The zoology of the voyage of H.M.S. Beagle [vol. 3 of 5] : $b BirdsGould, John
Science
The zoology of the voyage of H.M.S. Beagle [vol. 3 of 5] : $b Birds
Gould, John
Beagle Expedition (1831-1836); Birds; Zoology
This bird being injured about the sexual organs, I could not ascertain
the sex. Tongue pointed, armed at the base on each side with a
flattened tricuspid spine; trachea small, of uniform diameter
throughout its whole length, acted upon by one pair of
sterno-tracheal muscles; œsophagus funnel-shaped at the upper
extremity, when distended capable of containing a common pencil, at
its junction with the proventriculus much smaller; proventriculus
scarcely perceptible; gizzard small, consisting of little more than
a thick skin, inner coat hardened; the entrance of the œsophagus,
and the exit of the intestine placed very near together at the upper
extremity of it; intestinal canal very short, and of large diameter,
entirely devoid of cæca; the whole length with the gizzard and
œsophagus distended with a stringy substance, resembling coarse spun
cotton cut into short lengths.
Inches
Length of œsophagus, including proventriculus 3
of intestinal canal 7½
Length of gizzard ⅝
Breadth of ditto ½
Sternum of nearly equal breadth, both posteriorly and anteriorly, much
narrowed near the middle; posterior margin nearly straight, indented
with two large fissures, narrowed at their exit; between the
junctions of the coracoids furnished with a bifid process; the
portion of the sternum to which the ribs are attached, continued
anteriorly beyond the junction of the coracoids; keel of moderate
size; coracoids long, not very strong; os furcatum long, slightly
arched, furnished with a flattened process, turned inwards at the
point it approaches the sternum.
Pelvis broad, and short, narrowest anteriorly, the os pubis and
ischium continued far backwards, beyond the junction of the caudal
vertebræ; ribs strong, and flattened; posterior process large;
scapula long, broadest near the extremity; legs of moderate
strength, the internal processes of the tibia large, and flattened;
bones of the cranium strong.
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