CYGNUS. 139' 



Cygnus bewicki, Yarr. 



Cygnus minor, Thien. Fortpflanz. yes. Voy. tab. Ixxvi. fig. 1 (1845-54) ; 



Baedeker, Eier Eur. Yog. tab. 31. fig. 1 (1855-63); Seebohm, Ibis,. 



1879, p. 158. 

 Cygnus bewickii, Hewitson, Eggs of Brit. Birds, ii. p. 396, pi. cxi. fig. i 



(1856). 

 Cvgnus bewicki, Seebohm $ Harvie-Brown, Ibis, 1876, p. 438 ; Dresser, 



Birds Enr. vi. p. 441 (1880) ; Seebohm, Brit. Birds, iii. p. 484, 



pi. 58 (1885) ; Salvation, Cat. Birds B. M. xxvii. p. 29 (1895) ; 



Seelohm, Eyas of Brit. Birds, p. 29, pi. 8. fig. 2 (1896) ; Sharpe r 



Hand-l. i. p. 207 (1899). 



The eggs of Bewick's Swan are inseparable from those of 

 C. cygnu$, but are somewhat smaller. Eour specimens measure- 

 from 3'8 to 4'25 in length, and from 2-53 t 2-65 in breadth. 



1. Petchora R., Lat. 68 2 N., June Seebohm Coll. 

 (H. Seebohm $ J. A. Harvie- 

 Brown). 



1 . Yenesei Valley, Lat. 09 N., 2nd July Seebohm Coll. 

 (H. Seebohm). 



1. Yenesei Valley, Lat. 69^ N., 7th Seebohm Coll. 

 July (H. S.}. 



1 . Yenesei Valley, Lat, 70, 18th June Seebohm Coll. 

 (H. S.). 



Cygnus columbianus (Orel). 



Cygnus americanus, Coues,JJirds N.-West. p. 545 (1874). 



Olor colombianus, Baird, Brewer $ Ridgtv. Water Birds N. Am. L 



p. 425 (1884) ; MacFarlane, Proc. U.S. Nat. Mus. xiv. p. 425 (1891). 



Cysmus r.olumbianus, Salvadori, Cat. Birds B. M. xxvii. p. 32 (1895) ; 



' Sharp?, Hand-l. i. p. 207 (1899) ; Nehrk. Kat. Eiersamml. p. 241 



(1899). 



The eggs of the Whistling Swan do not appear to be separable 

 from those of C. cygnus. Four specimens measure respectively i 

 3-9 by 2-55 : 4-11 by 2-55 ; 4-2 by 2-63 ; 3-95 by 2-63. 



1. North America (Smiths. Inst.). Salvin-Godman Coll. 



1. Anderson River, Arctic America, Salvin-Godman Coll. 



July (It. Macfarlane: Henshaiv 



Coll.}. 

 1. Cambridge Bay, Arctic America Voy. II. M.S. 'Enterprise.' 



(Capt. Collinsori). 

 1. Arctic Coast, east of Anderson River Crowley Bequest. 



(Smiths. Inst.). 



Cygnus buccinator, Richards. 



Olor buccinator, Baird, Brewer $ Ridgiv. Water Birds N. Am. i. p. 430' 

 (1884) ; MacFarlane, Proc. U.S. Nat. Mus. xiv. p. 425 (1891). 



Cygnus buccinator, Salvadori, Cat. Birds B. M. xxvii. p. 33 (1895) ; 

 Sharpe, Hand-l. i. p. 207 (1899); Nehrk.- Kat. Eiersamml. p. 241 

 (1899). 



The eggs of the Trumpeter Swan are inseparable from those 



