50 



it might otherwise appear. The duodenum commenced by a lai-ge 

 pyriform dilatation, similar to that in the Capyhara and Spotted Paca ; 

 beyond this part it presented a diameter of an inch ; the small intes- 

 tines then gradually widened to a diameter of l-i- inch, and as gra- 

 dually diminished again to the diameter of an inch : their entire 

 length was 11 feet 3 inches. 



" The ileum entered obliquely the wide sacculated colon, the bulging 

 commencement of which represented a short and wide cacum ; and 

 from the angle between this part and the ileum, a cylindrical vermi- 

 form process 2 inches long, and 3 lines wide, was continued. 



" The colon continued to be puckered up by two wide longitudinal 

 bands into large sacculi, which could be traced becoming less and less 

 distinct along an extent of the gut measuring five feet 2 inches. Cu- 

 vier observes that the large intestines were hardly more voluminous 

 than the small * ; in our specimen the colon measured 24- inches in 

 diameter, being more than double that of the ileum. But a more im- 

 portant difference was observed in the presence of a second cacum 

 at the distance from the first above mentioned. This consisted of a 

 pyramidal pouch projecting 3 inches from the side of the gut, and 

 communicating freely with the same at its base : its parietes were 

 thinner than those of the rest of the large intestine ; it was situated 

 below the pyloric end of the stomach, had only a partial investment 

 oi peritoneum, and adhered by a cellular medium to the duodenum and 

 pancreas. Below this second cacum, or lateral dilatation, the colon 

 formed a large sacculus, and was then disposed in a series of smaller 

 sacculi, which at length disappeared at a distance of 6 feet from the 

 second cacum ; the rest of the large intestine, 3 feet in length, was 

 of simple structure, and of smaller diameter, viz. \\ inches. 



" The internal surface of the small intestines presented some slight 

 transverse corrugations ; that of the colon was smooth, except below 

 the second cacum, where the lining membrane was corrugated irre- 

 gularly; and a small patch of glands was here observable. 



" The rectum terminated, as in other Marsupials, immediately be- 

 hind the urethro-sexual aperture, and within a common outlet, both 

 the excretory orifices being embraced by a common cutaneous 

 sphincter. 



" The liver was more completely separated into lobes than in the 

 specimen dissected by Cuvier. Home is silent as to the structure 

 of the liver ; his observations respecting the digestive organs are li- 

 mited to the peculiarities of the stomach. In our specimen the liver 

 was divided by an extensive longitudinal fissure into two lobes, the 

 right of which was again deeply subdivided into two, the gall-bladder 

 being lodged in this second fissure : the gall-bladder was of an oval 

 form, 24- inches in length. 



" The pancreas and spleen were both well developed, and had each 



* " Dans le Phascolome, les gros intestins ne sont guere plus volumineux 

 que les petits." Lemons d'Anat. Camp., nouv. ed. 



