104 ZOOLOGICAT. RESEARCHES 



it. The whole upper surface is much darker than in any 

 specimen of the western form I have before me ^) , and 

 even darker than in the specimen from Mosambique. The 

 fi'out , crown , hind neck and mantle are black with an in- 

 tense greenish gloss , the feathers of the hinder part of the 

 mantle, all the upper wing-coverts and the secondaries 

 black and broadly margined with chocolate-brown , the 

 primaries entirely black, the lower back and upper tail- 

 coverts chocolate brown, unspotted, tail-feathers sooty brown, 

 much faded and the white tips nearly worn off, some young, 

 nearly half-grown tail-feathers black and conspicuously tip- 

 ped with pure white. Some of the scapulars , the lesser 

 wing-coverts and some of the greater , have one , some of 

 the lesser wing-coverts two , pure white , lanceolate or ar- 

 row-shaped spots on the shaft of the feather, while those 

 spots in the common plumage of H. senegalensis are more 

 numerous , also on the interscapulary feathers , and more 

 rounded , eye-shaped , and surrounded by black or glossy 

 green. The under wing-coverts are not as largely spotted 

 with white as in the common plumage. The entire chin, 

 throat and fore-neck are slaty gray, which color is 

 separated from the glossy green crown and hind neck by 

 a row of slaty gray feathers , which are broadly tipped 

 with white , forming a narrow but conspicuous line of white, 

 which runs from the hind angle of the eye down to the 

 sides of the chest. Some feathers of the throat are also 

 tipped with white. The feathers of the chest are black , 

 broadly banded across and tipped with white , and also are 

 those of the flanks, thighs and under tail-coverts. The 

 greatest peculiarity of this plumage however is, that the 

 entire breast and abdomen , even in the centre, is spotted 

 with black , each feather being white , with a black spot 

 on each web , forming together a tolerably broad , incom- 

 plete crossband. 



1) Three specimens from the Senegal and one from the Gold Coast, making 

 part of the Museum collection , and seven specimens from Liberia (Junk- and 

 Du Queah Kiver). 



JS"otes from the Ley den Museum, Vol. X. 



