244 FIELD MUSEUM or NATURAL HISTORY ZOOLOGY, VOL. XI. 



Map illustrating approximate range of the Pocket Gopher (Geomys bursarius), together with the 

 type localities of other species and subspecies of the genus which occur in the United States. 



Geomys bursarius (SHAW). Type locality Upper Mississippi Valley. Description 

 as previously given. 



Geomys lutescens (MERRIAM). (N. Amer. Fauna, No. 4, 1890, p. 51.) Type local- 

 ity Sandhills, Birdwood Creek, Lincoln Co., western Nebraska. Paler than 

 bursarius and skull shorter. 



Geomys breviceps BAIRD. (Proc. Acad. Nat. Sci. Phila., VII, 1855, p. 335). Type 

 locality Prairie Mer Rouge, Morehouse Parish, 'Louisiana. Smaller than 

 bursarius, and much darker above and below. 



Geomys b. sagittalis MERRIAM. (N. Amer. Fauna, No. 8, 1895, p. 134.) Type 

 locality Clear Creek, Galveston Bay, Texas. Similar to brevipes, but smaller 

 and more highly colored. 



Geomys b. attwateri MERRIAM. (N. Amer. Fauna, No. 8, 1895, p. 135.) Type 

 locality Rockport, Aransas Co., Texas. Similar to brevipes, but larger 

 and not so dark. 



Geomys b. llanensis BAILEY. (N. Amer. Fauna, No. 25, 1905, p. 129.) Type local- 

 ity Llano, Llano Co., Texas. Larger and lighter than brevipes; skull more 

 arched. 



