T.ARU3. 



215 



ground being of an olive-buff colour and the markings being pretty 

 evenly distributed over the egg. They vary from 2'55 to 3*1 in. 

 length, and from ]/75 to 2 in breadth. 



2. R. Petchora, lat. 67 N., 19th June Seebohm Coll. 



(H. Seebohm fy J. A. Harvie- 



Brown). 

 1. R. Petchora, lat. 68 N., 26th June Seebohm Coll. 



(H. S. 8f J. A. H.-B.). 

 8. Yenesei Valley, lat. 70^ N., 7th Seebohm Coll. 



July (H. Seebohm). 

 13. Yenesei Valley, lat. 7H N., 10th Seebohm Coll. 



July (//. S.). 



Larus occidentalis, Audult. 



Larus occidentalis, Baird, Brewer fy Ridgw. Water Birds N. Am. ii 

 p. 230 (1884) ; Saunders, Cat. Birds B. M. xxv. p. 257 (1896) 5 

 Sharpe, Hand-l. i. p. 141 (1899). 



The four eggs of the Western Gull in the Collection are abso- 

 lutely indistinguishable from those of L. affinis and typical eggs of 

 L. fuscus. They measure respectively : 2-50 by 1*9 ; 2-71 by 1*9 ; 

 2-9 by 1-9 ; 2-83 by 2. 



1. Pyramid Lake, Nevada. Saunders Coll. 



2. Farallones Point, Mexico ( //. Gruber : Salvin-Godman Coll. 



Henshaw Coll.). 

 1. N. America. Salvin-Godman Coll, 



Larus argentatu&, Gm. 



Larus argentatus, Thien. Fortpflanz. ges. Vog. tab. xic. fig. 4,a-z (1845-54) ; 

 Hewitson, Eggs of Brit. Birds, ii. p. 499, pi. cxl. (1856) ; Dresses 

 Birds Eur. Viii. p. 399 (1873) ; Baird, Brewer # Ridgw. Water 

 Birds N. Am. ii. p. 235 (1884) ; Seebohm, Brit. Birds, iii. p. 326, 

 pi. 51 (1885) ; id. Eggs of Brit. Birds, p. 110, pi. 33. figs. 1, 2 (1896) ; 

 Saunders, Cat. Birds B. M. xxv. p. 260 (1896) ; Sharpe, Hand-l. i. 

 p. 141 (1899). 



Laroides argentatus, Baedeker, Eier Eur. Vog. tab. 40. fig. 1 (1855-63). 



The eggs of the Herring Gull present nearly all the types of 

 coloration to be found among the eggs of L. fuscus, but they are, 

 as a body, rather larger. They measure from 2'55 to 3 in length, 

 and from 1'75 to 2-1 in breadth. 



2. N. America (Smiths. Inst.}. 



2. Hudson's Bay ( C. Drexler : Henshaw 



Coll.). 

 1. Selkirk Settlement (D. Gunn : 



Henshaw Coll.}. 



1. Massachusetts (T. M. Brewer). 

 13. Copinsha, Orkneys (Hargitt Coll.). 



3. Saltee Islands, Ireland, 27th May 

 Breachy, Donegal, 14th May. 

 Farn Islands, June (H. Seebohm). 

 Fara Islands (H. Seebohm). 



Salvin-Godman Coll. 

 Salvin-Godman Coll. 



Salvin-Godman Coll. 



Salvin-Godman Coll. 

 Seebohm Coll. 

 Seebohm Coll. 

 Saunders Coll. 

 Seebohm Coll. 

 Seebohm Coll. 



