166 
ANATINiE. QUERQUEDULA. 
immigration from the continent. The species is extensively 
dispersed in North America, as well as in Europe. 
Wild Duck. 
Anas Boschas, Linn. Syst. Nat. i. 205. — Anas Boschas, 
Lath. Ind. Ornith. ii. 850. — Anas Boschas, Temm. Man. 
d’Ornith. ii. 835. — Anas Boschas, Mallard Duck, MacGilli- 
vray, Brit. Birds, v. 
GENUS CXXYI. QUERQUEDULA. TEAL. 
The Teals differ from the Ducks in being of a somewhat j 
more slender form, with the neck generally longer, the bill 
much narrower, and the scapulars and inner secondaries 
more elongated and pointed. The bill is nearly as long as 1 
the head, considerably higher than broad at the base, gra- 
dually depressed toward the end, but scarcely widened, it : 
being comparatively slender, with the margins nearly paral- I 
lei; upper mandible with the frontal angles short and pointed, 
the dorsal line sloping to beyond the nostrils, then nearly 
straight to the unguis, which is small, obovato-oblong, de- j 
curved at the end, the ridge broad and concave at the base, 
gradually narrowed, the sides convex unless at the base, the 
edges nearly straight, the extremities of the numerous 
lamellae rounded or moderately pointed, and projecting more 
or less. Mouth rather narrow ; digestive organs as in the 
character of the family. Trachea a little enlarged at the 
lower part of the neck ; the inferior larynx with an enlarge- 
ment formed by several of the lower rings united, and on ( 
the left side a rounded or ovate thin bony expansion of ra- 
ther large size. Nostrils rather small, oblong. Eyes smalL 1 
Legs very short ; tarsus compressed, with small anterior 
scutella ; hind toe very small, with a very narrow membrane ; 
outer toe considerably shorter than the third ; interdigital 
membranes emarginate ; claws small, slightly arched, com- 
pressed, rather acute. Feathers of the head and upper neck 
short ; scapulars elongated and acuminate ; wings rather 
long, narrow, pointed, of twenty-five quills ; the first and 
second longest ; inner secondaries elongated and tapering ; 
tail small, short, or moderate, tapering, of sixteen stiffish, 
acuminate feathers. 
