SCIURIDiE 73 



ears and tail; sides and lower parts pale grayish ochraceous, 

 the hairs of the belly dusky at base, this shade showing through ; 

 tail dusky above, edged with ochraceous, cinnamon beneath. 

 IV inter pelage; head and neck gray, more or less tinged with 

 ochraceous. Young; similar to summer pelage; hairs long and 

 coarse. 



Length about 260 mm. (10.25 inches); tail vertebrae 93 

 (3.65) ; hind foot 40 (1.60) ; ear from crown 15 (.60). 



Type locality. Fort Klamath, Oregon. 



Gilded Ground-Squirrels are common in the Sierra Nevada 

 and other mountains northward, in the pine timber, but are not 

 often seen below 4,000 feet altitude. On the eastern slope they 

 sometimes occur out of the pine timber. They prefer open for- 

 ests with occasional rockpiles and old logs for places of refuge, 

 under which they burrow. They feed on many kinds of seeds, 

 on succulent plants, on mushrooms, and on the bulbs of such 

 plants as have bulbs near the surface. I caught a number in 

 traps baited with meat, and they probably eat various kinds of 

 insects. 



Five or six young are born between the middle of May and 

 the first of July. As with others of this genus the mammae are 

 ten in number. They have the habit of standing erect. They 

 are said to hibernate, which is no doubt true. I found them out 

 in the high Sierras up to the middle of September, but they 

 then appeared nearly ready to go into winter quarters. 



Citellus chrysodeirus bernardinus Ne;lson. (Of the 

 San Bernardino Mountains.) 



SAN BERNARDINO GROUND-SQUIRREL. 



Very similar to chrysodeirus; "tail and hind foot shorter; 

 duller mantle over head and shoulders." 



Type locality, San Bernardino Peak, California. 



Rather common about Bear Valley, San Bernardino Moun- 

 tains and occasional in other parts of that range. I have not 



