432 GLOSSY IBIS. 
form together when closed another deep channel: the upper 
mandible is filled inside to a great extent with the bony sub- 
stance of the bill, so as to be hardly concave. The under 
mandible follows exactly the curve of the upper, and is but 
half as high on the sides: it is strongly canaliculated below 
from the base to the tip; the channel from the tip to the 
middle is narrow, but then widens considerably, and is 
extremely wide at base, where it is filled by a naked 
membrane forming a kind of jugular pouch. The nostrils 
are placed near the base of the mandible, at the origin of the 
lateral furrows, and are oblong, narrow, longitudinal, furnished 
in the upper part with a naked membrane. The tongue is 
sagittate and less than three-fourths of an inch from the acute 
point of its lateral lobe to its tip: the jugular pouch is dusky : 
the small naked part of the face, the lora and region around 
the eyes are of a greenish grey, which passes into whitish on 
the limits of the feathers: the irides are dark brown. The 
crown of the head and cheeks are of a brownish black with 
purplish reflections; the throat immediately below the pouch 
is of the same colour, though somewhat less brilliant, and with 
more green reflections; the feathers of the head are pointed, 
those of the occiput being, moreover, suberectile: the whole 
base of the plumage is of a pale sooty grey. The feathers of 
the back and wing-coverts are compact and rounded; those 
of the inferior parts are rather loose in texture at their mar- 
gins; hind head, neck, upper portion of the back, inner wing- 
coverts to the shoulder of the wing, and all the internal parts 
of the body, together with the thighs, of a vivid brownish 
chestnut, very brilliant and purplish on the interscapular 
region: lower portion of the back, rump, vent, tail and wings 
entirely, including the upper and lower coverts and the long 
axillary feathers, glossy golden green, with purple reflections, 
except the primaries, which are pure golden green. The wings 
are one foot long, and when closed reach precisely to the tip 
of the tail, which is four and a half inches in length, and even 
at the tip: the first primary is hardly shorter than the third, 
