140 



C. aygiius. Two examples moasure 4-4 by 2-0o ; 4-4:^ by J-8 

 respectively. 



1. Fort Rae, Great Slave Lake 



(F. Clark: Henshmv Coll.). 

 1. Labrador (Tristram Coll.). 



Salvin-Godmau Coll. 

 Crowley Bequest. 



Cygnus olor, Gm. 



Cygiiiis olor, T/iien. Fortpflanz. </es. To<j. tab. Lxxvii. fig. 1 ( 184-> -ji) : 

 Dresser, Birds Fur. vi. p. 419 (1880); Seebohm, Brit. Biril<, iii. 

 p. 476, pi. 57 (1885); Tacz. Fauiie Qrn. Siber. Orient, p. 1114 

 (189-3); Sahadori, Cat. Birds B. M. xxvii. p. 35 (1895); Seebohm, 

 Eqqs of Brit. Birds, p. 28, pi. 7. tig. 2 (1896): Sharpe, Hand-I. i. 

 p." 207 (1899). 



Olor maiisuetus, Baedeker, Eier Eur. Viig. tab. 63. fig. 1 (1855-63). 



Olor immutabilis, Baedeker, torn. cit. tab. 63. fig. '2. 



Cygnus imuiutabilis, Dresser, torn. cit. p. 429 (1880). 



The eggs of the Mute Swan are coarsely granulated and of 

 a greyish-green colour. They measure from 4-:j to 4"5s in length, 

 and from '2-Sb to 3-0;^ in breadth. 



Europe, 2ud July. 



Europe. 



Europe, 14th May, 



Russia [E. Middendorff). 



Russica. 



Laid in confiuenieut (Cambridge). 



Laid in continemeut (Alton, Hants). 



Salvin-(iodman Coll. 

 Seebolim Coll. 

 Seebohm Coll. 

 Seebohm Coll. 

 Seebohm Coll 

 Salviu-Godman Coll. 

 Crowley Bequest. 



Cygnus melanocoryphus (MoJ.). 



Cygnus nigricoUis, Thien. Fortpflanz. </cs. J'off. tab. Ixxvi. tiir. ■^ (1845- 

 54); ,SW. F.Z.S. 1869, p. 629 ;* /rf. ^*i- Sah. Fns, 18^0. p. 504: 

 Diamford, Ibis, 1878, p. 400; Gibso,,, Ibis, 1880, p. .33; .SV/. ^i' Huds. 

 Art/ent. Orn. ii. p. 124 (1889); James, jS'eiv List Chilia)i Birds, 

 p. 9 (1892) ; Holland, Ibis, 1892, p. 206. 



Cygnus melaneorvphus, Salvadori, Cat. Birds B. M. xxvii. p. 39 (1895) ; 

 Sharps, Hund-l. i. p. 207 (1899) ; Xehrk. Kat. Eiersamml. p. 242 

 (1899j ; ro7i Iheriny, Rei: Mies. Paulista, iv. p. 278 (1900). 



The eggs of the Black-necked Swan are fairly smooth in texture, 

 and they vary much in size and colour. Some examples are white : 

 others are pale buff or cream-coloured. Tliey measure from 3*57 

 to 4'45 in length, and from 2-4 to 2-S in breadth. 



3. Argentine Republic, Sept. 

 2. Central Chile, 4th Nov. 

 1. Central Chile (E. C. Feed). 



1. Straits of Magellan, Oct. {H. W. 



Hayes). 



2. Laid in confinement (Zool. Gardens, 



London) . 

 2. Laid in confinement (Zool. Gardens, 



London). 

 1. Laid in confinement (Zool. Gardens, 



London). 



A. II. Holland, Esq. [C. 

 Ijerkeley .James Coll. 

 Berkeley James Coll. 

 Berkeley James Coll. 



Salvin-Godman Coll. 



Zoological Society. 



Crowley Bequest. 



