusodia & found none. Then drove about & 8 mi. N. on Hwy 101 toward Atascas- dero, San Luis Obispo Co., Calif., at which point we turned off the main road & camped for the night.