CONTENTS. 



Page. 



General account of the region, 1 )y Wilfred H. Osgood 7 



Itinerary 7 



Faunal districts 8 



Lynn Canal district 8 



White Pass district 9 



Canadian Yukon district — Lake subdivision 10 



River subdivision 12 



Hudsonian Yukon district 13 



Alaska Tundra district 15 



Summary of faunal districts 16 



Previous work 18 



New species - 19 



Mammals of the Yukon region, by Wilfred H. <Jsgood 21 



Introduction i 21 



List of species and subspecies 22 



Annotated list of species 22 



Birds of the Yukon region, with notes on other species, by Louis B. BishoiJ. . 47 



Introduction 47 



Classified lists of species 51 



Annotated list of species 57 



