221 



BIZIURA. LOBEDUCK. 



Generic Character. 



Rostrum basi tumidum, va- 

 lidum, latum, apice in- 

 curvo; mandibula inferiore 

 palea seu membrana de- 

 pendente instructs. 



Nares ovales, sub-basales. 

 Cauda rotundata, rectricibus 

 acutis. 



BIZIURA. Leach MSS. 



Beak tumid at the base, 

 strong, broad, its tip in- 

 curved ; the lower man- 

 dible furnished with a 

 wattle or dependent mem- 

 brane. 



Nostrils oval, sub-basal. 



Tall rounded, its feathers 

 acute. 



I HIS singular genus of Ducks is characterized by 

 having a large excrescence or membranous wattle 

 hanging downwards from the lower mandible of its 

 beak, and by having the beak itself of a robust form 

 and very broad. It is much allied to the Scoters, and 

 also to the Eiders, but will not agree with either. 



