88 
Mr. J. H. Gurney^s Notes on 
habits are known_, are partially reptilivorous_, and some of 
them almost entirely so. 
The only species of the genus Eutriorchis, E. astuVy is a 
native of Madagascar_, and was described at p. 73 and figured 
on pi. xiii. of the ^ Proceedings ^ of the Zoological Society 
for 1875^ by Mr. Sharpe, who became acquainted with this 
very curious bird subsequently to the publication of the first 
volume of his Catalogue. Mr. Sharpe, in his description of 
this species, has sufficiently pointed out the affinities of the 
genus Eutriorchis ; and I can add nothing to his observations, 
except to remark that E. astur has subsequently been also 
figured by MM. Milne-Edwards and Grandidier on pi. 9b of 
the second volume of their ^ Histoire Naturelle des Oiseaux 
de Madagascar.^ 
The affinities of the genus Dryotriorckis have been equally 
well defined at pp. 90 and 91 of ^ The Ibis'’ for 1874 by 
Captain Shelley, to whose kindness I am indebted for permis¬ 
sion to illustrate this paper by a figure of his fine specimen of 
D. spectabilis, there described. The genus DryotriorcMs con¬ 
tains but this single species, which is one of extreme rarity 
in collections; and the present figure of it (Plate II.) will, 
I think, be valuable both on that account and also because 
the only representation of it hitherto published is contained 
in the volume for 1863 of the ^ Nederlandish Tijdschrift/ a 
work which is but very little accessible to British ornitho¬ 
logists. The figure there given is moreover, in my opinion, 
not very satisfactory, as it fails to convey the idea of the 
thoroughly Circaetine aspect of this curious bird. As indi¬ 
cated by Mr. Sharpe in the footnote to p. 279 of his volume, 
the general appearance of this species bears a considerable 
resemblance to that of some species of the genus Spilornis; 
and I may observe that the narrow white edgings to the least 
wing-coverts near the carpal joint are, in this respect, es¬ 
pecially noteworthy. 
The genus Spilornis may, I think, be safely said to be 
a purely oriental one; for though Le Vaillant figures and de¬ 
scribes one species of it (which he calls le Bacha ”) as having 
been four times obtained by him in the mountains of Great 
