PALMIPEDES. 425 



minates in nearly similar inflations, forming on the left a partially 

 membranous capsule, supported by a frame and ramifications of bone. 



An. ferina, L.; Ji. nifa, Gm.; Millouin commiin, Enl. 803; 

 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. ru/ma, L.; Mill. Jmppe, 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 tuft; 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. 



Jin. marila, L., Enl. 1002; Brit. Zool. 2; Wils. VIII, Ixix, 3; 

 Naum. .59, f. 90; the female, AH.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 

 tail; 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, Gra.; A. leiicophtalmos, Bechst. ; the female, A. 

 africana, Gm.; Le Petit Millouin, 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.(l) 

 The Ducks of the second division, (2) whose thumb is not border- 

 ed with a membrane, have a more slender head, narrower feet, 



(1) Addof species foreign to Europe: .in. spinosa, Enl. 967,968; An. Stetleri, 

 Pall. Spic., VI, pi. v; An. lahradora, Wils. VII, Ixix, (S-y An. valisneria, Ib.LXX, 

 5; An. rubida, Ih. LXXI, 5, 6, of which, on account of its pointed tail, M. Ch. 

 Bonap. makes his genus OxruiiA. 



(2) It is to this second division that M. Ch. Bonap. particularly applies the 

 name of Anas. 



Vol. L 3 D 



