53 [Vol. xxxi. 



Anas penelope x Nyroca fuligula. A female, bred in 

 Holland. 



Dafila acuta x Anas strepera. Two males and a 

 female. 



Dafila acuta x Anas penelope. Two males and a 

 female shot wild in Holland : a male bred by Sir Edward 

 Grey. 



Dafila acuta x Anas crecca. A male, shot wild in 

 Holland. 



Dafila spinicauda x Anas strepera. A female. 



Dafila spinicauda x Pcecilonetta bahamensis. A 

 male. 



Aix sponsa x Tadorna tadorna. Two males. 



Aix sponsa x Anas platyrhyncha. Two males. 



Aix sponsa x Anas penelope. A male and female. 



Aix sponsa x Dafila acuta. A male. 



Aix sponsa x Nyroca ferina. Three males and a 

 female. 



Aix sponsa x Nyroca nyroca. A male. 



Aix sponsa x Nyroca fuligula. A male and female. 



Aix sponsa x Nyroca clangula. A male. 



Nyroca peposaca x Sarcidiornis melanonotus. A 

 male and female. 



Nyroca peposaca x Aix sponsa. Two males and two 

 females. 



Nyroca peposaca x Anas platyrhyncha. Two males. 



Nyroca peposaca x Domestic Duck (Call Duck). A 

 male and female. 



Nyroca peposaca X N. rufina. A male and two 

 females. 



