PALMIPEDES. 425 
minates in nearly similar inflations, forming on the left a partially 
membranous capsule, supported bya frame and ramifications of bone. 
An. ferina, L.; A. rufa, Gm.; Millouin commun, Enl. 8033 
Naum. I, c. 58, f. 87, 88; Wils. VIII, xc, 6. (The Red-head.) 
Ash-coloured, finely striated with blackish; head and top of the 
neck red; lower part of the neck and the breast brown; the bill 
a light lead-colour. Sometimes breeds among the reeds in the 
ponds of France. Its trachea is of an equal diameter. 
An. rufina, L.3 Mill. huppé, Enl. 928; Naum. I, c. 32, f. 63, 
64. (The Pochard Duck.) Black; the back brown; some white 
on the wing and flank; the head red, the feathers on its summit 
turned up into a tufts red bill. From the borders of the Caspian 
sea, and occasionally driven by the winds as far as France. 
There are two successive inflations of its trachea, besides the 
capsule of the bifurcation: 
An. marila, L., Enl. 10023 Brit. Zool. 2; Wils. VIII, Ixix, 33 
Naum. 59, f. 90; the female, An. freenata, Mus. Carls. 38; Naum. 
59, f.90, B. (The Scaup Duck.) Ash-coloured, striated with 
black; head and neck black, changing to green; black rump and 
- stail; the belly and spots on the wing white; the bill lead- 
coloured; found in small flocks in France during the winter, but 
is from the remote parts of Siberia. Its trachea is very wide 
at the commencement, and then narrow. 
An. nyroca, Gm.; A. leucophtalmos, Bechst.; the female; /. 
africana, Gm.3; Le Petit Millowin, Enl. 1000; Naum. I, c. 39, f. 
89. Brown; head and neck red; a white spot on the wing; belly 
whitish; a brown collar on the bottom of the male’s neck. 
_ Breeds in the north of Germany, and is rarely seen in France. 
Its trachea is very much inflated about the middle. 
An. fuligula, L.; Le Morillon, Enl. 1001; Frisch, 171; Naum. 
I, c. 56, f. 83, 84; Wils. VIII, Ixvii, 5; the young, Enl. 1007; 
An. scandiaca, Frisch, VI, xxxvi, 1, 2. (The Tufted Duck.) 
Black; the feathers of the occiput lengthened out into a tuft; the 
belly and a spot on the wing white; bill lead-coloured. Found 
in France every winter, where it proceeds from the North.(1) 
The Ducks of the second division,(2) whose thumb is not border- 
ed with a membrane, have a more slender head, narrower feet, 
(1) Add of species foreign to Europe: .4n. spinosa, Enl. 967, 968;—An: Stellera, 
Pall. Spic., VI, pl. v;—An. labradora, Wils. VII, lxix, 6;—An. valisneria, Ib LXX, 
5;—An. rubida, tb. LXXI, 5, 6, of which, on account of its pointed: ‘tail M. Ch. 
Bonap. makes his genus Oxyura. 
(2) It is to this second division that M. Ch. Bonap. pardeiadly appiiea the 
name of Anas. 
Vout. IL.—3 D 
