CATALOG OF TYPE SPECIMENS OF MAMMALS 265 



Skull from owl pellet ; Grade B. 



Regarded by Glover M. Allen (Bull. Mus. Comp. Zool. 62: 530, Feb. 1919) 

 as a subspecies of D. rubricattis. 



Regarded by E. W. Nelson (Proc. Biol. Soc. Washington 42: 143, Mar. 

 30, 1929), as a valid species. 



f Dicrostonyx unalascensis stevensoni Nelson. 



Proc. Biol. Soc. Washington 42: 145, Mar. 30, 1929. 

 235552. Skin and skull. Adult female. Umnak Island, Aleutian 

 Islands, Alaska. December 14, 1920. Collected by D. H. 

 Stevenson, Original number 9. 



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



Genus EUNEOMYS Coues 

 *Euneomys petersoni J. A. Allen. 



Bull. Amer. Mus. Nat. Hist. 19 : 192, May 9, 1903. 

 =Euneomys chinchilloides Waterhouse. See Gyldenstolpe, Kungl. Svenska 

 Vet.-Akad. Handl. 11 (3) : 93, 1932. 



84198. Skin and skull. Adult female. Upper Rio Chico de Santa 

 Cruz, near the Cordilleras, Santa Cruz Territory, Argentina. 

 February 10, 1897. Collected by O. A. Peterson. Original num- 

 ber 390. 



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



Genus GEOXUS Thomas " 



*Oxymycterus microtus J. A. Allen. 



Bull. Amer. Mus. Nat. Hist. 19 : 189, May 9, 1903. 

 =Geoxus michaelseni (Matschie). See Gyldenstolpe, Kungl. Svenska Vet.-Akad. 

 Handl. 11 (3) : 125, 1932. 



84234. Skill and skull. Adult male. Pacific slope of the Cordil- 

 leras near the head of the Rio Chico de Santa Cruz, Santa 

 Cruz Terr., Argentina. March 7, 1897, Collected by O. A. 

 Peterson. Original number 570. 



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



Genus GERBILLUS Desmarest 

 *GerbiIlus arenicolor Miller. 



Proc. Biol. Soc. Washington 13: 163, Oct 31, 1900. 

 62153. Skin and skull. Adult male. In jungle on Yarkand River, 

 east of Maralbashi, Eastern Turkestan. February 9, 1894. Col- 

 lected by W. L. Abbott. 



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



Type designated by number, given as 62143, an error for 62153. 



" For further references regarding this genus see Osgood, Field. Mus. Nat. Hist. Publ. 229 

 (zool. ser. 12) : 113, 119, Oct. 26, 1925; Thomas, Ann. Mag. Nat. Hist. (ser. 9) 19: 656, 

 June 1927 ; and Tate, Amer. Mus. Nov. 582 : 1 (footnote) and 28-29, Nov. 14. 1932. 



