SYSTEMATISCHE INHOUDSOPGAVE. IX 



BLZ. 



3. Cygnus olor (Gmelin) 118 



Subfamilie ANSERINAE 120 



Genus anser Brisson 121 



1 . Anser hyperboreus Pallas 122 



2. Anser anser (Linnaeus) 125 



3. Anser brackyrkynckus Bzillon 129 



4. Anser fabalis (Latham) 131 



5. Anser ery thr opus (Linnaeus) 134 



6. Anser albifrons (Scopoli) 136 



Genus branta Scopoli 139 



1. Branta ritficollis (Pallas) 140 



2. Branta leucopsis (Bechstein) 142 



3. Branta bernicla (Linnaeus) 144 



4. Branta canadensis (Linnaeus) 147 



Subfamilie ANATINAE 149 



Genus tadorna Fleming 150 



1 . Tadorna tadorna (Linnaeus) . 151 



Genus casarca Bonaparte . , 154 



1. Casarca casarca (Linnaeus). 155 



Genus anas Linnaeus 157 



1 . Anas boschas Linnaeus 158 



2. Anas strepera Linnaeus 162 



3. Anas crecca Linnaeus . 165 



4. Anas formosa Georgi 168 



5. Anas querquedula Linnaeus 170 



6. Anas discors Linnaeus 173 



7. Anas acuta Linnaeus 175 



Genus mareca Stephens , 178 



1. Mareca penelope (Linnaeus) 179 



Genus spatula Boie 182 



1. Spatula clypeata (Linnaeus) 183 



Subfamilie FULIGULINAE 186 



Genus netta Kaup 187 



1 . Netta rufina (Pallas) 188 



Genus nyroca Fleming 191 



1. Nyroca f erina (Linnaeus) 192 



2. Nyroca nyroca (Güldenstadt) 195 



3. Nyroca f uligula (Linnaeus) 198 



4. Nyroca marila (Linnaeus) 201 



Genus glaucionetta Stejneger 204 



