424 
+ ne iy 
yan” & 
" AVES. ; # 
White; a fawn-coloured spot on the cheek and side of the neck; 
breast, back, tail, and part of the wing black. Of all the European 
Ducks, this has the shortest bill. Its trachea, ossified near the 
root, has on one side five square membranous spaces resembling 
so many panes of glass, above which it is inflated into an os- 
seous capsule. 
An. histrionica, L.; Enl. 798; Wils. VIII, Ixxii, 4; Edw. 995. 
Naum. I, 'e. 52, f. 77s and the female, 4n. minuta, 799; Edw. 
197. (The Harlequin Duck.) Ash-coloured; the male fantasti- 
cally streaked with white; eyebrows and flanks red. Each of the 
preceding species is occasionally seen in France, but at very 
long intervals. 
Then comes the common species with a round or square tail. 
An. clangula, L.; Le Garrot, Enl. 802; the young, 4n. glau- 
cion, L.(1) Frisch, 181, 182; Naum. I, c. 55, f. 81, 82; Wils. 
*VIII, Ixvii, 6. (The Golden-eye.) White; head, back, and tail, 
black; a small spot before the eye and two bands on the wing, 
white; the bill blackish. The female is ash-coloured with a 
brown head. The middle of the trachea is considerably dilated, 
the two arches of the sac, however, preserving their flexibility. 
It becomes singularly widened near the bifurcation.(2) 
Somareria, Leach. 
The Eiders have a bill longer than that of the preceding sub- 
genus, and ascending more on the forehead where it is emarginated 
by an angle of feathers, but still narrower before than at base. 
After all these distinctions there remains the 
An. molissima; L’ Eider, Enl. 208, 209, the adults of both — 
sexes, Mus. Carls. 39; the three year old young male, Edw. 98; 
Wils. VIII, xci, 2, 3; Naum. 64, f. 79, 80. (The Eider Duck.) 
Whitish; calotte, belly and tail, black; the female grey, speckled 
with brown. Celebrated for furnishing u us with that valuable — 
article called eider down.(3) ' 
Furicuia, Leach, 
Whose beak is broad and flat, but presents no other peculiarity. 
Several species are found in France, in all of which the trachea ter- 
(1) Glaucton, the Greek name of a Duck, so called on account of the cage of: 
its eyes. 
(2) Add An. albeola, Enl. 948, the same as dn. bucephala, Catesb., 1, 95;—An. 
brachyptera, Voy. de Freycin. pl, xxxix. : 
(3) Add An. spectabilis, Sparm. Mus. Carls., Il, pl. xxxvi; Edw. 1545 ati. 40, ; 
f. 58, 59. | 
