1862.] MR. J. H. GURNEY ON AQUILA DESMURSII. 145 
It is not easy to point out the distinction of these species in words; 
but there cannot be a doubt about them when they are compared 
together. 
{ may here observe that Delphinus eutropia (Gray, Proc. Zool. 
Soc. 1849, 1; Zool. Erebus & Terror, t. 34 ined.), which, in the 
‘ Catalogue of Cetacea’ in the British Museum, I have placed in the 
first section of Tursia, with D. tursio and the species above named, 
should be formed into a section of itself, characterized by having a 
very broad muzzle shelving on the sides, and the skull shelving down 
over the orbits, and thirty-four or thirty-five slender teeth on each 
side of each jaw. This section may be called Evrropia. 
3. Notice or A WinGuEss Brirp, or Mono, anv A Raven FOUND 
IN THE IsLtAnD oF Hawai By Mr. W. H. Pease. By Dr. 
J. KE, Gray, F.R.S., erc. 
In a note lately received from Mr. W. H. Pease, dated Honolulu, 
Noy. 20, 1861, he observes, ‘I noticed in a late number of the 
‘Annals of Natural History’ a description of a species of bird living 
im our islands (which was figured many years since in Dixon’s 
‘ Voyage’), by Mr. Gould; he refers it to the genus ‘ Moho.’ 
** Please inform him that there is a wingless bird of small size 
living in the island of Hawaii, which the natives call ‘Moho,’ which 
is now nearly extinct, having been killed off by the wild cats and 
dogs within late years; I have seen but a single specimen. ‘There 
is also living there a species of Raven,” 
4, Some Remarks on Aquita DesmursiI (J. VERREAUX). 
By J. H. Gurney, M.P., F.Z.S.* 
M. Jules Verreaux, who first recognized this Eagle as a distinct 
species, communicated his description of it to Dr. Hartlaub, by whom 
the species was made known to ornithologists in his admirable work 
on the Ornithology of West Africa. 
My present object is to put on record some information as to this 
interesting bird, with which M. Jules Verreaux has been so good as 
to supply me, and also to give some indications of the changes of 
plumage to which this species appears liable, and which I have had 
the opportunity of examining in several examples which now form 
part of the collection of the Norwich Museum. 
It may, however, be well to premise a few general remarks with 
reference to the geographical distribution of this Eagle, and to some 
of the peculiarities by which it is distinguished. 
Aquila desmursii has hitherto only been found in Tropieal Africa, 
north of the Equator,—specimens having been obtained at Bissao 
* This paper will also be published in the Socicty’s ‘Transactions,’ accompa- 
nied by a plate. : 
Proc. Zoou. Soc.—1862, No. X. 
