668 Messrs. Sclater and Mackwortli-Praed on [Ibis, 



Bacorvus abyssinicus Reichw. V. A. ii. j). 234 ; Butler, 

 Ibis, 1905, p. 353, 1908, p. 242. 

 [B. coll.] 1 Upper Nile Feb. 

 Generally distributed tbrougliont the Sudan (A. L. B.). 



Family Alcedtnid^. 

 Ceryle rudis rudis, 



Alcedo rudis Linn. Syst. Nat. 10th ed. 1758, p. 116: 

 Egypt. 



Ceryle rudis rudis Hnrtert, Vog. pal. Faun. p. 877. 

 Ceryle rudis Butler, Ibis, 1905, p. 354, 1908, p. 243, 1909, 

 p. 86. 



[B. coll.] 3 Khartoum May & Nov.; 1 Malakal May, 

 U.N. ; 1 MoAgalla, 2 Bor " summer," Mon. ; 1 Raffali 

 Feb. B.G. 

 [C. & L. coll.] 2 Hassania Island, Jan. W.N. 

 Widely distributed on all rivers in the Sudan (^A. L. B.). 



Ceryle maxima. 



Alcedo maxima Pallas, Spic. Zool. tasc. vi. 1769, p. 14 : 

 Cape of Good Hope. 



Ceryle maxima Reiclnv. V. A. ii. p. 299 : Butler, Ibis, 

 1905, p. 354, 1908, p. 243. 



[B. coll.] 1 Gallabat Apl. Kas. 



Apparently, from Mr. Butler's notes, a not uncommon 

 biid on the rivers of the Svidan, but we have only seen two 

 Sudanese examples besides the present one. 



Corythornis cristata. 



Alcedo cristata Yroeg, Cat. Adumb. 1764, no. 55 : Cape 

 of Good Hope. 



Corythornis cristata Claude Grant, Ibis, 1915, p. 263. 

 Corythornis cyannstigmu (Hiipp.) ; Butler, Ibis, 1905, 

 p. 354, 1908, p. 243, 1909, p. 86. 



[B. coll.] 1 Gallabat May, Kas. ; 1 Roseires Jan. Sen. ; 

 2 Mongalla "summer''; 1 Chak Chak Feb., 1 

 Wau Apl. B.G. 



