132 FIELD MUSEUM or NATURAL HISTORY ZOOLOGY, VOL. XL 



Map illustrating approximate distribution of Chipmunks (belonging to the genus Tamias) in 

 eastern United States. 



In the_ dotted areas between the ranges given for the different races either or both may occur, 

 together with intermediate forms. 



Tamias striatus (LiNN.). Type locality Southeastern United States. Descrip- 

 tion as previously given. 



Tamias s. griseus MEARNS. Type locality Hennepin Co., Minnesota. Descrip- 

 tion as previously given. 



Tamias s. lysteri (RICHARDSON). (Fauna Bor. Amer., I, 1829, p. 181.) Type 

 locality Penetanguishene, Georgian Bay, Ontario, Canada. Paler and 

 somewhat longer than striatus; rump and thighs yellowish red. 



Tamias s. venustus BANGS. (Proc. Biol. Soc. Wash., X, 1896, p. 137.) Type lo- 

 cality Stilwell, Boston Mountains, Indian Territory. Size about the same 

 as griseus, but colors brighter and back stripes much shortened. 



