ANSER. GOOSE. 



Generic Character. 



Rostrum capita a?qualis> sub- 

 conicum, rectum, apice ro- 

 tundato, marginibus la- 

 minato-dentatis ; mandi- 

 bula superiore curvata, 

 apice unguiculata, infe- 

 riore plana. 



Nares ad basin rostri sitae. 



Collum mediocre. 



Alee simplices. 



Pedes in equilibrio corporis 

 insertse, tetradactyli ; di- 

 giti anteriores toti pal- 

 mati, pollex liber; tarsi 

 elongati. 



ANSER. Briss., Cuv. 

 ANAS. Linn., Grael., Lath. 



Beak as long as the head, 

 rather conic, straight, the 

 tip rounded, the margins 

 laminato-dentated; the up- 

 per mandible curved, its 

 tip hooked, the lower flat. 



Nostrils placed near the base 

 of the beak. 



Neck rather short. 



Wings simple. 



Legs inserted in the equili- 

 brium of the body, four- 

 toed ; the anterior toes 

 united by a membrane, the 

 hinder one free; the tarsi 

 elongated. 



vjEESE are distinguished from the birds of the 

 former genus by the absence of the carneous ap- 

 pendage at the base of the beak; in having the beak 



