74 CALIFORNIA MAMMALS. 



teen this species in any other range in southern California, though 

 both the San Jacinto and San Gabriel Mountain ranges are well 

 adapted to their wants. Bernardinus differs very little from true 

 chrysodeirus. 



Citellus chrysodeirus trinitatus Merriam. (Of the 

 Trinity Mountains.) 



TRINITY GROUND-SQUIRREL. 



In fall pelage similar to chrysodeirus; larger; ground color 

 darker; inside of tail dark chestnut; skull and teeth larger; nasals 

 longer. 



Length about 280 mm. (11 inches); tail vertebrae 100 

 (4) ; hind foot 43 (1.70). 



Type locality, Trinity Mountains, California. 



"Common in the Siskiyou, Salmon and Trinity Mountains 

 of northwestern California and southwestern Oregon." I have 

 not seen this subspecies. It is supposed to lack the golden mantle 

 of the head and shoulders. 



Subgenus Ammospermophilus. (Sand — spemiophile. ) 

 Ears small ; tail about half as long as head and body : pelage 

 ■striped; nasals small and short; rostral part of face small: 

 crown well arched; skull narrow and light; size small. 



Citellus leucurus Merriam. (White — tail.) 



ANTELOPE GROUND-SQUIRREL. 



Above smoke gray or drab grizzled with white; a narrow 

 white stripe from shoulder to hip, below which is a broad stripe 

 on the side similar in color to the back, but often tinged with 

 cinnamon ; outer surface of legs vinaceous cinnamon or vinaceous 

 buff; eyelids, inner surface of legs and lower parts white; tail 

 short, broad, flat, white underneath, mixed black and white 



