INTRODUCTION. 21

staturam, quam in gener icto; primarii A cuints
aturam, qua genere Ramphasto dicto ; primaris quarta, quinta et sexta cozqualibus et longissimis ;
cauda gradata ; pedes scansorii ; digiti externi internis longiores ; acropodia scutulata

Bill large, light, serrated on the edoes - nnctp; 7e Si i i
ge, light, edges ; nostrils above situated in the base of the bill: tongue long, narrow and
feather-like ; wings shorter in pr ti i renus ; i 1
; 1g) n proportion than in the genus Ramphastos ; 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 Aracaris have a legs 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 abund

 

ance.

They are—
15. Pteroglossus Aracari ; : i . : PI XY.
16. —— Wiedi_. : ; : , ; : Pl. XVI.
17. ———— pluricinctus . : , : ; Pl. XVII.
18. ———-—— peccilosternus ; ; : Pl. XVIII.
19, ——____ castanotis ‘ : ; ; 5 ‘ Pl. XIX.
20. —————_ torquatus : : d : BE Xexe
21. ————— erythropygius : ; ; : : Bix
22. ————— Humboldti . : : j : : Pl. XXII.
23. —————— inscriptus : : : : Pl. XXIII.
24, —____ viridis. : . ; : . : Pl. XXIV.

Of these ten species seven are normal, and the remaining three somewhat aberrant; in fact the two
lettered Aracaris, P. Humboldti and P. inscriptus, might with propriety be separated into a distinct genus,

and the P. viridis made the type of another.

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