1913 I Grinnell-Swarth : Birds and Mammals of San Jacinto 325 



monly on Tahquitz Ridge, extend with but few breaks to the 

 former point, in fact nearly to the summit of San Jacinto Peak, 

 and having reached Round Valley, there seems to be little to 

 hinder the animal from ranging over the Peak. The species 

 was not observed at any point on the desert slopes of the moun- 

 tains. 



Though most of the specimens collected (taken from, the 

 middle of May to the middle of August) are in good condition, 

 as regards pelage, there is one striking exception, an adult female 

 (no. 1876) taken at Kenworthy, May 22. On this animal the 

 hair is worn to such an extent that the color pattern has entirely 

 disappeared. It looked entirely black as it darted over the rocks. 

 and is in fact sooty over the entire upper surface of the body. 



Eutamias speciosus speciosus (Allen 

 San Bernardino Chipmunk 



Thirty-nine specimens were procured, as follows: San Jacinto 

 Peak at 10.000 feet, one (no. 1757); Round Valley. 9000 feet, 

 twenty (nos. 17(18-1777. 1798 1807) ; Tahquitz Valley. 8000 feet. 

 eighteen (nos. 2129-2137, 2158 2166). 



This chipmunk- adhered closely to the Boreal /one on the main 

 San Jacinto Mountains, not being seen below an altitude of 8000 

 feet. It was not found on Santa R,osa at all. The range of this 

 mammal closely coincided with that of the chinquapin (Castan- 

 <>/>sis). While not seen on the actual summit of the peak. 

 Eutamias speciosus was noted commonly on chinquapin slopes 

 up to 10.000 feet, and in all probability occurred all over the 

 uppermost heights. 



No young were seen up to duly 20. but on the 23rd juvenals 

 were taken, and soon after were plentiful. Nothing can here be 

 added to the account of habits already given (Grinnell, 1908, 

 p. 139). 



The cursory examination given the series of specimens avail- 

 able shows no differences which, perhaps, might be expected to 

 appear between the two colonies inhabiting the San Jacinto and 

 San Bernardino mountains respectively, with the San Gorgonio 

 Pass intervening. 



