503 
Ibises of the Genus Theristicus. 
of the genus Theristicus , the subject of which I propose to 
treat in this paper. 
As already stated, Graf von Berlepsch and M. Stolzmann, 
in their paper mentioned above, have treated of the differences 
between T. melanopis and T. caudatus , and of their geo¬ 
graphical distribution. They have shown that the first 
species inhabits the southern and western parts of South 
America, from Magellania and Patagonia to the western 
side of the Andes in Chile and Peru as far north as lea and 
Chorillos, while the other species inhabits the northern and 
eastern parts of South America from Cayenne and British 
Guiana westward to Venezuela and Colombia, and south¬ 
ward to Brazil, Paraguay, Uruguay, and the northern part 
of the Argentine Republic. 
To the two species already mentioned must be added a 
third, Theristicus branickii Berl. et Stolzm., peculiar to the 
highlands of Peru and Ecuador, which, so far as we know 
at present, extends from Pitumarca, near Tinta, in Peru, to 
Vallevicioso in Ecuador. 
Besides these, as already mentioned, Dr. Finsch has described 
quite recently a Theristicus columbianus , from a specimen 
contained in the Leyden Museum, received from the Parisian 
dealer Deyrolle, as coming from Colombia, but without 
any collector's name. Dr. Finsch observed that no species 
of the genus Theristicus was known from Colombia, 
previously to his publication; a statement not correct, as 
Berlepsch and Stolzmann in 1892 had already mentioned 
specimens of the genus Theristicus from Colombia as 
contained in the Berlepsch Museum, which had been identi¬ 
fied with T. caudatus. Graf von Berlepsch has very 
kindly sent me for inspection these specimens, one of which 
is from Antioquia, and also two from Venezuela, col¬ 
lected by Mr. G. K. Cherrie at a place named Altagracia. 
These specimens from Colombia and from Venezuela do 
not at all show the characters attributed by Dr. Finsch 
to his T. columbianus , viz., the wing-coverts and the hidden 
base of the secondaries grey, instead of white, as in T. cau¬ 
datus, to which species they certainly belong. Dr. Finsch, 
2 m 2 
