INTROD UCTION.

septima inter se fere coequalibus: eeVISuIet ait
P eq 1S; cauda, paululum brevis, et minus gradata quam in genere Pieroglosso

nominato.

Bill comparatively short, broad and flattened on the culmen; furrowed on the sides, and with the base of the

beyond the line of the eye:

> mandible ey 1 a fete :
under mandible extending obliquely 1 3 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 i ‘ . ; Pl. XLII.
43. —___—_____Derbianus_ . : : : : : BE OXaouie
a castaneorhynchus . : ; : : RE Xasye
45 hematopygius : : : : : PIE xanve
46. —__________ cerruleocinctus : Pl. XLVI.
4 prasinus : ; : : : : Pl. XLVII.
48. ——______ Wagleri : ; : : : : P]. XLVIII.
49, —__________ albivitta : : : : : Pl. XLIX.
il. atrogularis. 3 : : REL:

ol. ———____— ceruleogularis : : : : : PU

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, RampHometus for the Andigena nigrirostris; next,
Rampnoxantuus for the Aulacoramphus prasinus, A. albwitta, &c.; and Pireertvorus for Selenidera piperivora,

Pteroglossus viridis, Andigena Bailloni, Pteroglossus inscriptus, &c.

As regards Rampuome us, 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.

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