246 



Mearns, Descriptions of New Birds from Arizona. 



I July 



prove to be an inhabitant of the whole area of the Great Basin. 

 It is considerably larger than the Eastern bird, as shown in the 

 following 



MEASUREMENTS.* 



Length . . 

 Expanse . . 

 Wing . . . 

 Tail . . . . 

 Oilmen . . 

 Bill from 



nostril. . . 

 Gape .... 

 Tarsus . . . 

 Middle toe 



and claw . 

 Middle toe . 

 Middle claw 



Spinus tristis pallidus. 



Coccothraustes vespertina montana Ridgwa) r . 



On comparing thirteen Evening Grosbeaks from Arizona with 

 seventy-two specimens from Fort Snelling, Minnesota, all collected 

 by the writer, the Arizona form appeared to be separable from 

 the Eastern, as a subspecies. Through the kindness of Messrs. 

 Robert Ridgway, J. A. Allen, and George B. Sennett, I was 

 enabled to add to this material all of these Grosbeaks in the 

 United States National Museum at Washington, in the Ameri- 

 can Museum of Natural History of New York, and in the private 

 collection of Mr. Sennett, thus bringing together about 150 speci- 

 mens. From the study of this quite extensive material, it 

 became apparent that the Western bird, in general, is very dif- 

 ferent from that inhabiting the region of the Great Lakes and 

 north-central portion of North America. The distinction rests 

 entirely on the female, such apparent characters as may seem to 

 exist in the male, when individual examples are compared, being 

 completely overlapped and extinguished when large series are 



*In millimetres; taken from specimens in the flesh, by the author. 



