210 
Mr. J. H. Gurney's Notes on 
other that I greatly doubt its being desirable or, indeed, 
permissible to refer them all to the same subfamily. In 
dealing with these groups I shall endeavour to allude to them 
in what appears to me to be the most natural order of ar¬ 
rangement, which, in the main, will be the same as that 
adopted by Mr. Sharpe. 
The genus Gypaetus, with which Mr. Sharpe commences 
his series of Aquilinse, forms so remarkable and peculiar a 
link between the Vultures of the Old World and the typical 
Eagles, that I am strongly of opinion that it ought to be con¬ 
sidered as forming of itself a distinct subfamily, and that it 
should not be included in that of the Aquilinae, amongst 
which it is comprised in Mr. Sharpe's volume. The account 
there, given of the two species of Gypaetus does not appear 
to require any comment, except to remark that in the sum¬ 
mary of the localities inhabited by G. barbatus, “Northern 
Africa " ought to be substituted for “ N.E. Africa," as the 
mountains of Algeria are the main African stronghold of 
the northern Laemmergeyer*. 
Mr. Sharpe very appositely arranges the genus Uroa'etus 
consecutively to that of Gypaetus; for of all the true Eagles, 
none so closely approaches the Lsemmergeyer as the Wedge¬ 
tailed Eagle of Australia. Erom Uroa'etus he proceeds, and in 
this case also by a very natural sequence, to consider the most 
typical of all the Eagles, those which form the genus Aquila. 
In treating of this genus Mr. Sharpe commences with A. 
verreauoci, a species remarkable not only for its very peculiar 
coloration, but also for its restricted geographical range; Mr. 
Sharpe defines this as “South Africa and North-east Africa;" 
but, speaking more precisely, it may be said to be limited to 
the mountainous districts of Abyssinia, and to similar loca¬ 
lities lying to the south of the Orange River; and, so far as I 
am aware, it has never been observed in any of the interve¬ 
ning countries, or in any other part of the African continent. 
Next in order to Aquila verreauoci, Mr. Sharpe arranges A. 
chrysaetus, including under that name all those slightly vary- 
* I take this opportunity of calling attention to an interesting article 
on this species in Lieut.-Ool. Prjevalsky’s notes on the birds of Mongolia, 
recently published in Rowley’s ‘Ornithological Miscellany,’ pt. 6, p. 137. 
