408 MALACONOTUS POLIOCEPHALUS 
Laniarius catharoxanthus, Butler, Ibis, 1908, p. 226, 1909, p. 81 Bahr el 
Ghazal. 
Malaconotus poliocephalus catharoxanthus, Zedlitz, J. f. O. 1910, p. 801 
Tacazze River, N. Abyssinia. 
Adult. Sides and upper half of the head and the hinder half of the neck 
grey, with a patch of white from the eye to the nostril; back, wings and tail 
yellowish green; upper tail-coverts with yellowish terminal margins; tail 
with pale yellow ends to the feathers, very narrow on the centre ones and 
rather broader towards the outer ones; wing with pale yellow ends to most 
of the feathers ; end portion of the pale outer webs of some of the primaries 
yellow ; under wing-coverts, inner margins and tips of quills pale yellow, 
remainder of under side of quills blackish; under parts uniform sulphur 
yellow or with an obsolete shade of rufous near the crop. Iris orange or 
yellow ; bill black; feet grey. Total length 11-5 inches, culmen 1.3, wing 4:9, 
tail 4-9, tarsus 1:5. Gambia (Moloney). 
M. p. catharoxanthus. Only distinguishable by its slightly paler under 
parts, which show no traces of the rufous shading on the crop and breast. 
Size about the same, wing 5:0, tail 4:7. Hiressa, 19. 6. 02 (Degen). 
The West African Grey-headed Bush-Shrike is found 
throughout the West African sub-region from Senegal to 
northern Angola, and eastwards to the Niam Niam country 
and the region of Tanganyika. 
The type obtained by Delbriick was brought from Senegal, 
whence Le Vaillant and Swainson also received it. Sir A 
Moloney gave me a specimen from the Gambia, and there 
is one in the British Museum from the Casamanse River. 
It occurs in Liberia, the Gold Coast Colony, Togoland and 
Camaroon, and also in Angola, where Ansorge obtained an 
example on January 30, 1909, at Malange and Anchieta at 
Caconda, both undoubtedly this species, and not M. montetrz. 
Away from the coastlands it occurs in northern Nigeria, whence 
there is in the museum an example from Ilorin collected by 
Churchill Bryant, and two from between the Benue and 
Lake Chad, collected by Alexander. Further east it was 
obtained by Bohndorff at Semio in the Niam Niam country and 
at 6,000 ft. on Mount Elgon, by F. J. Jackson, north-west 
