GEN. 251-259 OF KEY. 95 



486. DENDROCYGNA FULVA (GM.) BURM. 

 Tree Duck. 



487. DENDROCYGNA AUTUMNALIS (L.) EYTON. 



Autumnal Tree Duck. 



488. ANAS BOSCHAS L. 



Mallard. 



489. ANAS OBSCURA GM. 



Dusky Duck. 



490. DAFILA ACUTA (L.) JENYNS. 



Pintail; Sprig-tail. 



491. CHAULELASMUS STREPERUS (L.) GRAY. 



Gadwall ; Gray Duck. 



[492.] MARECA PENELOPE (L.) BP. 

 European Widg-eon. 



493? MARECA AMERICANA (GM.) STEPH. 

 American l>Vidgreon; Daldpate. 



[494.] QUERQUEDULA CRECCA (L.) STEPH. 

 JEnglisli Teal. 



495. QUERQUEDULA CAROLINENSIS (GM.). 



Green-wing-ed Teal. 



496. QUERQUEDULA DISOORS (L.) STEPH. 



Teal. 



497. QUERQUEDULA CYANOPTERA (V.) CASS. 



Cinnamon Teal. 



498. SPATULA CLYPEATA (L.) BOIE. 



Shoveller. 



499. AIX SPONSA (L.) BOIE. 

 Summer Duck ; Wood Duck. 



