Alligator Lizards 27 
Table of breeding ee — during summer of 1932 showing size and 
mber of developing ova 
No.—(Mus. of nso size of Head & body Igh, 
Vert. Zool.) Locality Date pane eggs in mm. of female in mm, 
15040 Burney, Shasta Co., Calif. June 27 10 11-8 120 
15048 Burney, Shasta Co., Calif. June 27 7 12 x 7.5 104 
15057. Grass Valley Creek, Trinity Co., Calif. June 28 G6 125 =x 75 115 
15061 Grass Valley Creek, Trinity Co., Calif. June 28 9 6x6 113 
15065 Grass Valley Creek, Trinity Co., Calif. June 28 6 14x 9 104 
15069 Grass Valley Creek, Trinity Co., Calif. June 28 7 13 x 9 99 
15076 10 mi. E. Ashland, Jackson Co., Ore. July 4 3 15x9 93.5 
15077. +10 mi. E, Ashland, Jackson Co., Ore. July 4 ¥ is x 9 107 
15078 10 mi. E, Ashland, Jackson Co., Ore. July 4 8 13 x 9 108 
15079 10 mi. E, Ashland, Jackson Co., Ore. July 4 6 12x 9 103 
15115 Rainbow Creek, 5100 ft., Klamath Co., Ore. July 11 = 15x 8 80 
15122 Rainbow Creek, 5100 ft., Klamath Co., Ore. Aug. ? 5 11.38 99 
15089 Wagner Gap, 4800 ft., Jackson Co., Ore. Aug. 10 5 16 x 12 105 
15090 Wagner Gap, 4800 ft., Jackson Co., Ore. Aug. 10 Zz 16 x 12 110 
15091 Wagner Gap, 4800 ft., Jackson Co., Ore. Aug. 10 6 16 x 12 100 
Table showing size and number of young in broods of G. c. shastensis 
in captivity 
Date Av. length of 
Locality of capture No. of of young, snout to Head & body Igh. 
young birth ip of tail i m of female in mm, 
poOtenar sca Mae pn en cate 
Grass daar Creek, 2000 Mi Trinity 105 
unty Californi 7 Sept. 7, 1932 73 
Burney, 3000 ft., Shasta County, 7 Sept. 12, 1932 85 110 
California 
10 miles east of agar sek raat 4000 eee 105 
ft., Jackson Co. 6 Sept. 14, 1931 85 
Observations on the birth of young were made on September 
7, 1932, when, at 8:30 a. m., three newly born young were 
found in the box with a female from Grass Valley Creek, 
Trinity County. During the remainder of the morning the 
female was kept under observation. She rested motionless until 
9:50 a. m. when she elevated her hind legs so that the feet 
were clear of the ground. At 10:00 a. m. the legs were farther 
elevated so that the thighs were pointing upward at 30° from 
the horizontal. The knees were flexed at right angles and the 
soles of the feet were turned upward. From time to time there 
were slight twitching movements of the lizard’s sides. At 
