published by the Smithsonian Institution, have been embodied in a 
detailed report on the mammals collected by me, and they appear in 
Appendix IT. 
I must direct the readers’ attention to a paper by Paul Matschie, ‘‘ Ueber 
Chinesische Saugethiere besonders aus den Sammlungen des Herr Wilhelm 
Filchner,” containing many interesting photographs of the skulls of certain 
Chinese mammals. 
The birds of China are undoubtedly much better known than the 
mammals. Nevertheless, there seems to be no record of any work hitherto 
done in the districts traversed by our expedition. Mr. Anderson and I 
collected a few birds on the expedition referred to above, but no new species 
were discovered. A very complete account of the birds of China has been 
written by Armand David and E. Oustalet, and published under the title of 
“Les Oiseaux de la Chine.” 
As far as I know, the only reptiles, batrachians, and fishes collected 
hitherto in these districts were those obtained by Mr. Anderson and myself. 
Here again there is nothing new to report, the few species secured having 
been recorded from other parts of Asia. The number of new species of ticks, 
spiders, and fleas discovered on the present expedition shows that in this 
branch of zoology little had previously been done. 
On our leaving T’ai-yiian Fu, I began my work at once. A single 
woodmouse (Apodemus speciosus) trapped in the mountains immediately west 
of T’ai-yiian Fu, and a few chipmunks (Eutamias asiaticus senescens) shot en 
route were the only specimens secured till we reached the Chiao-ch’éng Shan 
district. This country has already been described as consisting of high, 
rugged and heavily forested mountains. It is excellent from the collector's 
point of view, and during our stay a good collection of rodents was made. 
I soon had out a long line of traps, which were visited daily. The woodmouse 
was again secured, besides Anderson’s hamster (Cricetulus anaerson’) and two 
species of voles (Craseomys shanseius and Microtus pullus). The last has been 
described as a new species by Mr. Miller; while Craseomys shanseius and 
Cricetulus andersoni were first discovered by Mr. Anderson in this district. 
The woodmouse and Anderson’s hamster were common almost everywhere. 
Craseomys shanseius was found in or near the heavy forests, which commenced 
at an altitude of about 8000 feet. One specimen was secured on the summit 
of Mo-érh Shan, the highest peak in the district. Microtus pullus is closely 
related to M. johannus, a species first found by me in the K’é-lan Shan, about 
sixty miles north of the present locality. Both species are found on open hill 
F 81 
