THOMOMYS. 285 



707. Thomomys aureus Allen. 



Thomomys aureus Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1893, 

 p. 49. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., n, 1901, 

 p. 229. Zool. Ser. 

 GOLDEN POCKET GOPER. 



Type locality. Bluff City, San Juan County, Utah. 

 Geogr. Distr. Southeastern Utah. 



a. Thomomys (tw'eus laclui o'ltiJln Bailey. 



Thomomys aiireus lackuguilla Bailey, Proc. Biol. Soc. Wash., xv, 



1902, p. 120. 

 BAILEY'S POCKET GOPHER. 



Type locality. Foothills near El Paso, Texas. 



Geogr. Distr. Texas. Range unknown. 



Genl. Char. Size small; bullas large; basi-occipital narrow; skull 

 slender. 



Color. Summer Pelage. Above dull ochraceous; beneath buffy 

 or pale cinnamon. 



Winter Pelage. Brighter ochraceous above; light buffy beneath. 



Measurements. Total length, 215 ; tail vertebrae, 65 ; hind foot, 29. 



b. Thomomys (dircns jicrragus Merriam. 



Thomomys aureus pervagus Merr., Proc. Biol. Soc. Wash., xiv, 



1901, p. no. 

 ROAMING POCKET GOPHER. 



Type locality. Espanola, Santa Fe County, New Mexico. 



Geogr. Distr. Range unknown. 



Genl. Char. Nasals broader than those of T. aureus. 



Color. Above chestnut fulvous lined with black on dorsal region ; 

 nose and mouth 'dusky ; chin white; under parts salmon. 



Measurements. Total length, 244; tail vertebrae, 73 ; hind foot, 32. 



c. Thniuoniijs cnireus pci-firx Merriam. 



Thomomys aureus perpes Merr., Proc. Biol. Soc. Wash., xiv, 1901, 



p. in. 

 LONE PINE POCKET GOPHER. 



Type locality. Lone Pine, Owens Valley, Inyo County, California. 



Geogr. Distr. East slope of the Sierras in Owens Valley, Inyo 

 County, California. 



Genl. Char. Size small; skull generally like that of T. aureus, but 

 smaller. 



Color. Winter Pelage. Above buffy gray, darkest on head; sides 

 buffy; under parts, feet, and tail whitish. 



Summer Pelage. Like that of T. aureus. 



Measurements. Total length, 215 ; tail vertebrae, 65 ; hind foot, 28. 



