192 



Gavia cucuUata, Bp. C. R. xlii. p. 771 (1856). 



Gavia pipixcan, id t. c. p. 771. 



Gavia franklini, id. t. c. p. 771 ; Blasius, J.f. O. 1865, p. 371. 



Gavia kitlitzii., id. t. c. p. 771. 



Ijariis cinereo-caudatus, Phil. Sf Landb. Wiegm. Arch. 1861, p. 293. 



? Chroicocephalus atricilla, Sclater, P. Z. S. 1864, p. 179 (Mexico 



City). 

 [?J Larus franklini, Sundev. (Efv. Akad. Fork. Stockh. 1869, p. 590 



(St. Bartholomew, W. I,, " in breediug-plumag-e "). 

 Larus (Olircecocephalus) frauldini, Coues, B. N.- West, p. fio3 (1874). 

 Melanolariis iVankliui, Heine Sf Reicheiwic, Nomencl. Mus. Hein. 



p. 359 (1890). 



Achdt in hreeding-plumage. Head and upper part of the neck 

 plumbeous black, with a conspicuous elongated white patch above, 

 and another below, the eye ; lower part of the neck all round, rump, 

 and under surface white, with a rosy tinge which is deepest on tlie 

 breast and abdomen ; mantle bluish grey, the secondaries broadly 

 edged with white ; primaries all broadly tipped with white, and bluish 

 grey next the shafts on their upper parts, except the outermost, which 

 has a blackish outer web and is chiefly white on the inner web, 

 with a broad black subtermiual bar ; 2nd quill with a deeper 

 (2-2 in.) black bar, smaller white tip, and much grey above on both 



Larus franklini, ad. 



sides of the shaft {see cut) ; 3rd, 4th, and 5th similar, but the black bar 

 narrowing, until at the last it is merely as deep as the white tip 

 and is cut ofE from the grey above by a white space ; succeeding 



