55. THALAS810RNI3. 437 



Thalassiornis leuconotus, G. R. Gr. ^- Mitch. Gen. B. iii. p. 626, 

 pi. 169. f. 1 (1844) ; lichnb. Syn. Av., Natatores, t. 79. ff. 2328- 

 29(1850); id. Av. Sijst. Nat. p. viii, tab. viii. (1852); Peh. 

 Reise Novara, Viiy. p. 139 (1805) (Cape of Good Hope); Fi7isch 

 u. Hartl. Vd(j. O.-A/r. p. 810 (1870) ; Hartert, Eat. Voyekamml. 

 p. 234 (1891). 

 Clangula leuconotus, Smith, III. S. Afr., Zool., Aves, pi. 107 (1846). 

 Anas brevipennis, Licht. Mus. Berol., teste G. R. Gr. Gen. B., App. 



p. 28 (1849). 



Thalassiornis leuconota, Licht. Nomencl. Av. p. 103 (1854) ; Cah., v. 



d. Deck. Reise O.-Afr. p. 51 (18G9) ; Sundev. Meth. nat. Av. disp. 



Te?it. p. 150 (1872) ; Rchmv. J. f. O. 1887, p. 4G (Njansa) ; 



Matschie, J. f. O. 1887, p. 157 ; Rchiiw. J. f. O. 1889, p. 265 



(Quilimane) ; id. Mitth. Naturh. Mus. zu Hamb. x. p. 5 (^Quili- 



mane) (1893) ; id. T'off. Deutsch-Ost-Afr. p. 25 (1894). 



Thalassornis leuconota, Bp. Compt. Rend, xliii. p. 658, n. 156 



(1856); Hartl. J. f. O. i860, p. 174; id. Orn. Beitr. Faun. 



Maday. p. 83 (1861) ; Pollen, N. T. D. i. p. 328 (1863) ; Verr. in 



Vinson! s Toy. a Maday., App. 13, p. 4 (1865) ; Layard, Birds of 



S. Afr. p. 356 (1867) ; Grand. Rev. et May. de Zool. 1868, p. 6 



(Madagascar) ; G. R. Gr. Hand-list, iii. p. 90, n. 10717 (1871) ; 



Boc. Jorn. Acad. Sc. Lisb. 1872, p. 70 (Kio Coroca) ; Ayres, Ibis, 



1874, p. 105 (Transvaal); Boc. u. Gad. J. f. O. 1876, p. 294; 



Rchmv. J.f O. 1877, p. 11 (Loauiro) ; Hartl. Die Viiy. Maday. 



p. 366 (1877) ; Sclat. P. Z. S. 1880, pp. 529, 534 ; Fisch. u. Rch^uv. 



J.f. O. 1880, p. 139 (Zanzibar) ; Boc. Orn. Angola, p. 505 (1881) ; 



ButL, Feild., ^- Reid, Zooloy. 1882, p. 428 (Natal) ; Bohm, J.f 0. 



1882, p. 184 (Zanzibar) ; Mi/ne-Fdw. ^- Grandid. Ois. Maday. 



p. 735, pi. 275 .A. f. 2 (1882); Sharpe, Bayard's B. of S. Afr. 



p. 761 (1884); Biihm, J.f. O. 1885, p. 38 (Ugalla, C. Afr.); 



Fischer, J. f O. 1885, p. 115 ; Symoyids, Ibis, 1887, p. 336 



(Orange Free State) ; Salvad. Ann. Mus. Civ. Gen. (2) vi. p. 324 



(Shoa) (1888) ; Tristr. Cat. Coll. B. p. 46 (1889) ; Sibree, Ibis, 



1892, pp. 265, 271 ; Nicholls >^- Eylinyton, Sportsm, in S. Afr. 



p. 125 (note) (1893). 



Erismatura leuconota, Mont. P. Z. S. 1865, p. 89 (Benguela). 



Biziura leuconota, Schley. Mus. P.-B, Anseres, p. 8 (1866) ; Gieb. 



Thes. Orn. i. p. 467 (1872). 

 Clangula leuconota, Chapm. Trav. in S. Afr. ii. App. p. 423 (1868). 

 Anas leuconotus, Gieb. Thes. Orn. i. p. 355 (1872). 

 Erismatura (Thalassiornis) leuconota, Rchmv. Orn. Centralbl. 1S82, 



p. 4. 

 Anas sp., Bohm, J.f. 0. 1885, p. ol, 1887, p. 157 ( = ? leuconota). 



Adult male. Upper part of the head, nape, and throat black, 

 varied with jellow-ochreous ; a buflj'-white spot at the anterior 

 part of the cheeks just near the base of the bill, extending to below 

 the gape ; sides of the head ochreous yellow, with black roundish 

 spots ; sides and anterior part of the upper neck uniform bright 

 ochreous yellow ; back, scapulars, and wing-coverts with black and 

 rufous-ochreous bands ; rump white ; upper tail-coverts black, with 

 bull' bands ; underparts ochreous yellow, the jugulum, sides of the 

 breast, and flanks banded with black, the black bands broader on the 

 flanks ; centre of the breast uniform, unspotted ; abdomen and 

 under tail-covcrts dusky, the edges of the feathers buff; primaries 

 greyish brown, the secondaries spotted with rufous on the edges ; 



