CONTENTS 
Mallard, Anas hoschas Linne 3 
Greenland ^Mallard, Anas hoschas conboschas Brehm 43 
Hawaiian Duck, Anas wyvilliana Sclater 44 
Latsan Teal, Anas laysanensis Rothschild 50 
Oustalet’s Gray Duck, Anas oustaleti Salvadori 53 
Mexican Duck, Anas diazi Ridgway 55 
New Mexican Duck or Huber’s Duck, Anas diazi novimexicana Huber 56 
Florida Dusky Duck, Anas fulvigula Ridgway 60 
Black Duck, Ajias rubripes Brewster 68 
Red-legged Black Duck, Alias rnbripes rubripes Brewster 88 
Green-legged Black Dnck, Anas rubripes tristis Brewster 88 
Indian Spot-bill, Anas pcecilorhyncha Forster ’ 90 
Anas pcecilorhyncha pcecilorhyncha Forster 96 
Anas pcecilorhyncha haringtoni (Oates) 96 
Eastern Spot-billed Duck or Gray Duck, Anas zonorhyncha Swinhoe 97 
Philippine Mallard, Anas luzoniea Fraser 101 
Australian Duck, Anas superciliosa Gmelin 103 
Anas superciliosa superciliosa Gmelin 112 
Anas superciliosa rogersi Mathews 112 
Anas superciliosa percna Riley 113 
Anas superciliosa pelewensis Hartlaub and Finsch 113 
African Yellow-billed Duck, Anas undulata Dubois 114 
African Black Duck, Anas sparsa Eyton 120 
Anas sparsa sparsa Eyton 126 
Anas sparsa leucostigma Riippell 126 
Meller’s Duck, Anas melleri Sclater 127 
Bronze-winged Duck, Anas specularis King 129 
Crested Duck, Anas cristata Gmelin 132 
Anas cristata cristata Gmelin 136 
Anas cristata alticola Menegaux 137 
Gadwall, Anas strepera Linne 138 
