45 



[ANATlN.t.. 



GENUS XIV. ANAS. 



Ext. Char. Pedes digitis posterioribus simplicibus, mediis longiss'imis. Tibia parte 

 tertia inferiore denudata. Rostrum lateribus parallelibus. Nares ovales, prope culmen ad basin 

 locatae. Lingua obtusa, ad apicem appendiculata, lateraliter una ordine setarum longarum et 

 flexilum instructs, supra has setas ad latera sex spinis instructs, et in medio supra duplici ordine 

 setarum brevium. 



Anat. Char. Trachea tubula equali. Larynx inferior una bulba ossea latere et antice 

 extendente in maribus. 



Ext. Char. Feet with the posterior toes simple, the middle one longest. Thighs with a 

 third part naked. Dill with the sides parallel. Nostrils oval, placed near the culmen at the base. 

 Tongue blunt, at tbe point with an appendage, the sides furnished with one rank of long and flexible 

 bristles, above these bristles in the middle of the sides furnished with six spines, and in the middle 

 above with a double rank of short bristles. 



Anat. Char. Trachea with the tube of equal size. Inferior Larynx with one osseous 

 bulb on the side and extending anteriorly. 



Anas. Linn. 



BoSCBAS. Swainson. 



Type. Anas Bosckas. 



