20 
INTRODUCTION. 
feather-like ; wings rather lengthened and concave ; first and second primaries with the tips prolonged into a 
narrow spatulate form ; the sixth and seventh primaries equal, and the longest; feet scansorial. 
The members of this genus are more widely distributed over South and Central America than those 
of any other section of the family ; for although it is in Brazil, and particularly in the forests clothing the 
delta of the Amazon, that the greater numbers exist, some of the species are found as far south as Para¬ 
guay ; and one as far north as Mexico. The warmer forests, both on the eastern and western sides of the 
Andes, are equally tenanted by them. 
The species are :— 
1. Ramphastos Toco ........ PI. I. 
2. - carinatus PI. II. 
3. -brevicarinatus ...... PI. III. 
4. - Tocard . . . . . . . PI. IV. 
5. - ambiguus . . . . ■ . . PI. V. 
6. -- erythrorhynehus ...... PI. VI. 
7. -Inca ........ PI. VII. 
8. -Cuvieri.PI. VIII. 
9. -citreolsemus ...... Ph IX. 
10. -osculans . . • • • ■ • PI. X. 
11. --- culminatus ...... PI. XI. 
12. —- Ariel ........ PI* XII. 
13. -vitellinus ....... PI. XIII. 
14. -dicolorus . . . • • • • • PI* XIV. 
For the Aracaris, Illiger’s genus 
PTEROGLOSSUS, 
WITH THE FOLLOWING CHARACTERS 
Rostrum, amplum, tenue, cultratum, basi margine incrassato ; maxillse angulo frontali obtuso; tomia serrata; nares 
altiores et in maxillae basi positse; lingua mediocris, angusta, pennacea ; alee concavee, breviores, secundum 
