it was the most easterly species obtained, as well as the most westerly. It 

 was trapped at Liu-ts'un, our most southerly point, and also in the Chiao- 

 ch'eng Shan, almost our most northerly point. It is recorded from Ning-wu 

 Fu, in North Shansi, and from the Imperial tombs, sixty miles east of Peking, 

 in Chihli. Whilst in the country south of Lan-chou I saw a large wolf one 

 morning, and in our daily excursions we came across fresh tracks of pigs and 

 musk-deer. There were quite a number of pheasants, but little else. 



The reasons for the termination of the expedition at Lan-chou have 

 already been mentioned. I was forced to return to that city, and my work 

 ceased till, on July 15th, Grant and I started on our homeward journey with 

 the main division of the expedition. We travelled almost continuously till we 

 reached T'ai-yiian Fu on September 8th, with a few short halts en route to 

 take astronomical observations, or when we were held up by rains. We took 

 the unfrequented route which runs in an easterly direction from Lan-chou, 

 collecting what material we could along the road. For the first few days our 

 path lay through utterly barren and sun-scorched mountains, so that a few 

 ground-squirrels only were seen. At Ching-ning Chou, where we stayed two 

 days, I secured two specimens of an interesting eastern polecat (Musfela larvata), 

 (Plate 51), which is superficially like the European animal, but with larger 

 teeth. A new pika {Ochoiona amectens), (Plate 52), was shot close to this place 

 by one of our men. This species is similar to Ochotona bedfordi, but is smaller 

 and with differences in the skull. Several chipmunks {Eutamias asiaticus 

 semscens), (Plate 48), were also obtained. The type of this chipmunk was 

 described from specimens from near Peking by Mr. G. S. Miller, and like 

 Apodemus speciosus, it seems to enjoy a very wide range. 



On July 25th we left Ching-ning Chou and reached a small place to the 

 north-east called Chang-t'ai-pu. That night rain fell in such torrents that we 

 were unable to proceed next day. Accordingly I enHsted the villagers into my 

 service, sending them out to catch or dig up specimens. All that day and 

 the next I was inundated with specimens, the following species being well 

 represented: — Myospalax census, Allactaga mongoUca longior (new to science, 

 Plate 52), Eutamias asiaticus senescens and Ochotona annectens (new to science, 

 Plate 52). A single specimen of Cricetulus anaersoni a.nd another polecat were 

 also amongst the animals brought in. I refused to take any more specimens 

 of Citellus, having my hands full of more important material. 



The " allactaga " which has been described by Mr. Miller as a new 

 form is a species of jerboa. It differs from Dipus sowerbyi in having five toes 

 on the hind foot instead of only three, while its ears are considerably longer, 



92 



