50 



it might otherwise appear. The duodenum commenced by a large 

 pyriform dilatation, similar to that in the Capybara and Spotted Pacą ; 

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

 tiiies then gradually widened to a diameter of 14- inch, and as gra- 

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

 length was 11 feet 3 inches. 



" The ileum entered obliąuely thewide sacculated colon, the bulging 

 commencement of -vvhich represented a short and wide ctecum ; and 

 from the angle bet-vveen this part and the ilevm, a cylindrical vermi- 

 form process 2 inches long, and 3 lines wide, -n-as continued. 



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

 bands into large sacculi, -vvhich 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 Tvas obsen-ed in the presence of a second ccecum 

 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 šame at its base : its parietės were 

 thinner than those of the ręst of the large intestine ; it vras situated 

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

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

 pancreas. Be]ow this second ceecum, or lateral dilatation, the colon 

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

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

 second ccecum ; the ręst of the large intestine, 3 feet in length, was 

 of simple structure, and of smaller diameter, viz. 1^ inches. 



" 'rhe internal surface of the small intestines presented some slight 

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

 the second ccBcum, -vvhere the liniag membrane was corrugated irre- 

 gularly; and a small patch of glands was here observ^able. 



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

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

 the escretory orifices being embraced by a common cutaneous 

 si^hincter. 



" 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 tvvo lobes, the 

 right of \vhich was again deeply subdivided into tw'o, the gall-bladder 

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

 form, 2-Į- inches in length. 



" The punci'eas and spleen were bothwell developed, and had each 



* " Dans le Phascolome, les gros intestins ne sontguėre plūs vohimineus 

 qiie les petits." Lecons d'Anat. Comp., nouv. ed. 



