Genus SELENIDERA. 
Characteres Generici. 
Rostrum brevius et crassius qucim in genere Pteroglosso, nec non cauda brevior est ratione ad magnitudinem corporis 
habita; inter sexus color differt, mare caput pectusque nigra habente ; his partibus fcemind castaneis ; plumae auri- 
culares flavae ; lunulaque flava cervicem imum cingit. Ad hanc notam titula generica refert. 
PTEROGIiOSSUS {Selenidera) G O U Ii D 1 1. 
Ptero. summo capite, nucha, gutture, pectore, abdomineque nigris ; plumis auricularibus aurantiaco-flavis ad apicem strami- 
neis ; fascid semilunari nuchali flavd ; dorso, alis, cauddque olivaceo-fuscis ; hujus rectricibus sex intermediis apice 
castaneo ; lateribus aurantiaco-flavis ; femoribus castaneis, crisso coccineo, cute circa oculos viridi ; rostri mandibuld 
superiore nigrd, apicem versus livide corned, apice albo, fascidque angustd albd ad basin ; mandibuld inferiore albd 
fascid nigrd, apiceque livide corneo, pedibus plumbeis. 
Foemina differt partibus, quce, in mare nigrae, in illd castaneis, et lateribus plumisque auricularibus pallidioribus. 
Long. tot. 11 une. ; rostri, 2i ; alae, 5; caudee, ; tarsi, l^-. 
Male. Crown of the head, back of the neck, throat, chest, and centre of the abdomen jet black; ear-coverts 
orange yellow, passing into fine straw yellow at the apex ; across the top of the back a semilunar mark of 
pale yellow ; back, wings, and tail dark olive, the six centre feathers of the latter tipped with chestnut brown ; 
flanks deep orange yellow ; thighs chestnut ; under tail-coverts scarlet, bare space round the eye green ; 
upper mandible black, passing into greenish horn colour towards the tip ; the latter and a narrow line 
surrounding the base white ; under inandible white for three-fourths of its length from the base ; an irregular 
band of black separates this from the tip which is white with a tinge of olive ; feet lead colour. 
Female. Differs from tlie male in having all those parts which are black in that sex of a fine chestnut ; and in 
the flanks and ear-coverts being of a paler tint. 
Pteroglossus Gouldii, Natt. in Proc. of Zool. Soc. Paid V. 1837. 
This species of Ara^ari having been made known to science since the completion of my Monograph of the 
Family, I take this opportunity of publishing figures of both sexes from specimens presented to the Zoological 
Society of London by M. Natterer, who procured them in the Brazils on the banks of the River Madeira, and 
who has been pleased to name them after myself at a meeting of the above Society on the 11th of April 1837. 
In its affinity the Pteroglossus Gouldii is very nearly allied to the Pteroglossus maculir ostris, but differs from 
that species in being considerably less in all its proportions, in the single large patch of black on the upper 
mandible (which in Ptero. maculirostris is regularly marked with transverse oval-shaped spots), and in the 
more intense oi'ange colouring of the sides of the body: I may add that these differences are found to be 
constant in the several examples of this species contained in M. Natterer’s collection. 
In the Introduction to my Monograph of this interesting group, the members of the family are thrown into 
sections, and I am now inclined to add to the best marked of these sections a generic, or at least a subgeneric 
name. The genus Aulacorhjnchus having been very generally adopted, I take this opportunity of making a 
further subdivision of the family by separating from the true Pteroglossi (of which Ptero. aragmi and Ptero. 
pluricinctus are typical examples,) the following species, viz. Pteroglossus Gouldii, Ptero. maculirostris, Ptero. 
Nattereri, Ptero. Reinwardsii, Ptero. Langsdorffii, and Ptero. Culik, under the generic name of Selenidera. 
The members of this minor group differ not only in the modifications of their structure, but are adorned with 
a different style of plumage, the sexes offering a decided contrast in their colouring, which is not the case with 
the true Pteroglossi. 
They are distinguished by yellow ear-coverts, and a lunar-shaped band of the same colour across the lower 
part of the neck, to which latter peculiarity our subgeneric title alludes. The male also has the head, chest, 
and centre of the abdomen black, while the same parts in the female are chestnut brown. 
The Plate represents- a male and female of the natural size. 
