Alligator Lizards 35 
body cavities. Some individuals have colonies of orange-colored 
mites on the soft skin of the lateral fold; ticks are often found 
in or around the ear opening. There is no evidence that these 
parasites have any serious effect on the lizards. 
Sierra Alligator Lizard 
Gerrhonotus coeruleus palmeri 
_ On June 23 and 24, 1932, I collected a series of this lizard 
in General Grant National Park, California. The weather was 
warm. Individuals were seen foraging in the middle of the 
_morning and until late in the afternoon, but most of those found 
Were under cover, usually beneath strips of yellow-pine bark 
which were lying on the ground or were loosely attached to 
dead trees and fallen logs.’ Other specimens were found on the 
do other forms of the species. The relatively larger feet of 
palmeri are probably correlated with its open habitat. 
4, Lit escaping, the lizards usually took advantage of the down- 
hill slope. When an attempt was made to noose one seen crawl- 
ing through a dense tangle of Ceanothus velutinus, the lizard, 
attracted by the shiny copper wire, climbed rapidly toward it, 
struck, and then dropped to the ground where it escaped by 
burrowing in the litter of dry leaves and sticks. 
_, Stomach contents of thirteen of the specimens taken were 
identified as follows: 33 small beetles, 1 grub; 11 bugs; 4 moths; 
1 geometrid larva; 1 ant lion; 7 large termites; 1 large bumble- 
Stomach contents of an adult male from Merced Lake, 
7500 feet, Yosemite Park, included a large moth, three termites, 
a small spider, and two small grubs. 
Of the specimens examined the five which were molting 
when captured were taken during June, July, and August. 
Van Denburgh (1922: 447) wrote that in Yosemite Valley 
palmeri mates about the middle of June. Of the three ce 
: J 
24, 1932, only one (Mus. Vert. Zool., no. 15032) contained 
developing ova. These were four in number and averaged 
8.5 x 7.5 mm. in size. Seemingly this would indicate a slow 
Tate of reproduction in palmeri, Probably at the high altitudes: 
Where it is found, natural enemies are fewer and hence the 
