NINTH CHAPTER 



A NEW SPECIES OF CARIBOU 

 RANGIFER McGUIREI 



I LE the whole purpose of our trip to 

 the North was collecting specimens, yet 

 unconsciously, it seems, we were so fortunate 

 as to discover a species of caribou that was 

 quite new to science. This form is charac- 

 terized by the differences in the color and mark- 

 ings, the form of the antlers and the cranial and 

 dental variations when compared with its rela- 

 tives, osborni on the south, and stonei on the 

 west. 



Of interest in the present connection is the 

 evidence that the herds of migratory caribou 

 that cross the Yukon River in the vicinity of 

 Fairbanks belong to this variety, for while the 

 type specimen was obtained far south of that 

 point, the number of animals is greatly increased 

 during the fall months through arrivals from the 

 northwest, and it is probable the type locality 

 represents the southern limits of the breeding 

 range of mcguirei. 



I am including a description of the new 

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