OCT., 1900.] NEW SPECIES. 19 



In 1874, with the establishment of a meteorological station at St. 

 Michael, work was begun by Lucien M. Turner. Ho collected about 

 St. Michael and secured specimens from the fur traders and natives 

 on the Yukon as far up as Fort Yukon. The results of his work were 

 published in the Arctic Series of the Signal Service.^ 



Turner was relieved in 1877 by E. W. Nelson, who continued to 

 collect specimens until 1881. His work was more extensive than that 

 of Turner, but was carried out along the same lines. He made several 

 trips up and down the coast from St. Michael, and also worked about 

 the Yukon delta and up the river as far as Anvik. L. N. McQuesten, 

 who conducted a trading post at Fort Reliance, furnished him with 

 numerous specimens and much valuable information. The results of 

 Nelson's work were also published in the Arctic Series of the Signal 

 Service ^ and form by far the most valuable contribution to the natural 

 history of Alaska jet made. In 1889 an important report ^ was pub- 

 lished by Dr. George M. Dawson, covering the region of the sources 

 of the Yukon and down as far as Fort Selkirk. This report contains 

 detailed descriptions of the physical features of the upper river, notes 

 on natural history, particularly on the distribution of trees, and a list 

 of plants by John Macoun. 



NEW SPECIES. 



Nine new species and subspecies of mammals arc doscril^ed in the 

 present report. They are as follows: 



Scluropterus yukonensis. 

 Sciurus hudsonicus petalaris. 

 Eutamias caniceps. 

 SpcrmopMlus emj)etra j)lesitis. 

 Neotoma saxamans. 



Fiber spatulatus. 

 Lepus saliens. 

 Lutreola mso^i ingens. 

 Mustela amerlcana acluosa. 



In the collection of birds, three new forms were found. These have 

 been described by Dr. Bishop * as follows : 



Canachites canadensis osgoodi. I Contopus richardsoni saturalH,'^. 



Sayornis saya yukonensis. \ 



^ Contributions to the Natural History of Alaska, by L. M. Turner, Arctic Series, 

 Signal Service, No. II, Washington, 1886. 



'^ Report upon Natural History Collections made in Alaska, by E. W. Nelson, Arctic 

 Series, Signal Service, No. Ill, Washington, 1887. 



^ Geological and Natural History Survey of Canada, Annual Report, HI (1887-88), 

 Pt. I, 6 B-277 B, 1889; 



* Auk, XVII, 113-120, April, 1900. 



