646 Messrs. Sclater and Mackworth-Praed on [Ibis, 



Centropus monaclius fischeri, 



Centropus fischeri Reichw. J. f. O. 1887, p. 57: Niakatschi, 

 N.E. Victoria Nyanza ; id. V. A, ii. p. 64. 



Centropus monachus apud Butlei', Ibis, 1905, p. 356, 

 1908, p. 245. 



[B. coll.] ] Jebel Ahmed Agha May, 1 Lake No Feb., 



1 i^bu Kika May, U.N. ; 1 Bor " summer," Mon, 



[C. & L. coll.] 1 Jebel Ahmed Agha Jan., 1 Tonga Feb., 



2 White Nile lat. 12° N. Jan., 1 White Nile lat. 9^° N. 

 long. 31" E. Feb. U.N. 



[Chr. coll.] 1 Tembura Apl., 1 Meridi Jan. Ber. 



We bave followed Clande Grant's revision of the races of 

 tbis species (Ibis, 1915, p. 421) and consider Centropus 

 heuglini Neum. Verh.V. Intern. Ornitii. Kongr. 1910, 1911, 

 p. 504, pi. i., from the Bahr el Ghazal, to be identical with 

 this race. 



For some reason the birds collected by Messrs. Chapman 

 and Lynes are quite noticeably darker than either the 

 Christy or Butlei' specimens, though collected at the same 

 time of year, and. in some cases in the same localities. 

 The stomach of one of these specimens is stated to have 

 contained a large Reed-Warbler, probably one shot by 

 Capt. Lynes half an hour before, and this is said to be a not 

 uncommon trick of these birds. 



Centropus senegalensis senegalensis. 



Cuculus senegalensis Linn. Syst. Nat. 12th ed. 1766, 

 p. 169 : Senegal. 



Centropus senegalensis (Linn.) ; Reichw. V. A. ii, p. 58. 



Centropus monachus nee Kiipp. ; Butler, Ibis, 1909, p. 87. 



[B. coll.] 1 east of Rumbek Jan. B.G. 



[C. & L. coll.] 1 Mouth of Zeraf river Feb. U.N. 



[Chr. coll.] 3 Meridi Jan., 1 Yambio Mch. B.G. 



This species has also been reviewed by Claude Grant 

 (Ibis, 1915, p. 423), and we agree with his revision from the 

 present material at our disposal. In the J. f. O. 1915, 



