Male with the bill nearly as long as the head, greyish-yellow, the upper mandible with a soft tumid substance at the base, extending upon the forehead, and deeply divided into two narrow rounded lobes, its whole surface marked with divergent oblique lines; tail much rounded, of sixteen narrow feathers; the upper part of the head bluish-black, with the central part white; the hair-like feathers on the upper part and sides of the neck of a delicate pale green; sides of the head, throat, and neck white; fore neck at its lower part cream-coloured; the rest of the lower surface brownish-black, as are the upper tail-coverts, and the central part of the rump; the rest of the back, scapulars, smaller wing-coverts, and inner curved secondary quills white, the scapulars tinged with yellow; secondary coverts and outer secondaries brownish-black; primaries and tail-coverts greyish-brown. Female with the bill shorter, pale greyish-green, its tumid basal part much less and narrower; head and neck all round light brownish-red, with small lines of brownish-black; lower part of neck all round, the whole upper surface, the sides and lower tail-coverts light brownish-red, with transverse brownish-black markings; secondary quills and coverts greyish-brown, tipped with white; primaries brownish-black; tail-feathers greyish-brown; breast and abdomen greyish-brown, obscurely mottled. _Male_, 25, 42. _Female_, 24, 39. Breeds in Maine, on the Bay of Fundy, in Labrador, Newfoundland, as far northward as travellers have proceeded. Common in winter from Nova Scotia to Massachusetts; rarely seen in New York. Eider Duck, Anas mollissima, Wils. Amer. Orn. v. viii. p. 122. Fuligula mollissima, Bonap. Syn. p. 389. Somateria mollissima, Eider, Swains. &. Rich. F. Bor. Amer. v. ii. p. 448. Eider Duck, Nutt. Man. v. ii. p. 406. Eider Duck, Fuligula mollissima, Aud. Orn. Biog. v. iii. p. 344; v. v. p. 611. ****** Bill much shorter than the head, higher than broad at the base, narrowed toward the end. 407. 12. Fuligula Clangula, Linn. Golden-eye Duck. Plate CCCCIII. Male in summer. Plate CCCXLII. Male and Female in winter.