270 BULLETIN 17 8, UNITED STATES NATIONAL MUSEUM 



f Microtus amakensis Murie. 



Journ. Mamm. 11 : 74, Feb. 11, 1930. 

 246449. Skin and skull. Adult male. Amak Island, Aleutian 

 Islands, Alaska. July 8, 1925. Collected by Donald H. Steven- 

 son. Original number 80. 



Well-made skin in good condition ; skuU Grade A. 



fMicrotus angusticeps Bailey. 



Proc. Biol. Soc. Washington 12 : 86, Apr. 30, 1898. 

 =Microtiis longicnudus angusticeps Bailey. See Goldman, Journ. Mam.m. 

 19: 491, Nov. 14, 1938. 



iI2§I. Skin and skull. Adult male. Crescent City, Del Norte 

 24008 



County, Calif . June 16, 1889. Collected by T. S. Palmer. Orig- 

 inal number 151. 



Well-made skin in good condition ; skull Grade A. 



fMicrotus aphorodemus Preble. 



North Amer. Fauna 22 : 52, Oct. 31, 1902. 

 106422. Skin and skull. Adult female. West shore Hudson Bay, 

 on barren grounds, about 50 miles south of Cape Eskimo, near 

 mouth of Thlewiaza Kiver, Keewatin, Canada. August 5, 1900. 

 Collected by E. A. Preble. Original number 3208. 

 Well-made skin in good condition ; skull Grade A. 



*Microtus arvalis duplicatus Miller. 



Catalogue of the Mammals of Western Europe . . . , p. 686, 1912. 

 112213. Skin and skull. Adult male. Tenkitten, near Konigsberg, 

 Germany, 1901. Collected by F. L. J. Boettcher. Original num- 

 ber 11. Type specimen selected by F. H. van der Brink. 



Well-made skin in good condition ; skull Grade A. 



See van der Brink, Zeitschr. fiir Saugetlerkunde 4 : 251, Oct. 2, 1930, who 

 regards Miller as the first writer to apply the name duplicatus to a subspecies 

 and not to the mere individual type of tooth structure so designated by 

 Rorig and Borner, Arb. kais. biol. Anst. Land und Forstwirtsch, Berlin 

 5 (2) : pi. 5, fig. 88, 1905. 



*Arvicola austerus LeConte. 



Proc. Acad. Nat. Sci. Philadelphia 6: 405, favorably reported for publi- 

 cation Oct. 25, 1853. 



=Microtus ochrogastcr (Wagner). See J. A. Allen, Bull. Amer. Mus. Nat. Hist. 

 10:459, Nov. 10, 1898; Osgood, Proc. Biol. Soc. Washington 20: 48, Apr. 

 18, 1907. 



2249. Skin (no record of a skull). Kacine, Racine County, Wis. 

 Collected by P. R. Hoy. Original number 950. Cataloged Feb- 

 ruary 28, 1857. 



