27. Craseomys shanseius, Thomas. 



^ 27, 29, 36, 39, 9 41. Chiao-ch'^ng Shan, 90 miles west of T'ai-yiian 

 Fu, Shansi. Alt. 8000 to 9200 ft. October 9th to 13th, 1908. 



All trapped amongst moss-grown rocks in or near dense spruce or 

 larch woods. Specimen No. 41 was caught on the summit of Mo-6rh 

 Shan, the highest peak in the district (9200 ft.). Common in moun- 

 tainous and well-wooded districts ; but not found elsewhere. These 

 specimens form a topotypical series, the first known specimens having 

 come from this same district. Also recorded from mountains near K'^-lan 

 Chou and from those near Ning-wu Fu, further north in the same province. 



This vole feeds upon leaves of young plants growing amongst the 

 rocks, underneath which its burrows ramify. It can easily be tempted 

 into traps with a little grain or millet. 



28. Myospalax cansus, Lyon. (Plate 48). 



3' 35. Chiao-ch'^ng Shan, mountains 90 miles west of T'ai-yiian Fu, 



Shansi. Alt. 7000 ft. October 12th, 1908. 



<? 115, 117, ? 99, 100, 102, 116. Yii-hn Fu, Shensi. Alt. 3000 ft. 



November 17th to 21st, 1908. 



3 143. Yen-an Fu, Shensi. Alt. 2800 ft. January 2nd, 1909. 



<? 201, 202, 209, 214, 215, 216, 217, 218, ? 203. 15 miles north of 



Ching-ning Chou, Kansu. Alt. 6200 ft. July 26th and 27th, 1909. 



Specimen No. 35, an adult male, is the only one of this species 

 recorded from Shansi. In some ways this specimen differs from those 

 secured from Shensi and Kansu. The skull is heavier throughout, with 

 more pronounced ridges. It is not considered advisable to separate it 

 from M. camus, which it most resembles, especially as there is only the 

 one specimen from this locality. The Shensi and Kansu specimens are 

 identical and cannot be separated. 



With these facts in view it would seem that the two species, M. camus 

 and M. fontanierii, overlap each other in their distribution. A specimen 

 o{ M . fontanierii was secured in the Southern Ordos, at a point lying almost 

 exactly between Yii-lin Fu, in Shensi, and Ching-ning Chou, in Kansu, at 

 or near both of which places M. cansus has been secured. 



At the same time, here is a specimen of M. cansus which has 

 encroached upon the acknowledged habitat of M. fontanierii in Shansi. 

 More material is needed before this and other points can be cleared up. 



18S 



