110 
WILSON’S PETEEL. 
along the edge of lower mandible T \ ; tarsus If ; middle toe 1, its claw T \. 
Weight 1£ oz. 
Adult Female. 
The female resembles the male. 
The palate is marked behind with four longitudinal ridges, which are 
papillate, and before with three ridges ; the mouth 4i twelfths in width, but 
capable of being dilated to 9 twelfths ; the 
tongue £ inch long, triangular and acumi- 
nate, at the base concave and emarginate, flat 
above, with a slight median groove. The 
lobes of the liver are equal, their length 
twelfths. The oesophagus, a b, has a uniform 
width of 3 twelfths until it enters the thorax, 
when it at once expands into an immense 
ovate sac, b c d e, 1 inch 11 twelfths long, 
viewed anteriorly 1 inch 1 twelfth in breadth, 
laterally 1 inch 2 twelfths. This sac is 
formed, properly speaking, of the proven- 
triculus; its walls are extremely thin and 
transparent, and it is studded all over with 
roundish glandules placed at a considerable- 
distance from each other. It curves upwards 
in front, and becomes narrowed to 2 twelfths, 
ending in the stomach, which is an extremely 
diminutive gizzard, of an oval form, only 3i 
twelfths long, and 3 twelfths in breadth. 
The stomach is thus reversed in position, its 
fundus being anterior ; and accordingly the 
intestine, fg h i, comes off from its left 
instead of its right side, forms a semicircular sweep round the fundus, then 
passes backward for 1 inch, to f bends forward to the liver, at g, and forms 
a number of loops, g h i, making in all 9 turns, The duodenum is 1 inch 
f twelfth wide, and the intestine continues so for half its length, when it 
gradually contracts to f twelfth, and is rather less in the rectum, which is 
terminated by a very small globular cloaca, j, 3£ twelfths in diameter. 
There are no coeca. The intestine measures 14 inches. The stomach pro- 
perly so called is lined by a rugous epithelium, and is in fact a true gizzard. 
It contains a quantity of shell-sand. The inner surface of the proven triculus 
is soft and smooth ; that of the oesophagus longitudinally plicate. The trachea 
is li inches long, from 1J twelfths to 1 twelfth in breadth, flattened, with 
rings 84 in number, slender, and unossified. Bronchi wide, of 25 half rings. 
