INTRODUCTION. 
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septima inter se fere cosequalibus; cauda, paululum brevis, et minus gradata quam in genere Pteroglosso 
nominato. 
Bill comparatively short, broad and flattened on the culmen; furrowed on the sides, and with the base of the 
under mandible extending obliquely beyond the line of the eye; wings short and round, the fourth quill the 
longest, the fifth, sixth and seventh being nearly of equal length; tail comparatively short, and not so 
decidedly graduated as in the true Pteroglossi. 
This may be considered an Andean group, for it is among those lofty mountain ranges that nearly all 
the species are found. They are dispersed over all parts of the temperate regions, from Bolivia on the 
south to Mexico on the north. They possess characters common to each other; their plumage is nearly 
of a uniform green, and the sexes are precisely alike in colour. 
The species are— 
42. Aulacoramphus sulcatus 
43. 
-Dcrbianus 
44. 
-castaneorhynchus 
45. 
-heematopygius 
46. 
-cteruleocinctus 
47. 
-prasinus 
48. 
-Waffle ri 
49. -—— albivitta 
50. - atrogularis 
51. -ceeruleogularis 
PI. XLII. 
PI. XLIII. 
PI. XLIV. 
PI. XLV. 
PI. XLVI. 
PI. XLVII. 
PI. XLVIII 
PI. XLIX. 
PI. L. 
PI. LI. 
Since the above was in type, Prince Charles Lucien Bonaparte has sent me a portion of his remarks 
on the Birds brought by the late M. De Lattre from Nicaragua, in which I find in a note at page 84 he 
proposes a still further division of this family: first, Ramphomelus for the Andigena nigrirostris ; next, 
Ramphoxanthus for the Aulacoramphus prasinus, A. albivitta, &c.; and Piperivorus for Selenidera piperieora, 
Pteroglossus viridis, Andigena Bailloni , Pteroglossus inscriptus, &c. 
As regards Ramphomelus, I think any further subdivision of the Hill Toucans inadmissible : the bird 
upon which the Prince proposes to establish the genus has all the characters common to the other members 
of the section, with the exception of the black colouring of the beak, which surely must be regarded rather 
as a specific than as a generic distinction. 
