OENITHOLOGICAL EXPLORATIONS. 



69 



and tomia ; an orange red spot on each side of the lower mandible ; 

 angle of mouth yellowish flesh color, leaked eye-ring, reddish violet 

 gray. Feet pinkish flesh color; nails horny black with whitish tips. 



IS'ew feathers were coining out on head, neck, and back, the whole 

 plumage being quite fresh and new. 



The wliole plumage, except the wings and the mantle, dazzling white. 



mm. mm\\wmiim//M!M};i'M sm\iiiiii^ 



Fig. 3. — First three primaries of Larus cachinnans. 



The latter pure bluish slate gray without any mixture of brownish, of a 

 shade just between the same parts in Larus occidentalis and L. domini- 

 canus, being a little lighter than the lightest L. marinus I have seen, and 

 easily distinguishable from the latter by the pureness of the gray, which 

 has a decided inclination to bluish. The coloration and pattern of the 

 wings are essentially similar to those of L. marinus and cnchinnans and 



