THE 



WATER BIRDS 



OF 



NORTH AMERICA. 



Order ANSERES. 



THE LAMELLIROSTRAL SWIMMERS. 

 (Continued.) 



Genus NETTION, Kaup. 



NMion, Kaup, Entwiek. 1829, 95, 196 (type, Anas erecca, Linn.). 



Qucrqwdula, Bonap. Comp. List, 1838, et Auct. van (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 hill or middle toe ; nape with a small mane-like tuft ; rectriees more or less 

 acuminate, the middle pair longest. 



This genus is very readily distinguished from Qm r</ii<,]n!ii l.y the very different form of the bill, 



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 Querqiudvla ; 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 



