1887.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 429 



ill the followiug pairs the tips become whiter aud the liases blacker, 

 until the outer pair which, iii addition, has the entire outer web white to 

 the base, except a narrow dark stripe along the shaft. Bill and feet 

 apparantly black. 



An ailult female, fwm Canton, China {U. S. ]Sfat. 2Iiis., No. 9G431. 

 Blaldston Xo. T 181. November) is similar to the specimen just de- 

 scribed, but the gray of the head and nape is more plumbeous, the mantle 

 t)righter, and, like the fore-neck and breast, strongly suffused with 

 vinaceous. 



Measurements. 



