LARUS. 219 



f>. Ti'omso, Norway, 11 til Junp, Stebohiu Coll. 



y. Stockholmen, Smoleu Islauds, L'9th Dr. K. BowUler SLarpe [P.]. 



Mav {It. B. .y.). 



'5. Stockholmen, 29th May [R. B. S.). Dr. R. Bowdler Sharpe [P.] 



;3. Stockholmen, 29th May [R. B. S.). Dr. R. Bowdler Sharpe [P.]. 



17. Stockholmen, 2ytli May {R. B. S.). Dr. R. Bowdler Sharpe [PJ. 



1. Sweden. S. 0. Sahlin, Esq. [P.]. 



2. Denmark, loth June. Seebohm Coll. 



1. Riigen, Baltic, June (r. Zf«//rt?2(/). Seebohm Coll. 



2. West Baltic, 8th June {T. 11.). Seebohm Coll. 

 2. R. Petchora, lat. G(U° N., l-'jth June Seebohm Coll. 



(H. Seebohm ^- J. A. Hare ie- Brown). 

 1. Yenesei Valley, lat. 60.p N., June Seebohm Coll. 

 {H. Seebohm). 



Larus brachyrhynchus, Richardson. 

 (Plate XVII. fig. 1.) 



Larus brachvrhvnchus, Baird, Breiver ^- Ridqio. Water Birds N. Am. 

 ii. p. 247 (1884) ; Nelson, Report Nat. Hist. Alaska, p. 54 (1887); 

 MacFarlane, Froc. U. S.Nat. A/ms. xiv. p. 418 (1891) ; Saunders, 

 Cat. Birds B. M. xxv. p. 283 (1896) ; S/iarpe, Hand-l. i. p. 142 



(1890). 



The eggs of the Short-billed Gull in the Collection are of a pointed 

 oval form. One example has the ground of a pale greenish colour ; 

 another of a full buft' colour ; and two others of a greenish-grey 

 colour. The markings, which consist of spots, small blotches and a 

 few streaks, are of a chocolate or blackish-brown colour and are, 

 in all cases, more dense at the large end, where they form a more 

 or less brokeTi cap or zone. Pour specimens measure respectively : 

 2-12 by 1-56 ; 2-05 by 1-57 ; 2-21 by 1-5 ; 2-15 by 1-50. 



1. N. America [Smiths. Imt.). Salvin-Godman Coll. 



1. Fort Yukon, Alaska (Ji'. W. Nelsoyi: Salvin-Godman Coll. 



Henshaiv Coll.). 



2. Fort Andersun, Arctic America (7i. Saunders Coll. 



Mcu:Favlane). 



Lams glaucescens, Xaum. 



Larus glauce.«cens', Baird, Breicer ^- Ridgto. Water Birds N. Am. ii. 

 p. 223 (1884); Nelson, Report Nat. Hist. Alaska, p. 53 (18S7) ; 

 Saunders, Cat. Birds B. M. xxv. p. 284 (189G); Sharpe, Haitd-l. i. 

 p. 142 (1899). 



The eggs of the Glaucous-winged Gull are very uniform and 

 resemble the common typo of egg of L. arcjentatus. The ground- 

 colour varies from pale creamy-buii to a pale buff, and this is evenly 

 spotted and blotched all over with yellowish and chocolate-brown, 

 sometimes approaching black, and underlying pale purple. A 

 few have, in addition to the normal markings, some lines and 

 scrawls. The eggs measure from 2'75 to o"05 in length, and from 

 1-8G to 2 in breadth. 



