NICATOR CHLORIS 437 
wing-coverts and inner secondaries with bold pale yellow terminal spots ; 
the tail with less distinctly defined yellow ends to all but the four centre 
feathers; sides of head olive yellow, with a bright yellow ring round the 
eye, and a clear white mark in front of the eye, edged above with black ; 
a bright yellow spot at the base of the lower mandible, sometimes almost 
meeting its fellow on the other side; cheeks and under parts ashy white, 
with the flanks and thighs greenish yellow, the under tail-coverts, under- 
wing-coverts, and inner margins of the quills bright sulphur yellow. Iris 
brown ochre; bill greenish black; feet greenish blue grey. Total length 
9-75 inches, culmen 0:8, wing 4:0, tail 4:2, tarsus 1:10. Gunnal, 3, 16. 7. 09 
(Ansorge). 
Adult female. Is much smaller, but otherwise like the male. Wing 3-4, 
tail 3-9, tarsus 0°95. Gunnal (Ansorge). 
The White-throated Nicator ranges over western Africa 
from Senegambia to the Congo, and eastwards to Katanga 
and Uganda. The type described by Valenciennes came from 
Galam in Senegal. Reichenow has recently proposed to 
recognize examples from the Congo Forest, near the Semliki 
valley, as a district subspecies, because the yellow spot at the 
base of the lower mandibles is continued as a band right 
across the throat; but I find on examining the large series 
in the British Museum that the size and extent of yellow 
varies with individuals, and that the band is as complete in 
some of the West African specimens as in some of those from 
the Semliki. 
This bird was obtained by Biittikofer in Liberia, and by 
many collectors in the Gold Coast Colony, as well as in 
Cameroon and Gaboon, as far as the Congo. South of this 
river, Mechow met with it on the Kuango River, but it does 
not seem to reach Angola proper; Neave found it in Katanga. 
In the lakes region it has been procured by Jackson at 
Entebbe and Busoga, by the Ruwenzori Expedition in the 
Semliki valley and at Fort Portal, and by the Duke of 
Mecklenburg’s Central-African Expedition, in the forest north- 
west of Fort Beni, in Semliki. 
July, 1912, 29 
