220 



LONG-WINGED SWIMMERS — LONGIPENNES. 



Primaries pale pearl-blue, like the mantle, but the five outer primaries ma 

 gray, as follows : the first quill has the outer web ash-gray to within three in 

 urecl along the shaft, and an inch farther along the edge ; the inner web has a 

 about .25 of an inch wide next the shaft, and extending to within 2.75 in 

 remainder, also the terminal portion of the outer web, being pure white, 

 no ash-gray on the inner web, which is very pale pearl-blue basally, and chf 

 into pure white toward the end ; the outer web is pure white for the space oJ 



Larus Kumlieni. 



tip (measured along the shaft), whence begins an elongated space of ash-grs 

 width of the web for about 1.25 inches, then gradually narrowing toward 

 disappearing at a point a little more than six inches from the tip of the quill, 

 an abruptly defined white tip about half an inch in extent, this being immedi 

 ash-gray bar, more than half an inch wide, entirely across the inner web, au 

 space of the same color on the outer web, which extends toward the base o 

 distance of five inches from the tip, though occupying the full width of the W' 

 inches. Hhe fourth quill is similarly marked, except that the ash-gray is fuinf 

 especially on the outer web, where it follows the shaft for only the width of 

 web, while along the edge it reaches to a distance of less than 2.50 inches fron 

 these gray spaces both webs are pure white for about 1.25 inches, when this co 

 to the prevailing pale pearl-blue. The fifth quill has the terminal two ii 

 slightly relieved by a nearly obsolete small spot of light gray on each web, 

 from the tip. The remaining primaries are uniform pale pearl-blue, with 

 two colors passing gradually together. " Iris cream-color ; bill yellow, wit 

 lower mandible ; orbital ring reddish purple ; legs and feet flesh-color " (Ku: 



