NOETH AMEBICAN LAND MAMMALS. 241 



t*Thomomys perpallidus (Merriam). 



1886. Thomomys talyoides 'perpallidus Merriam, Science, vol 8, 



p. 588. December 24, 1886. 

 1893. Thomomys perpallidus Allen, Bull. Amer. Mus. Nat. 



Hist., vol. 5, p. 54. April 28, 1893. 

 Type Locality. — Colorado Desert, Imperial Coimty, California. 



t*Thomomys pygmaeus Merriam. 



1901. TJiomomys pygmseus Merriam, Proc. Biol. See. Wash- 

 ington, vol. 14, p. 115. July 19, 1901. 



Type Locality. — Montpelier Creek, Bear County, Idaho. 

 Altitude, 6,700 feet. 



t*Thomomys quadratus Merriam. 



1897. Thomomys quadratus IMerriam, Proc. Biol. Soc. Wash- 

 ington, vol. 11, p. 214. July 15, 1897. 

 Type Locality. — The Dalles, Wasco County, Oregon. 



*Thomomys rufescens Wied. 



1839. Thomomys rufescens Wied, Nova acta phys. med. acad. 



caes. Leop.-Catol., vol. 19, pt. 1, p. 378. 

 1893. Thomomys rufescens Allen, Bull. Amer. Mus. Nat. Hist., 



vol. 5, p. 62. April 28, 1893. 

 Type Locality. — Missouri River, exact locality not kno^\Ti. 



(See Allen, Bull. Amer. Mus. Nat. Hist., vol. 5, p. 62, April 28 



1893.) 



Regarded by Allen (Bull. Amer. Mus. Nat. Hist., vol. 5, p. 67, April 28, 

 1893) as questionably distinct from T. talpoides. 



*Thomomys scaptenis Elliot. 



1903. Thomomys scapterus Elliot, Fie-ld Columb. Mus., publ. 



87, zool. ser., vol. 3, p. 248. December, 1903. 

 Type Locality. — Hannopee Canyon, Panamint Mountains, 

 Inyo County, California. 



t*Thomomys sinaloae Merriam. 



1901. Thomomys sinalose Merriam, Proc. Biol. Soc. Washing- 

 ton, vol. 14, p. 108. July 19, 1901. 

 Type Locality. — Altata, State of Sinaloa, Mexico. 



*Thomomys talpoides talpoides (Richardson). 



1828. Cricetus talpoides Richardson, Zool. Journ., vol. 3, p. 518. 

 1857. Thomomys talpoides Baird, Mamm. N. Amer., p. 403. 

 1885. Thomomys talpoides talpoides True, Proc. U. S. Nat. Mus., 



vol. 7 (1884), p. 598. 1885. (Part.) 

 Type Locality. — Probably Saskatchewan, Canada. (See Allen, 



Bull. Amer. Mus. Nat. Hist., vol. 5, p. 55, April 28, 1893.) 

 43900°— Bull. 79—12 16 



