THE 



WATER BIRDS 



OF 



NORTH AMERICA. 



Oedeb ANSERES. 



THE LAMELLIROSTRAL SWIMMERS. 



{Continued.) 



Genus NETTION, Kaup. 



Nettion, Kaup, Entwick. 1829, 95, 196 (type, Anas crccca, Linn. ). 



Querquedula, Bonap. Comp. List, 1838, et AucT. var. (not of Stephens, 1824, and subsequent 

 authors). 



Char. Bill shorter than the head, narrow, depressed (except at base), the edges parallel ; tarsus 

 shorter than the bill or middle toe ; nape with a small mane-like tuft ; rectrices more or less 

 acuminate, the middle pair longest. 



This genus is very readily distinguished from Querquedula by the very different form of the bill, 







r:^^^^^^^^&i^m^.^^^ 



iV. carolinensis. 



which is more like that of Dafila, but much smaller, being much more depressed terminally, and pro- 

 portionally deeper through the base than in Querquedula ; while the lower edge or maxillary tomium 

 is either gently convex throughout (as in the southern species), or straight anteriorly and decid- 



VOL. II. — 1 



