Page:Natural History of the Ground Squirrels of California.djvu/52

From Wikisource
Jump to navigation Jump to search
This page has been proofread, but needs to be validated.
638
THE MONTHLY BULLETIN.

Mohave Desert from the mountains east of Owens Lake south to the Santa Rosa Mountains west of Salton Sea.

In altitude this squirrel ranges from 450 feet, as at Palm Springs at the eastern base of San Jacinto Peak, to 10,500 feet, as within a quarter of a mile of the summit of the same mountain (H. S. Swarth, MS). It is to be found from the southernmost plains of the San

Fig. 17. Map showing California distribution of the California, Fisher, Catalina Island and Douglas ground squirrels, and the Rock Squirrel, all being of the "digger" category. The spots represent localities from which actual specimens have been examined.

Joaquin Valley to 10,000 feet altitude in the Mount Whitney region. This rodent thus shows little regard for zonal limitations, occurring all the way from the Lower Sonoran zone to the Canadian zone, though its numbers above the Upper Sonoran are small. It is equally at home

46