1908.] MAMMALS FROM NORIH CHINA. 643 



length 10*4 ; palatal foramina 5"3 ; length of upper molar 

 series 3*9. 



Hob. Shan-si — type from 100 miles IST.W. of Tai-Yuen-Pu. 

 8000'. 



Tyjye. Adult male. B.M. No. 8.8.7.71. Original number 1626. 

 Collected 3 December, 1907. 



This Hamster is readily distinguishable from C. longicmidatus 

 M.-Edw. by its grey-mixed bell}^ from C. griseus M.-Edw. and 

 C. cUchrootis Sat.* by its longer tail, and from " Urocricetus " 

 Jcamensis Sat.* by its shorter tail and smaller size. I confess 

 I fail to see any sufficient reason why the long-tailed foi-ms of 

 this group should be separated in a special subgenus, even apart 

 from the evidence given by C. andersoni, the tail of which is of a 

 more or less intermediate length. 



In laying such emphasis on the colour of the ears in G. dicliro- 

 otis, Dr. Satunin does not seem to be aware that particoloured 

 ears are a characteristic of most of the Far Eastern species, 

 C. griseus and C. ohscurus both having similar black and white 

 ears. 



I have named this pretty species after its collector, Mr, 

 Anderson, by whom its distinctness from C. griseus was noticed. 



" The common species of Hamster in Shan-si. It inhabits the 

 neighbourhood of cultivated fields, making many horizontal 

 burrows just beneath the surface of the earth." — M. P. A. 



17. Craseomys regulus Thos. 



$ . 1549. Imperial Tombs, 60 miles E. of Peking. 



I cannot perceive any character by which this Yole can be 

 distinguished from G. regulus, which was described from Korea. 



" Trapped among bushes at the foot of a talus-slide ; the only 

 specimen seen, though I made great effi)rts to find more." — 

 M. P. A. 



18. Craseomys shanseius, sp. n. 



S. 1610, 1618, 1625, 1632, 1633, 1634, 1637, 1638, 1640. 

 $. 1607, 1609, 1616, 1624, 1639. 100 miles KW. of Tai- 

 Yuen-Pu, Shan-si. 8000'. 



" Taken in sjjruce forest." 



A large pale-coloured species with comparatively short tail. 



Fur long, soft and loose ; hairs of back (in winter coat) 

 12-13 mm. in length. Upper surface pale greyish Evotomys- 

 colour, the reddish more suffused with grey than usual, though 

 possibly this is not so much the case in specimens in summer 

 pelage. Pace and sides markedly greyer, without rufous suffusion. 

 Under surface pale cream-buffy, the broad slaty bases to the hairs 

 showing through. Hands and feet white above. Tail heavily 

 haired, brown above, whitish or cream-coloui"ed on sides and 

 below. 



* Ann. Mus. Zool. St. Petersb. vii. pp. 567 & 574 (1902). 



