1916] Taylor: Beavers of Western North America 431 



(T "v\ Fig- ^' Outline of posterior portion of cranium 



e. Castor canadensis canadensis; inner line, no. 174526 9 , U. S. Nat. 

 Mus., Nepisiquit River, New Brunswick; outer line, no. 174525 $, 

 U. S. Nat. Mus., same locality. 



