SOMATERIA. EIDER. 



Generic Character. 



Rostrum basi tumidum, ele- 

 vatum, in fronte recur- 

 rente, et pennarum pro- 

 minenti& triquetrft diviso; 

 ad apicem angustum, ob- 

 tusum. 



Nares parvae in medio rostri 

 positee. 



Beak swollen at its base, ele- 

 vated, extending up the 

 forehead, and divided by 

 a triangular projection of 

 feathers; towards the tip 

 narrow and blunt. 



Nostrils small, placed in the 

 middle of the beak. 



SOMATERIA. Leach, Fleming. 

 ANSER. Brisson. 



J. HE construction of the beak of this genus is some- 

 what singular : this part is rather large in proportion, 

 with its base much elevated and thrown backwards 

 on the forehead, where it is divided by a longitudinal 

 and triangular projection of feathers : its sides are also 

 each furnished with a similar projection, which reaches 

 as far as the nostrils, which are small : the tip of the 

 beak is straight, semicylindric, and obtuse ; the nail 

 at the extremity rather large. 



