1916] Taylor: Beavers of Western North America 439 



Specimens nos. 4347 and 210 are similar in coloration, the 

 former being slightly paler. No. 209 is much darker than either, 

 the rest of the series from Admiralty being nearest 209. 



phacus. Hamular blades (see fig. F, p. 430) broader (no. 210, 4.1 

 mm.; 209, 4.1. No. 4347, 2.5; 4225, 2.5; 4224, 3.1). Distance from 

 most dorsal point on outline of foramen magnum to inion less 

 (see fig. G, p. 431 ; no. 210, 19.4 mm. ; 209, 17.1. No. 4347, 20.5 mm. ; 

 4225, 22.4; 4224, 22.7). 



