EL Karlstum 1954 Chorina bottae June 2 Crocker Station, 3 1/2 mi. E Hardin Flats, 4452 ft., Tuolumne Co., Calif. One adult ♀ 3:50 8.M. (D.S.) on south-facing wooded slope under piece of partially rotted halved log 5 1/2' x 6"x4". Douglas fir, yellow pine, oaks, manzanita and cultivated apple trees in area. This is an old stage coach station with numerous burned frame buildings. Gassy meadow 40 yards to SE with slight rivulet flow through it. Ground beneath log slightly damp. Snake coiled in loose ball, active when picked up. Air temp. low 70's. Log was in open sun at time, but the area 30% slobed dry scattered trees. June 3 Yosemite Museum, Yoz. Valley. This ♀♀ "laid" (collected) 10 "eggs" sometime between 4 P.M. yesterday and 7 A.M. (D.S.) today. I placed them on damp paper towel in 5'x5'x3" dish with the snake. No sign of brooding noted. ♀♀ total length 398 mm., body 346 mm. Eggs with heavy light cream colored coverings. I was surprised at the heavy covering on an embryo from an ovoviviparous form. A few of the eggs adhered to each other by membranous outer portions. Eggs measured: L = 12.3 - 12.7 - 13.8 - 12.8 - 12.7 - 12.5 - 12.7 - 12.3 - 13.4 - 13.4 W = 7.7 - 8.4 - 8.2 - 8.7 - 7.9 - 8.1 - 8.3 - 7.7 - 8.2 - 9.0 N=10 X L = 12.86 mm. X W = 8.22 mm.