BERNICLA. BERXICLE. 



Generic Character. 



Rostrum capite brevier, sub- 

 conicum, rectum, gracile, 

 apice rotundato, niargo 

 laininato-dentato ; mandi- 

 bula superiore curvata, 

 apice unguiculata, infe- 

 riore plana. 



ad basin rostri sitee. 



Collum mediocre. 



Alec plerumque simplices. 



Pedes in equilibrio corporis 

 positae, tetradactyli ; di- 

 gili anteriores palmati, 

 pdlcx simplex ; tarsi sub- 

 elongati. 



Beak shorter than the head, 

 subconic, straight, slender, 

 the tip rounded, the mar- 

 gin laminato-dentate ; the 

 upper mandible curved, 

 the tip hooked, the lower 

 flat. 



Nostrils placed at the base 

 of the beak. 



Xcck mediocral. 



JVmgs generally simple. 



Legs placed in the equili- 

 brium of the body, four- 

 toed ; the anterior toes 

 webbed, the hinder one 

 simple; the tarsi slightly 

 elongated. 



BERXICLA. Briss. 

 ANAS. Linn. 

 ANSER. 



1 HESE are distinguished from the Geese by their 

 shorter and slenderer beak, the edges of which are 



