Family ANATIDiE. 



Subfamily FULIGULINJE or DIVING DUCKS, 

 EIDERS AND MERGANSERS. 



The birds included in the present subfamily are distinguished 

 from their allies by having a pendent lobe or membrane attached 

 to the hind toe, and the tarsus scutellated anteriorly. All the 

 species contained in this group habitually dive for their food, and 

 are marvellously adept under water. Sexes generally different in 

 colour. Moult similar to that of the Non-diving Ducks, single in 

 females, partially double in males. 



This subfamily is composed of about forty species, divisible 

 into some half-dozen genera. Principally Palasarctic, Nearctic, 

 and Neotropical, one Ethiopian and three Australian. Only 

 known in the torrid zone during winter or on passage. 



2 D 



