* <y 232, 233, 236, ? 234. 15 miles north-east of Ching-ning Chou, 

 Kansu. Alt. 5200 ft. July 27th, 1909. 



A very common and widely distributed species. 



14. Eutamias asiaticus ordinalis, Thomas. 

 3^ 118. Yu-lin Fu, Shensi. 



A pale desert race found round the borders of the Ordos Desert, 

 where it inhabits the deep ravines, which take the place of loess gullies 

 further south and east. It has not been recorded from the desert itself. 

 It might be noted that specimen No. 185 of the preceeding species 

 closely resembles in the lightness and yellowness of its pelt E. a. ordinalis. 

 Similar agencies may have been at work in both cases to cause this 

 lightening of colour, for specimen No. 185 was taken close to country, 

 which bore some resemblance to that round, and in, the Ordos. Wide 

 stretches of flat, somewhat sandy land, was there, inhabited chiefly by 

 Citellus mongolicus, and Lepus swinhoei subluteus, two other Ordos forms. 



15. Citellus mongolicus, M. Edwards. (Plate 51). 



S' 184, ? 183. 18 miles west, north-west of Hsi-an Fu, Shensi. Alt. 

 1700 ft. May 7th, 1909. 



S 186. Lung-t6 Hsien, 40 miles west of P'ing-liang Fu, Kansu. Alt. 

 6800 ft. May i8th, 1909. 



^ 188, ? 187, 189, 190. Lan-chou Fu, Kansu. Alt. 5500 ft. June 

 4th, 1909. 



? 192. 15 miles south, south-east of Lan-chou Fu, Kansu. Alt. 

 8500 ft. June 20th, 1909. 



<? 200, $ 193. 52 miles east of Lan-chou Fu, Kansu. Alt. 6700 ft. 

 July 26th and i8th, 1909. 



? 195. 125 miles east of Lan-chou Fu, Kansu. Alt. 6300 ft. July 

 22nd, 1909. 



3" 211, ? 231. 15 miles north-east of Ching-ning Chou, Kansu. Alt. 

 6200 ft. July 26th, 1909. 



$ 248. 25 miles north-east of Ching-ning Chou, Kansu. Alt. 7000 ft. 

 July 28th, 1909. 



Common in dry or sandy districts as well as on flat plains. Parti- 

 cularly plentiful in and round the Ordos Desert. The only thing alive in 

 the famine-stricken area round Lan-chou Fu, in Kansu. Chinese name, 

 " Sha-shu," meaning "sand-rat." 



M 177 



