PTEROGLOSSUS NATTERERII 
Natterer’s Ara^ari. 
Specific CnARiiCTEE,. 
Mas. Pter. rostra ruhro, ad apicem flavescenti-albido, lined culminali, macula ad latera utriusque 
mandibulce, maciddque supra singidari serraturam nigris, serraiuris albis: capite supra, guld, 
guttureque nigris; fascia nuchali pallide flavd ; dorso aliisque saturate olivaceis ; rectricum 
sex intermediarum apicibus castaneis ; lateribus favis, in castaneum ad femora transeuntibus ; 
caudce tectricibus inferioribus coccineis. 
Foein. Capite sujna, guld, guttureque pallide castaneis ; regione paroticd pallide favescenti-viridi; 
dorso pallidiore. 
Male. Bill red, with the exception of a line of black on the culmen, a spot on the side of each 
mandible, and a small irregular mark of the same colour above each of the serratures, 
which are white; the point yellowish white; top of the head, occiput, throat, and breast 
black; ear-coverts pale yellow; a lunar-shaped band of the same colour separates the black 
of the occiput from the back, which, with the wings, is of a dark olive; tips of the six 
middle tail-feathers chestnut; flanks yellow, passing into chestnut on the thighs; under 
tail-coverts scarlet. 
Female. All those parts light chestnut which in the male are black; the green on the back less 
deep, and the ear-coverts pale yellowish green ; in other respects the colouring is the same. 
Total length, \3i inches; bill, 2i; wings, 5i; tail, 5; tarsi, Tf. 
Pteroglossus Nattererii , Could, Proceedings of Zool. Soc., Part III. 
Although I have at all times endeavoured to avoid the imposing of a specific title on a new species which 
did not convey some idea connected with its form or colouring, I have been induced to deviate from this rule 
in the present instance from the earnest desire I feel to pay a just tribute of respect to a most enthusiastic 
and able naturalist, through whose personal exertions in the Brazilian forests for the period of eighteen years 
so vast a collection has been transmitted to the capital of that country by the munificence of whose Govern¬ 
ment he was enabled to prosecute his researches; and I would here beg to offer my acknowledgements to 
M. Schreibers, the highly talented director of the Imperial Museum of Vienna, for the liberal manner in which 
he permitted me to examine the birds of this group contained in the collection under his care, and to add 
to my monograph a repi’esentation of this rare species. 
I am not aware of the precise locality in which this fine bird was obtained, but from the circumstance of 
its having accompanied other specimens from that part of Brazil which borders the river Amazon, it may 
reasonably be believed to be a native of the woods of those districts. 
In point of affinity it is closely allied to the Pteroglossus maculatus, and with that bird and several others it 
will form a separate and well-defined group, possessing many peculiar characters. 
