MAP 27— RANGE OF THE NORTHERN DEERMOUSE. 

 PeTom})scus maniculalus (Wagner") and its Northern Races. 

 This map is founded chiefly on W. H. Osgood's admiralile map in X. A. Fauna Xo. 2S (pulilishcd while my article was in press). 

 While following this as a whole, I have simplified it and added the type localities. Except in Canada, the areas of mtergradation are not 

 indicated; where shown they are dotted. Some 35 races of maniculalus are recognized by Osgood. 

 Those entering Canada are as follows: 



maniculalus nebrascensia kceni Mluralus 



arcticus arlemisiae hiilaeus holtisleri 



gracilis areas algidus eremus 



abielorum auslerus macrorhinus argentatus 



hairdi 



493 



