160 
Mr. J. H. Gurney^s Notes on 
Benguela, and is in the possession of Captain Shelley^ to 
whose kindness I am indebted for the opportunity of com¬ 
paring it with the similar specimens from Nubia and Bissao 
above referred to. 
Du Bocage, at p. 34 of the first volume of his recent work 
on the Ornithology of Angola_, describes, under the head of 
Circa'etus cinereus, two females, one from Maconjo, the other 
from the Humhe, as having pas d^espace blanc a la base 
des plumes du dos et des regions inferieures hut I have not 
observed any notice of this peculiarity in the writings of any 
other ornithologist. 
I propose now to allude to some fuliginous specimens, 
which I have examined, with white bases to the feathers of 
the lower surface, and subsequently to the three just men¬ 
tioned, which do not exhibit this peculiarity. 
(No. 12.) This is a specimen from Natal in the Norwich 
Museum, which, in its general aspect, including the markings 
on the tail, agrees well with the description and figure of 
of RiippelTs Circa'etus fnnereus [vide ^Neue Wirhelthiere,^ 
p. 35, pi. 14) ] the three narrow pale transverse hands on the 
upper surface of the tail, however, are whitish brown rather 
than red-grey (^‘^roth-grauen^^), as described by Buppell. In 
this specimen these pale bars are lighter on the inner than 
on the outer web of all the rectrices, except the central pair, 
but the intervening and much broader dark spaces are equally 
deep-coloured on both webs. One pair of rectrices are evi¬ 
dently of more recent growth than the remainder, from which, 
however, they do not differ in markings, or, if allowance be 
made for some fading, in the coloration of the older feathers. 
The upper tail-coverts are narrowly tipped with white; and 
on most of the feathers composing them there is also a white 
spot on the outer web near the base, which latter is brown; 
on others there are two such spots, one on each side of the 
shaft; while in a few cases the feather has no white on it 
except at the tip. I may add that white tips to these fea¬ 
thers, and also white bases, are usual in the adults of the 
white-bellied race [C. pectoralis)^ but in only one such spe¬ 
cimen (No. 11) have I met with similar white spots on these 
