390 PROCTorus nigricollis. 



p. 41; Schlegel, Mus. P.-Bas, Urinât., p. 40 (1867, part.); Layard, B. S. 

 Afr., p. 374 (1837); Anonym, Ibis, 1867, pp. 373-374; Droste, Journ. 

 f. Orn, 1868, p. 403; Newton, Ibis, 1868, pp. 263, 264; Smith, Ibis, 1868, 

 p. 457; Collett, Vid. Selsk. Forh. Christiania, 1868, p. 190; Bruhin, 

 Abh. zool.-bot. Gesell. Wien, 1868, p. 252; Hanf, Abh. zool.-bot. Gesell. 

 Wien, 1868, p. 966; Hedsun, Peterm. Geogr. Mitth., 1869, p. 408; Mar- 

 chand, Cat. Ois. Côte d'Or, p. 82 (1869); Borgo-beve, Vogel-Paun. Xord- 

 deutschl., p. 137 (1869,); Blanford, Geol. & Zool. Abyss., p. 440 (1870); 

 Marchand, Rev. & Mag. Zool., (2) XXII, 1870, pi. 12; (2) XXIII, 1871— 

 1872, p. 196; Taczanowski, Journ. f. Orn., 1870, p. 56; Homeyer, Journ. 

 f. Orn., 1870, p. 231; Elwes & Buckley, Ibis, 1870, p. 341; Finsch & 

 Hartlaub, Ornith. Ost-Afr., p. 813, nota (1870J; David, Nouv. Arch. 

 Mus. Paris, VII, 1871, Bull., p. 13; R. Gray, B. West Scotl., p. 409 

 (1871); Swinhoe, Proc. Zool. Soc. London, 1871, p. 415; Pelzeln, Verh. 

 z.-b. Gesell. Wien, 1871, p. 727; 1872, p. 562; Homeyer, Journ. f. Orn., 

 1872, p. 339; Fritsch, Journ. f. Orn., 1872, p. 378; Coues, Ibis, 1872, 

 p. 53; Taylor, Ibis, 1872, p. 233; Irby, Ibis, 1873, p. 98; Sachse, Journ. 

 f. Orn., 1875, p. 428; Rohweder, Vog. Schlesw.-Hollst., 1875, p. 22; 

 Krupek, Mommsen's Griech. Jahrb., III, 1875, p. 297; Przewalski, Mong. 

 i strana Tangut., II, Aves, pp. 161, 170 (1876); Jahresb. Deutschl., 

 .lourn. f. Orn., 1877, p. 342; 1878, p. 436; Blakiston & Pkyer, Ibis, 1878, 

 p. 211; Kronprinz Rudolf & Brehm, Journ. f. Orn., 1879, p. 129; Ho- 

 meyer & Brehm, Journ. f. Orn., 1879, p. 83; Jabresb. Deutschl., Journ. 

 f. Orn., 1880, p. 406; Blakiston & Pryer, Trans. As. Soc. Japan, VIII, 

 1880, p. 181; Kollibay, Ornith. Centralbl., 1880, p. 155; Marschall & 

 Pelzeln, Omis vindob., pp. 131, 179 (1882); Jah resb. Deutschl., Journ. 

 f. Orn., 1882, p. 109; 1883, p. 76; Codes, Key X. Amer. B., éd. 1884, 

 p. 796; Vian, Bull. Soc. Zool. France, 1887, p. 439; Koenig, Journ. f. 

 Orn., 1888, p. 297; Simroth, Arch. f. Xaturg., 1888, i, p. 197; Hartwig, 

 Omis, 1891, p. 184; Gatke, Vogelwarte Helgoland, p. 537 (1891), edit. 

 anglica, p. 587 (1895); Wustnei, Journ. f. Orn., 1900, p. 349. 



Lepechin 1780 (?), Falk 1786 (?part.), Georgi 1800, Pallas 1811, 

 Bronewsky 1823, Eiohwald 1824 (?), Eichwald 1830, 1831, Dwigubsky 

 1831, Nordmann 1834, Goebel 1838 (?), Nordmann 1840 (?), Brandt 

 1845, Tyzenhadz 1846, Kessler 1847, Czernay 1850, 1850, Taczanowski 

 1851, Brandt 1852, Kessler 1852, Plater 1852, Becker 1853, Czernay 

 1853, Moeschler 1853, Sewertzow 1855, Blakiston 1857 (?part.), Irby 

 1857 (? part.), Taratschkow 1857 (?), Carte 1858 (r part.), Artzibaschefp 

 1859, Taratschkow 1859 (?), Nordmann 1860, Wartik 1860, Anonym. 

 1860 (? part.), Apanasjew 1861, Kessler 1861, Schatilopp 1861, Seid- 

 i.itz 1861, Tyzenhauz 1862, Nordmann 1864, Sabanejew 1866, 1868, 1868, 

 Eversmann 1868, Buhse & Schweder 1870, Oldekop 1870, Schweder 



1870, Bogdanow 1871, Land 1871 (? part.), Palmén 1871, Sabanejew 



1871, Finsch 1872, Jakowlew 1872, Sewertzow 1873, Taczanowski 1873, 

 Goebel 1874, Sabanejew 1874, Schatii.ow 1874, Taczanowski 1874, 

 Karelin 1875, Schewelew 1875, Saweljf.w 1875, 1876, Taczanowski 

 1877, 1877,1877, Kessler 1878, Saweljew 1878, Bogdanow 1879, Menz- 



