.BX. CEREOrsiS. 145 



Aix sponsa, Baedeker, Eier Eur. Voq. tab. 68. tig. 4 (1855-63) ; Coues, 

 Birds N.-West, p. 571 (1874); Scl. P. Z. S. 1880, p. 513 ; Baird, 

 Brewer Sf Ridgw. Water Birds N. Am. ii. p. 11 (1884). 



^Ex sponsa, Salvador!, Cat. Birds B. M. xxvii. p. 72 (1895). 



Lampronessa sponsa, Sharpe, Hand-l. i. p. 209 (1899). 



Of the eggs of the Summer-Duck or Wood-Duck, some are ellip- 

 tical in shape, others are slightly compressed at the smaller end. 

 They are very smooth, glossy, and of a cream-colour. They measure 

 from 1'9 to 2-2 in length, and from 1'45 to 1'6 in breadth. 



7. North America. Gould Coll. 



1 . North America. Old Collection. 



1. Lake Superior (Prof. Ayassiz: Crowley Bequest. 



Tristram Coll.}. 



2. Quebec (Gale). Seebohm Coll. 



2. Concord, Massachusetts (Henshaw Salvin-Godman Coll. 



Coll.). 



-3. Laid in confinement (Zool. Gar- Salvin-Godman Coll. 

 dens, London). 



Genus .SIX, Boie. 

 JEx galericulata (Linn.). 



Anas galericulata, Thien. Fortpjlanz. yes. Viig. tab. Ixxx. tig. 9 (1845- 



54). 

 Aix galericulata, Baedeker, Eier Eur. Vog. tab. 68. tig. 3 (1855-63) ; Scl. 



P. Z. S. 1880, p. 513 ; Tacz, Faune Orn. Siber. Orient, p. 1127 



(1893). 

 ^Ex galericulata, Salvadori, Cat. Birds B. M. xxvii. p. 76 (1895) ; 



Sharpe, Hand-l. i. p. 209 (1899) ; Nehrk. Kat. Eiersamml. p. 242 



(1899). 



The eggs of the Mandarin Duck are quite similar to' those of 

 Lamproncssa sponsa. Five examples measure respectively : 2-15 bv 

 1-55 ; 2-05 by 1-52 ; 2-13 by 1-45 ; 2-1 by 1-5 ; 2'12 by 1-51. 



1. Laid in confinement (Zool. Gardens, Zoological Society. 



London ). 



2. Laid in confinement (Zool. Gardens, Salvin-Godman Coll. 



London). 

 2. Laid in confinement. Crowley Bequest. 



Sub-Family CEREOPSIN^E. 



Genus CEREOPSIS, Lath. 

 Cereopsis novae-hollandiae, Lath. 



Anser cereopsis, Thien. Fortpflanz. yes. Voy. tab. Ixxvii. fig. 3 (1845-54). 



Cereop-sis novae-hollandia3, Gould, Handb. Birds Austr. ii. p. 350 (1865) ; 

 Scl. P. Z. S. 1880, p. 497 ; North, Nests # Eyas Austr. Birds, p. 334 

 (1887) ; Salcadori, Cat. Birds B. M. xxvii. p. 79 (1895.) ; Sharpe, 

 Hand-l. i. p. 210 (1899); Nehrk. Kat. Eiersamml. p. 242 (1899 ; 

 Campbell, Nests $ Eyys Austr. Birds, ii. p. 1021 (1901). 

 TOl. II. L 



