Leyden Museum as Angola ; but, according to Professor Bocage, if it occurs there it must be very 

 rare, and probably is only found in the districts north of the Quanza. M. Anchieta during his long 

 residence in Angola never met with the species. 



Bill yellowish white, brownish at the tips of the mandibles ; a brown line also runs along the 

 commissure for half its length from the tip. A low crest rises at the base of the culmen and 

 extends two thirds its length, with grooves on either side. Head, neck, upper part of breast, 

 back, wings, and flanks black with a slight greenish gloss. Tail black, with the exception of the 

 two lateral rectrices next to the outermost ones, which are pure white. Tarsus black. 

 Total length 18 inches, wing 9J, tail 10, bill 3J. 



Specimens described and figured are in my own collection. 









ir 





mm 



