^00 OBSERVATIONS ON THE ANATOMY OF 
were strongest in the caecum and colon. The ducts from 
the hver and pancreas entered the duodenum at the dis- 
tance of one inch from the pylorus. The duodenum was 
the widest portion of the small intestine^ and measured 5 
lines in diameter; the jejunum and ilium were scarcely 4 
lines in breadth. No food was found in the duodenum or 
jejunum, but the ilium contained a considerable quantity 
of a soft chyme, mixed with fine sand, and very minute 
fibres. In the upper part of the ilium this chyme had a 
yellow colour ; but in the lower ten inches, the coats of 
which were thickened and black, the chyme was of a black 
colour, and more consistent. The whole internal surface 
of the small intestine was smooth and uniform, without 
any apparent villi. The black and thickened appearance 
of the lower portion of the ilium seemed to be the result of 
a wound received during the life of the animal, as there 
was an incised wound half an inch long through the coats 
of the intestine at the upper end of the blackened portion. 
The parietes of the abdomen had very properly been 
opened to allow tlie spirits to act on the viscera, when the 
specimen was about to be sent from New Holland. The 
orifice of the csecum was large, and was only protected by 
a thickened margin acting as a valve. The caecum resem- 
bled that of the Opossum ; it was short, smooth, and uni- 
form on its surface, without internal plicae, or external 
longitudinal bands; it became gradually larger from its 
valvular orifice to its shut end, and was bound throughout 
its whole length to the outer surface of the intestinum 
ilium by a distinct meso-caecum. Its internal surface was 
strongly marked with longitudinal striae of muscular fibres, 
and its cavity was filled with the game kind of black fecu- 
]en"|^natter which filled the colon and rectum. The colon 
and rectum had no internal plicce, nor external longitudi- 
