THE AMERICAN MUSEUM JOURNAL 



nearly all of the species of the regions visited, and include a number 

 scarcely represented before in any museum, while nearly all are 

 new to our own collection, and hence of the highest importance. 

 Especially noteworthy is a large series of the Golden Lemming, 

 of which we had previously but a single immature specimen, and 

 of which only a very few had ever been seen by naturalists. 

 Among other noteworthy specimens mention should be made 

 of the series of Osborn Caribou, the largest and handsomest 

 known species of the group, and also of the Stone Sheep, both 

 discovered in this same region by Mr. Stone on previous expe- 

 ditions. 



FORTHCOMING REPORT ON THE SIBERIAN MAMMALS 



COLLECTED BY THE JESUP NORTH PACIFIC 



EXPEDITION. 



In addition to the ethnological work undertaken in eastern 

 Siberia by the Jesup North Pacific Expedition, extensive collec- 

 tions were made in natural history, particularly of mammals, 

 bii"ds and fishes. Mr. N. G. Buxton of Johnstown, Ohio, an 

 experienced collector, was especially employed for the natural 

 history work during the years igoo and 1901, and a considerable 

 number of specimens were also secured by other members of the 

 expedition. A report on the mammals has already been pre- 

 pared for publication in the Museum Bulletin, and other re- 

 ports will follow on the birds and fishes. The collection of 

 mammals numbers over 500 specimens, representing 30 species, 

 of which about one third have proved new to science. The 

 material is all new to the Museum, and includes a large number 

 of specimens that will be eventually mounted for exhibition. 



A ntmiber of the new species show unexpectedly close rela- 

 tionship with American species, and give evidence that eastern 

 Siberia has derived some of its present mammaHan life from 

 boreal America, and doubtless within a comparatively recent 

 period. The American origin of various early types that eventu- 

 ally attained circumpnlar distribution, as the horse, camel and 



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