MICROTUS. 81 



Microtus aphorodemus I'rt'hlc. Bioloiiiciil Siirvoy coUoction. 



North Ainer. Fauna, No. 22, pp. 52-5.3; October 31 , 1902. 



ll>r»42L\ Skill and skull. Adult tViimle. We.st .shore Hudson Ba}', 

 on haircn oiounds, about 50 miles south of Cape Eskimo, Keo- 

 watin, Canada. Auo-u.st 5, 1900. Collected by E. A. Preble. 

 Orioinai nunibt.T 15208, 



Well-made skin in tjood condition; skull perfect. 



Microtus montanus arizonensis Bailey. Biological Survey coll. 

 Proc. Biol. Soe. Wash., XII, p. 88, April 30, 1898. 



Icifo- Skin and skull. Adult luale. Springerville, Arizona. No- 

 vember 7, 1S90. Collected by E. W. Nelson. Orioinai number 

 15;i. 



Well-made skin in trood condition; skull perfect. 



Microtus pinetorum auricularis Bailey. Biological Survej'^ coll. 



Proc. Biol. Soc. Wa.sh., XII, p. 90, April 30, 1898. 



IItsI- Skin and skull. Adult male. Washington, Mississippi. May 

 26, 1892. Collected by V. Bailey. Original number 3(549. 



Well-made skin in good condition; skull perfect. 



Arvicola austerus Lc Conte. 



Proc. Acad. Nat. Sci. I'liila., VI, p. 405, this paper was favorably reported for 



publication October 25, 1853. 

 = Microtus ochrogaster (Wagner). See Allen, Bull. Amer. Mus. Nat. Hist., X, 



p. 459, November 10, 1898; Osgood, Proc. Biol. Soc. Wash., XX, p. 48, April 



18, 1907. 



2249. Skin (no record of a skull). Racine, Wisconsin. Collected by 

 Dr. 1*. K. lIo3\ Original nuin))er 950. Catalogued Fel)ruary 28, 

 1857. 



Poorly made skin, right hind leg nearly detached, l)ut specimen well preserved. 



Type not designatt'd by number. The specimen bears one old label inscribed 

 ^^Arvirold uustt'rua Kacine, Wise." on the obverse, and on the reverse "Type of 

 species." In the "Remarks" column in the old original catalogue is written 

 "Type of Maj. Le Conte." On pages 210 and 214 of Monographs of North 

 American Hodentia, Cones speaks of 2249 as the type of Arricola an-fterns. 



Microtus bairdi Merriam. Biological Survey collection. 



Proc. I'.iol. Soc. Wash., \I. i.]). 74-75, .\pril 21, IS!)7. 



7l»90t). Skin and skull. Adult female, (ilacier Peak, Crater Lake, 

 Oregon. Augu.st24, lS9»i. Collected by Dr. C. Hart Merriam and 

 V. Bailey. Original lunnber 5813. 



Well-niai'.f skin in good condition; skull with badly broken parietals and tips 

 of nasals. 

 45336—08 (i 



