LAETTS. 211 



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

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

 and there are the usual pale purple underlj'ing spots and blotches. 

 Examples measure from 2 to 2-'d in length, and from 1"45 to 1'6 

 in breadth. 



1. Australia. Saunders Coll. 



2. Australia. . Gould Ooll. 



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



2. Gippsland, Victoria. F. A.PhilbrickjEsq., 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); Balkr, Birds 

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

 XXV. p. 238 (1896) ; Shar])e, Hand-l. i. p. 141 (1899). 



The eggs of the Eed-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 1'4.5, 2-15 

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



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



Larus hartlaubi (Br'uch). 



(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-l. i. 

 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. 

 lu 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*16 

 by 1-41. 



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



Larus marinus, Linn. 



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

 (1845-64) ; Baedeker, Eier Eur. Viig. tab. 62. fig. 1 (1856-63) ; 

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

 Dresser, Biras Eur. viii. p. 427 (1872) ; Baird, Brewer Sr Bidgw. 

 Wafer Birds N. Am. ii. p. 225 (1884); Seebohm, Brit. Birds, iii. 

 p. 323, pi. 52 (1885) ; id. Eggs of Brit. Birds, p. Ill, pi. 36. figs. 1, 

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

 Eandrl. i. p. 141 (1899). 



p 2 



