199 



Perisoreus Canadensis, var. capitalis BAIRD. 



CH. Similar to Canadensis, but much lighter colored, and with the 

 bill slenderer. The head wholly white, except the nape, which is 

 plumbeous ; plumbeous of the body of a fine ashy tint. Young more 

 uniformly colored, but altogether paler than the corresponding age 

 of Canadensis. Hal. Rocky Mountains of the U. S. (Types, No. 

 61,084, Mus. S. I., adult, Henry's Fork, Wyoming Ter. and No. 18,440, 

 young, Fort Benton. 



Perisoreus Canadensis, var. obscurus RIDGWAY. 



CH. Much darker than Canadensis, the head blackish to the fore- 

 head, which is only narrowly whitish. Young much darker than that 

 of Canadensis. Hob. Northwestern coast, from Oregon to Alaska. 

 (Types, No. 8,454, adult, Shoalwater Bay, Washington Ter., and No. 

 5,904, young, same locality. 



Cyanocitta ultramarina, var. Arizona*, RIDGWAY. 



CH. Similar to variety sordida, of eastern Mexico, but blue much 

 paler and more greenish, the whole dorsal region decidedly ashy. 

 Hab. Southern Rocky Mountain region of U. S. (Types, No. 18,279, 

 ad., Fort Buchanan, Arizona; and No. 8,469, juv., Copper Mines, Ari- 

 zona.) 



Cyanocitta Floridana, var. Sumichrasti RIDGWAY. 



CH. Most nearly resembling var. Californica, but the superciliary 

 white streak nearly obsolete, and the wings and tail much longer. 

 Hab. Table lands of Mexico, on the eastern side. (Type, No. 42,149, 

 Orizaba, Mexico.) 



Canace obscura, vsLT.fuligmosa RIDGWAY. 



CH. Most nearly resembling var. obscura (as distinguished from 

 var. Richardsoni), but the colors much darker in shade, and the 

 dark areas more prevalent. In specimens from the Sitka district the 

 upper parts much washed with castaneous-rusty. Hab. Northwest 

 coast, from Oregon to Sitka. (Types, No. 11,505, $ ad., Cascade 

 Mts. ; No. 11,826, ? ad., and No. 11,827, juv., Chiloweyuck Depot, 

 Washington Ter.) 



Cupidonia cupido, var. pallidicincta RIDGWAY. 



CH. Much smaller, and lighter colored than var. cupido. ' Upper 

 parts about equally barred with pale grayish ochraceous and brpwnish- 



