thomomys. 287 



Cabezox Pocket Gopher. 



Type locality. Cabezon, San Gorgonio Pass, Riverside County, 

 California. 



Geogr. Distr. Known only from the type locality. 



Ge)il. Char. Smaller than T. perpallidus; tail long, ears large; 

 interparietal quadrangular; bullae small. 



Color. Above and on sides buffy ochraceous or drab brown; nose, 

 lips, chin, and pouches dusky; under parts white or pale salmon. 



Measuremejits. Total length, 235 ; tail vertebrae, 79 ; hind foot, 30. 



713. Thomomys cervinus Allen. 



Thomomys cervinus Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1895, 

 p. 203, fig. I. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 230. Zool. Ser. Id. Mamm. Middle Amer. & W. In- 

 dies, F. C. M. Pub., IV, Pt. I, 1904, p. 340. Zool. Ser. 

 Cervine Pocket Gopher. 



Type locality. Phoenix, Maricopa County, Arizona. 



Geogr. Distr. Southern Arizona into State of Sonora, Mexico. 



714. Thomomys sinaloae Merriam. 



Thomomys sinalocB Merr., Proc. Biol. Soc. Wash., xiv, 1901, p. 108. 



Elliot, Mamm. .Middle Amer. & W. Indies, F. C. M. Pub., iv, 



Pt. I, 1904, p. 339. Zool. Ser. 

 SiNALOA Pocket Gopher. 



Type locality. Altata, State of Sinaloa, Mexico. 

 Geogr. Distr. Known only from the type locality. 



715. Thomomys altivallis Rhoads. 



Thomomys altivallis Rhoads, Proc. Acad. Nat. Scien. Phil., 1895, 

 p. 34. Elliot, Syn. N. Am. ^lamm., F. C. M. Pub., 11, 1901, 

 p. 230. Zool. Ser. 

 Rhoads' Pocket Gopher. 



Type locality. San Bernardino Mountains, California. Altitude, 

 5,000 feet. 



Geogr. Distr. ]\Iountains of southeastern California. 



716. Thomomys fossor Allen. 



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

 p. 51. Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, 

 p. 230. Zool. Ser. 

 Delving Pocket Gopher. 



Type locality. Florida, La Plata County, Colorado. • Altitude, 

 7,200 feet. 



Geogr. Distr. Upper San Juan region. Colorado. 



