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Show 1887.] THE F A U N A O F C O R E A . 591 davidi, we have thought it advisable to refer them to that bird, especially as they come from a region where the C. davidi is likely to be found. W e believe, however, that as matters stand we should have been perfectly justified in describing them as belonging to a new and undescribed species, considering the incomplete and, what is worse, erroneous description which appears to have been given of C. davidi, for we repeat the two specimens from Possiette Bay have nothing whatever to do with C. coscoroba. The opinion expressed by Taczanowski (Bull. Soc. Zool. de France, 1882, p. 44), that C. davidi may be identical with C. sibilus, Pall. (Zoogr. Rosso-As. ii. p. 215), appears to be erroneous, for the latter 6pecies was described with a frontal knob and with black lores, and has been, with good reason, identified with C. olor. The Plate we give shows well the difference in the shape of the bill between our two Swans and an adult C. bewicki. 38. EuNETTA FALCATA (Pall.). Eunetta falcata, David et Oust. Ois. Chine, p. 504 (1877). Querquedula fale at a, Sclat. P. Z. S. 1880, p. 521. a. 3 • Possiette Bay, October 1879. A young bird, just beginning to assume the beautiful plumage of the adult male. 39. Aix GALERICULATA (Linn.). Aix galericulata, David et Oust. Ois. Chine, p. 501 (1877); Sclat. P. Z.S. 1880, p. 513. a. 2 • Olga Bay, September 1879. An adult bird, interesting for the locality and the time of year. 40. COSMONETTA HISTRIONICA (Linn.). a. 2- Olga Bay, September 1879. An adult bird, with a whitish patch below the eye extending to the base of the bill. This species is not mentioned by David and Oustalet in their work on the Birds of China. 41. GSDEMIA DEGLANDI, Bp. Oidemia deglandi, Bp. Rev. crit. Orn. Eur. Degl. p. 108 (1850); Stejn. Bull. U.S. Nat. Mus. no. 29, p. 174 (1885). Oidemia velvetina, Cassin, Pr. Acad. Nat. Sc. Philad. v. p. 126 (Oct. 1850). Melanetta velvetina, Baird, Birds N. Amer. p. 805 (1858). CSdemia americana, Swinh. (nee Sw.), Ibis, 1863, p. 435; P. Z. S. 1871, p. 419 (Yangtsze). CEdemia velvetina, Swinh. Ibis, 1875, p. 457 (Yangtsze); Sclat. P. Z.S. 1880, p. 520. Oidemia fusca, David et Oust. Ois. Chine, p. 504 (1877, nee Linn.). a. 3 adult. Possiette Bay, October 1879. b, c. 3 juv. Possiette Bay, October 1879. Bonaparte, and nearly contemporaneously Cassin, were perfectly 39* |