AET. 1 MAMMALS FROM CHINA HOWELL 49 



make use of any burrow that they encounter, but they do make holes 

 for themselves and these generally go straight into the ground and 

 are round and smooth. At the mouths of the latter one seldom 

 catches any other rodent. 



CRICETULUS GRISEUS GRISEUS (Milne-Edwards) 



Cricetus (Cricetulus) griseus Milnb-Edwabds, Rech. Mamm., 1871, p. 133 

 (Peking, Chihli, Chiua). 



Specimens. — Ten : Tientsin, 7, and Tabul, Chihli, 2 ; and Weihsien, 

 Shantung, 1. 



The Tientsin specimens are all in winter pelage and are consider- 

 ably grayer and less cohraceous than the two summer examples from 

 Tabul. 



CRICETULUS GRISEUS FUMATUS Thomas 



'Cricetulus griseus fumatus Thomas, Ann. Mag. Nat. Hist., ser. 8, vol. 4, 

 1909, p. 503 (Cbuchiatai, near Changchun, Kiriu, Manchuria). 



SjJeciiiien^. — Three from 120 miles northeast of Sansing, Man- 

 churia. 



This is a dark race and very distinct. 



CRICETULUS GRISEUS OBSCURUS (Milne-Edwards) 



Cricetus (Cricetulus)' obscurus Milne-Edwakds, Rech. Mamm., 1871, p. 136 

 (Saratsi, Shansi, China). 



Specimens. — Eight from 20 miles west of Ningwufu, Shansi. 

 These specimens are not actually paler than comparable winter 

 material of gHseus typicus, but thej^ are much more ochraceous. 



CRICETULUS TRITON TRITON (de Winton) 



Cricetus {Criceiulun) trito)i de Winton, Proc. Zool. Soc. London, 1899, p. 575 

 (Northern Shantung, China). 



Specimens. — Fourteen: Near Tientsin, Chihli, 8; and Weihsien, 

 Shantung, 6. 



These are evidently not quite typical. Most of them have all 

 white feet but in several there is more than a suggestion of duskiness 

 about the ankle, thus approaching fuscipes. 



CRICETULUS TRITON COLLINUS G. M. Allen 



Cricetulus triton coUinus G. M. Allen, Amer. Mus. Nov., no. 179, 1925, p. 5 

 (Taipeishan, Tsinglingshan, Shensi, China). 



Spechnen. — One from the Taipeishan district, 80 miles west- 

 southwest of Sianfu, Shansi. 



This single immature, a virtual topotype of collirms, is appreciably 

 darker than any of the north Shansi specimens at hand. 



2177G— 29 i 



