MAMMAIiS OF THE MEXICAN BOUNDARY. 501 



MICROTUS MOGOLLONENSIS (Mearns). 

 MOGOLION HOUNTAIN VOLE, 



Armcola rmgollonmsis Meabns, Bull. Am. Mus. Nat. Hist., II, Feb. 21, 1890, p. 283 



(original description). 

 M[icrotus] mogoUonensis Miller, Proc. Biol. Soc. Washington, XI, p. 68, Apr. 21, 1890. 

 Microtus mogoUonensis Bailey, North American Fauna, No. 17, June 6, 1900, p. 56 



(Revision of American Voles of the genus Microtus).— Miller and Rehn, Proc. 



Bost. Soc. Nat. Hist., XXX, No. 1; Dec. 27, 1901, p. 123 (Syst. Results Study N. 



Am. Mam. to close of 1900). 

 [Microtus] mogoUonensis Elliot, Field Col. Mus., Zool. Ser., II, 1901, p. 192 (Synop. 



Mam. N. Am.). 



Type-locality. — Bakers Butte, Mogollon Mountains, Yavapai County, 

 Arizona. Altitude, 8,000 feet. ' 



MICROTUS MEXICANUS GUADALUPENSIS Bailey. 

 GUADALUPE MOUNTAIN VOLE. 



Microtus m^xicunus guadalupensis Bailey, Proc. Biol. Soc. Washington, XV, p. 118, 

 June 2, 1902 (original description). — Miller and Rehn, Proc. Bost. Soc. Nat. 

 Hist., XXXI, Aug. 27, 1903, p. 91 (Syst. Results Study N. Am. Land Mam. during 

 the years 1901 and 1902). 



Type-locality. — Guadalupe Mountains, El Paso County, Texas. 

 Altitude, 7,800 feet. 



