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AVES.- 275
deorsum supra nares vergentibus, basi &
marginibus ex lamellis, area vero ex capillis
membranaceis constructa.
Nares ad basin rostri, juxta latera,
subtriangulares, fornicatæ, foraminibus 2:bus instructæ,
quarum alterum internum, longitudinale, parum
flexuosum, angustum; inferius superius paulo
latius, marginibus cinctum æqualibus, nudis,
margine interiore in medio finuato; externum
amplum, triangulare, basi latissimum, apice
angustius, cinctum exterius margine superiore
membranaceo, annulo nudo, qui pone elevatus,
crasiusculus, anterius tenuior, cinctus plumulis
simplicibus, qui superius & subtus minimi,
pone longiusculi, antice vix conspicui. Palearia
juxta gulam directe sub oculis, membranacea,
crassiuscula, superiore superficie convexa,
subtus concavo-ovata, versus apicem parum
attenuata, apice obtusa, rotundata, basi margini
maxillæ superioris affixa, cæterum libera,
retrorsum magis quam deorsum directa, basi antice
& pone area sub nuda cincta. Setæ erectæ,
rigidiusculæ, ante palearia ad basin maxillæ in-
ferioris.
Oculi ad latera capitis, rostro quam basi capitis
multo propiores. Area oculorum nuda, rugesa,
latiuscula. Orbita ovato-orbiculata, antice
sinuata. Supercilia elevata, levissime striata,
ciliata, ciliis simplicibus setaceis, in margine
superiore longiusculis, in inferiore breviusculis.
sMembrana nictitans ex inferiore parte orbitæ
oriunda inferiorem marginem supercilliorum
constituens. Pupilla atra. Äris intense grisea.
Aurium aperturæ ad latera capitis juxta ejus basin,
orbiculares, setis erectis tectæ, ampla.
Aperturæ
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