LARUS. 211 



buff, olive-buff, and light stone-colour. The markings are sometimes 

 deep black, at other times yellowish brown and chocolate-brown, 

 and there are the usual pale purple underlying spots and blotches. 

 Examples measure from 2 to 2-3 in length, and from T45 to 1-0 

 in breadth. 



1. Australia. Saunders Coll. 



"1. Australia. Gould Coll. 



3. Jones's Island, N.W. Australia. Lieut. G. Oliver [P.]. 



2. Gippsland, Victoria. F. A. Pkilbrick, Esq., Q.C. [P.]. 



3. Tasmania ( Wilson). Gould Coll. 

 1. Port Davey, Tasmania. Gould Coll. 



Larus scopulinus, Gray. 



Larus scopulinus, Potts, Tr. N. Z. Inst. ii. p. 76 (1869); Butter, Bints 

 Xew Zeal 2nd ed. ii. p. 55 (1888); Saunders, Cat. Birds 13. M. 

 xxv. p. 238 (1896) ; Sharps, Hand-l i. p. 141 (1899). 



The eggs of the lled-billed Gull in the Collection are very similar 

 to each other. They are of a rather narrow oval shape. The 

 ground is of an olive-buff colour, and this is marked with well- 

 defined small spots and blotches of yellowish and chocolate-brown 

 and underlying pale purple. In three examples there is a distinct 

 tendency for the markings to form an irregular zone round the 

 large end. Four specimens measure respectively : 2-2 by 1-45, 2'15 

 by 1-45, 2-25 by 1-45, 2-17 by 1-55. 



4. New Zealand. Sir George Grey [P.]. 



Larus hartlaubi (Bruch). 

 (Plate XVII. fig. 2.) 



Larus hartlaubi, Sharpe, ed. Layard, Birds S. Africa, p. 698 (1884) ; 

 Saunders, Cat. Birds B. M. xxv. p. 240 (1896) ; Sharpe, Hand-Li. 

 p. 141 (1899). 



Of the two eggs of Hartlaub's Gull in the Collection, one is of 

 a very pale greenish stone-colour and the other is buff-coloured. 

 In both, the markings are pale purple, purplish brown or yellowish 

 brown, and they are evenly and somewhat densely distributed over 

 the shell. The specimens measure respectively : 2-19 by 1-42 ; 2-10 

 by 1-41. 



2. Saldana Bay, South Africa. E. L. Layard, Esq. [P.]. 



Larus marinus, Linn. 



Larius marinu?, Thien. Fortpflanz. ges. Vog. tab. Ixxxviii. fig. 1, a-d 

 (1845-54); Baedeker, Eier Eur. Voy. tab. 62. fig. 1 (1855-63); 

 Hewitson, Eggs of Brit. Birds, ii. p. 501, pi. cxli. fig. i (1856) : 

 Dresser, Biras Eur. viii. p. 427 (1872) ; Baird, Brewer $ Ridgiv. 

 Water Birds N. Am. ii. jp. 225 (1884); Seebohm, Brit. Jtird*,m. 

 p. 323, pi. 52 (1885) ; id. Eggs of Brit. Birds, p. Ill, pi. 35. figs. 1, 

 2 (1890) ; Saunders, Cat. Birds B. M. xxv. p. 241 (1896) ; Sharpe, 

 lland-L i. p. 141 (1899). 



p2 



