584 
Di J. V. MADARÁSZ 
in Sudan having faited to take notes on it, but Count Königsegg obtained 
the above male and female examples, which confirm the occurence of the 
Senegal Lark-heeled Cuckoo in Eastern Soudan. 
Centropus superciliosus, Hempr. & Ehrb. 1 
Centropus superciliosus, Hempr. & Ehre., Symb. Phys. fol. r. (1828); Shelley, Cat. 
B. Br. Mus. XIX. p. 363 (1891); Ch. Rothsch. & Wall. Ibis, 1902. p. 24; Ogilv.-Grant, 
Ibis, 1902. p. 428; Reichw., Vög. Afr., II. p. 65 (1902 — 1903); Butler, Ibis, 1905. p. 357. 
2 ? . Abu-Hashim, Dinder, 7—9. II 1911. 
? • El-Sems, Dinder, 8. I. 1912 (Count Königsegg). 
The White-evebrowed Lark-heeled Cuckoo was frequent in the dense 
forest part along the Blue-Nile and Dinder. 
Ordo: SCANSORES. 
Subord. CAPITONES. 
Fam. CAPITONIDAE. 
Lybius tridactylus (Gm.) 
Loxia tridactyla, Gmel., Syst. Nat. I. p. 866 (1788). 
Melcinobucco abyssinicus (Lath.) Shelley, Cat. B. Br. Mus. XIX. p. 22 (1891). 
Lybius tridactylus (Gm.) Reichw., Vög. Aír. II. p. 124 (1902 — 1903). 
Lybius abyssinicus (Lath.) Butler, Ibis, 1908. p. 246. 
cT . Choramla, 18. II. 1912 (Count Königsegg). 
This single specimen obtained by Count Königsegg differs from 
those originating from Abessinia in having the white edges of the wing- 
coverts very broad moreover the tertials and scapulars are also broadhv 
edged with whithe. This bird, it may be, belongs to a separate subspecies 
if the Sudanese birds are all similar coloured. Further investigations have 
to establish this question. 
1 Typical specimens from North-East Africa, especially Sudan and Abessinia con- 
spicouosly differ in having the ground colour of the whole underside pure white without 
any shade, whilst the specimens inhabiting East- and Southern-Africa are on the same part 
washed with a reddish tinge. In the series of the Hung. Nat. Museum there are neither in 
Northern — nor in Southern birds intermediate individuals. I suppose the mentioned 
characters are constant, therefore, and because the southern birds with a reddish shade on 
the underpart were not separated by the ornithologists I propose for this subspecies 
the name Centropus meridionalis. 
