PTEROGLOSSUS HUMBOLDTI, Fagi Humboldt’s Aragari. SpeciFic CHARACTER. Mas.—Pter. rostro majore ; mandibula superiore flavescenti-aurantiacd, culmine, lined basali cengente, maculaque ad singulam serraturam nigris ; mandibula inferiore nigra, ad basin - : ; A lavescenti-aurantiaco cencta. Male——Head, neck, throat and chest black; back, wings and tail olive-green; upper tail- coverts crimson ; primaries blackish brown ; under surface yellow, tinged with green on the flanks ; thighs chestnut ; upper mandible yellowish orange, the culmen, tip, a line down the sides near the base, and a narrow irregular mark above each serrature black ; under mandible black, bounded at the base with orange-yellow ; orbits, in front of the eye greenish blue, above and behind purer blue, beneath lilac, between which and the purer blue is a triangular mark of scarlet; irides dark carmine; legs and feet dark green. Total length, 16 inches ; d7//, 4; wing, 5; tarl, OF; tarsz, 1%. Female.—Sides of the face, ear-coverts, throat and chest chestnut; in all other respects similar to the male. Pteroglossus Humboldti, Wagl. Syst. Av., Pteroglossus, sp. 4.—Gould, in Proc. of Zool. Soc., Part II. p. 157.—Gould, Mon. of Ramph., pl. 22.—Ib. Sturm’s Edit., pl. .—Gray and Mitch. Gen. of Birds, vol. ii. p. 404, Pteroglossus, sp. 11.—Bonap. Consp. Gen. Av., p. 94, .S5e Pteroglossus, sp. 12. Tuis species, although known to us for nearly thirty years, having been first discovered TDG Wes Pes of Brazil, by Spix and Martius, previous to 1824, is still very rare in collections. us Banc country is the extensive and almost unexplored forests of the Upper Amazon and the Rio Madeira; it was in ee country that M. Natterer obtained his specimens, and it is to him that I am indebted for the colouring of the soft parts, he having kindly communicated them to me during his sojourn in London, when on his return from the Brazils to Vienna ; Mr. Wallace, who procured spe = informs me that, like the Curl-crested Aracari (Peeroglossus Beauharnaisi), it is very local, and that, as is also of this family, a river often forms the boundary of its habitat; a feature | both in Van Diemen’s Land and on , and they may therefore be depended on. cimens on the southern bank of the Amazon above the Rio Madeira, the case with some other members which I frequently observed to occur with respect to Australian birds, the continent of Australia. This fine species is very nearly sides of the bill; but the much larger size of th readily distinguish it from that species. The Plate represents the two sexes of the natural size. allied to P. inseriptus, and exhibits a similar style of markings on the e bird and the entire black colouring of the under mandible