536 



Mr. W. R. 



Ogilvie Grant on a 



the Dorthern birds form a distinct and well-marked species, 

 which I propose to call Numida reichenowi. All the three 

 specimens examined differ constantly from the southern 

 form in having the helmet rising vertically from the skull. 

 In N. coronata the helmet slopes obliquely backwards. These 

 differences are faithfully shown in the accompanying figures, 

 which I have sketched from the typical specimens. 



Fi-. 1, 



Head of Ntimida reichenoioi. 



The only other differences are that in N. reichenowi the 

 wattles at the gape are entirely crimson-red, while in N. 

 coronata they are pale blue, tipped with red ; and that in the 

 former subspecies the black feathers up the middle of the 

 back of the neck have decomposed webs, and are not mere 

 hair-like shafts with a few lateral vanes. 



