ABSTRACT 



This report describes tiie factors in Alaska's environment tliat affect ttie distribu- 

 tion of mammals in that State; it considers 103 species of mammals (including 20 

 cetaceans) and IIC additional subspecies. Ranges and habitat requirements are 

 mentioned briefly. For most species, maps show record stations and general range 

 in the State and adjacent waters ; ranges of subsi^eeies are not mapised separately. 

 The grizzly and brown bears are lumited, pending further taxonomic studies. Listetl 

 are 128 type localities of mammals within the State of Alaska. This circular makes 

 available current data on mammal distribution, preliminary to further systematic 

 work. 



IV 



