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INTRODUCTION.

The fifth section contains the Hill Toucans, forming my genus

ANDIGENA,
WITH THE FOLLOWING CHARACTERS :—

Rostrum turgidum, magnum, attamen minus quam in genere restricto Pteroglossus dicto. Ale et caude ut in genere

Aulacorampho nominato. Ptiluma elongatum, laxum, capillaceum.

Bill stout and swollen, but not so large as in the true Pteroglosst; wings and tail very similar to those of Aulaco-

ramphus ; general plumage long, loose, and hair-like.

It has been found that even the higher ranges of the Andes are not untenanted by the Toucans ;
Professor Jameson of Quito informs me that the 4. damincrostris even ascends the sides of Pichincha to an
elevation of from six to ten thousand feet. The members of this genus extend all along the Andes and the
Cordilleras, from the Caraccas to Bolivia, where Mr. Bridges found a species in the forests of Cocapata, in
the department of Cochabamba ; one species, however, the 4. Bailloni, appears never to quit the lowlands of
Brazil. These Hill Toucans have stout hard bills, are very thickly clothed, and have the under surface

generally of a uniform and delicate colour.

The species are—

 

37. Andigena laminirostris : ; : Pl. XXXVEE
a hypoglaucus : : F Pl. XXXVIII.
39. ———— nigrirostris . ; : ; : PI. XXxaS

A crenlatis : : : PI. XG:

41. ———— Bailloni : ; : Pl. XEE

nm . . . . . . . s S
The sixth and last section comprises a series of birds remarkable for some of the species having the

sides of their bills deeply grooved ; they form my genus
AULACORAMPHUS,
WITH THE FOLLOWING CHARACTERS :—

Rostru natica: Wane
um, comparative breve, latum, ad culmen depressum ; apud latera sulcatum ; mandibulé inferiore ad basin

oblique ultra oculi lin 2 : oer : : R ee Sua A
q @ neam tendente; ale breves et rotundate, remige quarta longissimé, quinta, sexta, et