146 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Type locality. — San Francisco Mountain, Coconino County, 

 Arizona. 



Thomomys fulvus alticola Allen. 



1899. Thomomys fulirus aUicolus Allex, Bull. Amer. mus. 



nat. hist., xii, p. 13. April 4, 1899. 

 Type locality. — Sierra Laguna, Lower California, Mexico. 



Altitude, 7000 feet. 



Thomomys fulvus anitae Allen. 



1898. Thorn oiui/s fulvus anitae Allex, Bull. Amer. mus. nat, 



hist., X, p. 146. AprU 12, 1898. 

 Type locality. — Santa Anita, Lower California, Mexico. 



Thomomys fulvus intermedius Mearns. 



1897. Thoinoiiiij.s fill r us iidermedlus Mearxs, Proc. U. S. 

 nat. mus., xix, }). 719. July 30, 1897. 



Type lo< ality. — Summit of Huachuca Mountains, southern 

 Arizona. Altitude, 9000 feet. 



Thomomys fulvus martirensis Allen. 



1898. Tho)nom i/s ful V us viartirensis Allen, Bull. Amer. mus. 

 nat. hist., x, p. 147. April 12, 1898. 



Type locality. — San Pedro Martir Mountains, Lower Cali- 

 fornia, Mexico. Altitude, 8'200 feet. 



Thomomys fulvus nigricans Khoads. 



1895. T/iiuiKuuijs /ulcus /tlt/r leans Rhoads, Proc. acad. nat. 



sci. Phila., p. 36.* February 21, 1895. 

 Type locality. — Witch Creek, San Diego County, California. 



Thomomys laticeps Baird. 



is.'t.i. Tlnunonojs laf trips Baird, Proc. acad. nat. sci. Phila., 

 VII, ]). 335. April, 1855. 



1893. T/iomoruys laticeps Allen, Bull. Amer. mus. nat. hist., 

 Y, p. 63. April 28, 1893. 



Type locality. — Humboldt Bay, Humboldt County, Cali- 

 fornia. 



Thomomys mazama Merriam. 



1897. T/ioiiioiin/s uiazauHi Merriam, Proc. biol. soc. Wash- 

 ington, XI, p. 214. July 15, 1897. 



Type locality. — Crater Lake, Mount Mazama, Klamath 

 County, Oregon. Altitude, 6000 feet. 



