INTRODUCTION. 
21 
staturam, quam in genere Rampliasto dicto ; primariis quartet, quints et sexta cosequalibus et longissimis ; 
cauda gradata; pedes scansorii; digiti extend internis longiores ; acropodia scutulata. 
Bill large, light, serrated on the edges ; nostrils above situated in the base of the bill; tongue long, narrow and 
feather-like ; wings shorter in proportion than in the genus Rmnphastos ; concave ; fourth, fifth and sixth pri¬ 
maries equal, and the longest; tail graduated; feet scansorial; outer toes longer than the inner. 
Although very generally dispersed over South America, the Araparis have a less extended range than 
the true Toucans. I have not seen any species from the countries southward of the latitude of Rio de 
Janeiro, and no species have been found to the northward of Guatemala. The great countries of 
Venezuela, Guiana, the forests of the Amazon generally, and Northern Brazil are the portions of the 
Continent in which the species are found in the greatest abundance. 
They are— 
15. Pteroglossus Arapari 
16. - Wiedi . 
17. -pluricinctus . 
18. -poecilosternus 
19. - castanotis 
20. - torquatus 
21. -erythropygius 
22. -- Humboldti 
23. - inscriptus 
24. -viridis 
PI. XVI. 
PL XVII. 
PI. XVIII. 
PI. XIX. 
PI. XX. 
PI. XXI. 
PI. XXII. 
PI. XXIII. 
PI. XXIV. 
Of these ten species seven are normal, and the remaining three somewhat aberrant; in fact the two 
lettered Araparis, P. Humboldti and P. inscriptus, might with propriety be separated into a distinct genus, 
and the P. viridis made the type of another. 
