rd, R. Azare,
stos ambicuus,
§ prasinus and
group; unless
mphus sulcatus,
an; and if the

in apy other.

27, added the
aldti. Subse.
yf Pteroglossus
‘ythrorhynchus,
ie R. carinatus
be a represen-
ified with any
nen which had

ot unfrequent

imus of Cuvier

inded upon a

ut did not live

from the true

roglossus nig?

n the Messrs.

‘roup, named

Oo
5

PNR ODF CEE I_OnN, Il

M. Boissoneau has added to the list Pteroglossus albiwitta ; and

M. d’Orbigny Pteroglossus c@ruleocinctus.

The Messrs. Sturm, in their German translation of the first edition of this work, have published two

others, Pteroglossus atrogularis, and Pt. Wied.

The following are the species which I have had the pleasure of making known as additional members

of the family ;—

Ramphastos brevicarinatus. Pteroglossus Marie.

Inca. | Andigena laminirostris.
|

citreolamus. | ———— hypoglaucus:
|

ose ulans. Ss CCU Anis:

culminatus. Selenidera Nattereri.

Pteroglossus pluricinctus. Aulacoram phus Derbianus.

peecilosternus. castaneorhynchus.
castanotis. = hematopypius:
erythropygius. _____—. ceruleogularis.

The characters and figure of the R. citreopygius of my former edition were taken from a specimen at
that time in the possession of Mr. Swainson, but which, with the remainder of his collection, is now in the
Fitzwilliam Museum at Cambridge. Upon again examinjng it, and with greater care than upon the former
occasion, I find that it is made up of the head of Ramphastos vitellinus and the body of R. erythrorhynchus ;

consequently that name must be expunged from the list of the species of this family.

Having thus traced the discovery of the various members of this important group from the earliest
period down to the present time, I now proceed to speak of their affinities, the countries they inhabit, and
the extent of their range; as well as to give all the information I have been able to obtain respecting their

habits and economy, duly acknowledging the sources whence it has been derived.
e 5

In some parts of their structure the Toucans much resemble the Hornbills; like them they are
distinguished by the great development of the beak, by the scantiness of the plumage of the body, and by
the rich colouring of the denuded parts of the skin; both are impatient of cold, and both seem especially
adapted for a tropical or subtropical climate ; both are said to incubate in the holes of trees, and they
are, moreover, very much alike in their general habits and actions; even to the positions they assume

while roosting, when both sit with the tail turned upward over the back. In the structure of their feet,