, at

[rg

PEELE IESE T

Es

INTRODUCTION.

hem difficult. The Golden-green Aracari is assuredly a Pteroglossus;
d

render its separation from t

ithe Grooved-billed Aragari differs from it only in
nent of those peculiar characters of the bill which show themselves

the still greater simplicity of its colouring
2

and in the greater developr
to a certain extent in Per. prasinus.
If, in the preceding account of the species of Ramphastide, \ have rarely referred to the
form of the bill as aiding in their discrimination, it 1s not to be attributed to any undervaluing
Se : §
of the important help to be thence derived, but to the difficulty of adequately conveying i
PcG . : Sy
words a correct idea of those varying shades of difference which are appreciable only b
- ; ae v4
practised eye and on direct comparison. My principal object has been to facilitate th
ee a Ls. e
ascertaining of the species of this interesting family, and I trust that I may have, to a certai
é : : certain
extent, succeeded. In furtherance of i '
. ‘e of ew cult
the same view, I add the subjoined tabular attempt at

x a
a Synopses Specrerum.