Order vi. Rodentia, 



Fam. I. Sciuridie. 



Subfam. I. Sciurinse. 



34. Sciurus. 



F. Otosciurus. 



79. a. phceurus (Sciurus), Allen, Bull. Am. Mus. Nat. Hist., 1904, 



p. 205. 

 LA CIENAGA SQUIRREL. 



Type locality. La Cienaga, State of Durango, Mexico. 



Genl. Char. Similar to S. durangi, but with a gray instead of a 

 reddish back. 



Color. Back gray, slightly suffused with reddish; sides of nose 

 gray, sometimes tinged with buff; orbital ring soiled white; black 

 lateral line; tail above and below grizzled gray, broadly fringed with 

 white; ear at base externally pale reddish brown. 



Measurements. Total length, 493; tail vertebrae, 222; hind 

 foot, 69. 



79bis. barberi (Sciurus), Allen, Bull. Am. Mus. Nat. Hist., 1904, p. 207. 

 BARBER'S SQUIRREL. 



Type locality. Colonia Garcia, State of Chihuahua, Mexico. 



Genl. Char. Similar to 5. a. ph&urus, but with tail white 

 beneath. 



Color. Fall Pelage. Sides of nose and orbital ring soiled white; 

 general color of upper parts gray; broad black lateral line; ventral 

 surface white; upper surface of hands and feet white; tail above 

 black and white mixed, and broadly fringed with white; beneath 

 white except at base ; ears slightly rufous at base externally ; tufts black. 



Measurements. Total length, 500; tail vertebras, 240; hind 

 foot, 70. 



35. Taniias. 

 A. Eutamias. 



97bis. canescens (Tamias), Allen, Bull. Am. Mus. Nat. Hist., 1904, 



p. 208. 

 GUANACEVI CHIPMUNK. 



Type locality. Guanacevi, State of Durango, Mexico. Altitude, 

 8,000 feet. 



Genl. Char. Like T. dorsalis, but with more strongly defined 

 dorsal stripes and sides a deeper fulvous. 



741 



