354 
23. 
WIGEON. 
DESCRIPTION: 
24. 
POCHARD 
D 
DES€RIPTION. 
25. 
PINTAIL 
D. 
DescriPTi1ONn. 
pm UChr. 
Anas Penelope, Ind. Orn. ii. p. 860. 71.—-Ger. Ora. Ve te 585. 586.—Sepp. 
Fog. iii. tab. 109. 110. 
Common Wigcon, Gen, Syx. vi. p. §18.—Lin. Tranf. iv. p. 111. tab. xiii. f. 9. 
HE only reafon for mentioning this fpecies here, is to notice the 
windpipe, which at firft fight does not feem materially to differ 
from that of the Pintail; the bony orb is moft perfectly globular, and 
differs fomewhat in refpeét to the attachment at the fides, which may 
be noticed by comparifon of one figure with another, better than by 
words. 
Anas ferina, Ind. Ora. ii. p. 862. 77.—Ger. Orn. v. t. 583. 584. 
Pochard, Gen. Syx. vi. p. 523. 68.—Lin. Trav. iv. p. 116. pl. xiv. f. 5. 6. 
HE trachea or windpipe of this bird is like that of the Scaup, 
but two inches fhorter, and of nearly the fame diameter through- 
out, The drum-like labyrinth is more round on the upper fide, but 
croffed with a fmall bony partition, as in that bird. The bony box of 
which the other portion confifts, is fcarcely elevated on this fide, and 
on the other much lefs fo than in the Scaup; it likewife forms an 
obtufe angle with the reft of the trachea, but in the Scaup, it does not 
deviate from a continuation of a ftraight line, though forming a con- 
fiderable enlargement. 
Anas acuta, Ind. Orn, ii. p. 864. 81.—Ger. Ora. v.t. 581.—Sepp. Vog. t: 92. 93: 
Pintail, Gen. Sym ii. p. 526. 72.—Lia, Tranf. iv. p. vi10. pl. xiii. f. 6. 
THE trachea of the male of this bird ends in a bony arch, and at- 
tached to it a nearly round bony bladder, about the fize of the 
end of the thumb; the upper part is about even with that of the bony 
arch, but the bottom greatly below it; from one of thefe one of the 
cy tons arifes to pafs into the lungs, and from the other the fecond. 
An 
