82 CALIFORNIA MAMMALS. 



Eutamias speciosus frater Allen. (Brother.) 



SIERRA NEVADA CHIPMUNK. 



Rather larger than speciosus; facial stripes not so promi- 

 nent ; outer light stripes of back narrower, white tinged with bufif ; 

 dark stripes rather broad, seal brown or dark chestnut ; belly gray- 

 ish white; sides very red in summer pelage, between russet and 

 cinnamon rufous, winter pelage grayer. 



Type locality, Donner, California. 



Sierra Nevada Chipmunks range through the Sierra Nevada, 

 excepting perhaps the southwestern part, from 5,000 to 9,000 

 feet altitude, coming lowest in the northern part of their range; 

 where they occur in the yellow pines. They climb trees to some 

 extent. The)- do not seem, to be very shy. 



Eutamias quadrimaculatus Gray. (Four — spotted.) 



LONG-EARED CHIPMUNK. 



Size large; facial stripes very distinct; ears larger than 

 any other Californian species of the genus ; front edge of convex 

 side of the ear rusty brown shading into blackish sharply bordered 

 behind with white, the contrast less sharp in summer; dark 

 stripes of back seal brown edged or tinged with rusty ; outer 

 light pair of stripes white and distinct in summer, grayer in win- 

 ter pelage; sides fulvous gray in spring and fall, rusty brown in 

 summer; lower parts white; tail long, of medium breadth, the 

 stripe underneath rich light chestnut; tips of hairs of upper side 

 of tail whitish. 



Length about 235 mm. (9.25 inches) ; tail vertebrae 108 

 (4.25); hind foot 35.5 (1.40); ear from crown 20 (.78). 

 Weight three to three and a half ounces. 



Type, locality, Michigan Bluff, Placer County, California. 



Long'-eared Chipmunks are common in the yellow pine for- 

 ests of the western slope of the Sierra Nevada from the Yosemite 

 Valley north to Lassen County. I obtained a number of Chip- 

 munks on the headwaters oi the Carson River in Alpine County, 

 that I suppose to be Long-eared. 



