CLASSIFIED INDEX. 



173 



AN ATI DA? (DUCKS). 



The only family. Characters of the order. 



Anas boscas (A. boschas), Wild Duck, III. 77 



Fuligula ferina (Anas ferina), Pochard, II. 57 



Mareca penelope (Anas penelope), WIgeon, II. 129 



Mergus albellus, Smew, I. 81 



(Edemia nigra (Oidemia nigra, Anas nigra), Scoter, II. 5 



Qiwrquedula crecca (Anas crecca), Teal, III. 25 



Somateria mollissima (Anas mollissima), Eider Duck, III. 45 



Spatula clypeata (Anas clypeata). Shoveller, II. 29 ^ 



Tadoma cornuta (Anas tadorna, T. vulpanser), SHIELDRAKE, II. 113 J 



