410 



MESSRS. SCLATER AND SALVIN ON 



[Apr. 4, 



Querquedula discors, 

 Dafila acuta, 

 Mareca americana. 

 Spatula clypeatu, 

 Aix sponsa, 

 Fuliyula marila, 



affinis, 



coUuris, 



Fuligula americana, 



vaUsneria, 



Clausula (/laucion, 



albeola, 



(Edemia perspicillata, 

 Erismatura ruhida, 

 Mergus cucuUatus. 



Deducting these 23, there remain 39 in the purely Neotropical list, 

 which may be divided as follows. 



In the first place, the genera Chenalopex, Dendrocygna, Sarcidi- 

 ornis, and Cairina are essentially tropicopolitan. We may therefore 

 associate the birds of these genera together as an intertropical divi- 

 sion containing eight species, namely 



Chena lop ex ju bata, 

 Dendrocygna fulva, 

 ■ autumnalis, 

 discolor. 



Dendrocygna arborea, 



viduata, 



Sarcidiornis melanonota, 

 Cairina moschata. 



