105 



cesophagus terminates 4 inches from the cardiac end of this bag, 

 which is formed by one of the pouches of the sacculated part of the 

 stomach, the sacculated structure being continued through five-sixths 

 of the extent of the organ. 



The length of the stomach, measured along the greater curvature 

 ■when fully distended, is 3 feet 8 inches ; the circumference at the 

 middle of the sacculated part is 11 inches. The sacculi are formed 

 chiefly by two longitudinal bands, one along the front, the other along 

 the back part of the stomach, and by a third of narrower extent 

 along the greater cnri^ature, from which the epiploon is continued. 

 The principal sacculi are about fifteen in number ; the terminal part 

 of the organ, which has the form of a simple digestive stomach, mea- 

 sures about G inches along the greater curvature. The circumference 

 of the pylorus is 2 inches 9 Hues. The duodenum expands at its 

 commencement. The epithelium is continued from the oesophagus 

 for a breadth of 2 inches down the posterior surface of the stomach, 

 and of 1 1 inch down the anterior surface, and thence is continued 

 slightly diminishing in breadth 3 inches towards the pyloric end of 

 the stomach, and 2^ inches towards the cardiac end. The rest of the 

 cavity is lined with the usual gastric vascular membrane, the surface 

 of which is diversified by patches of follicular apertures along the 

 upper curvature of the stomach, which patches increase in breadth 

 as they approach the true digestive portion. At the cardiac orifice 

 two parallel longitudinal ridges extend along the lesser curvature to 

 the pyloric end of the stomach, 2^ lines in breadth and 7 lines apart, 

 forming a channel of that width leading from the cardiac towards the 

 pyloric orifice ; both the muscular and the mucous coats of the sto- 

 mach increase in thickness towards the pylorus, which is defended by 

 an oblique ridge. 



In the great Kangaroo the cardiac end of the sacculated stomach is 

 bifid, and the epithelium lines one of the culs-de-sac : in the rock Kan- 

 garoo {Macr. penicillatus) the cardiac end terminates, as in the Tree- 

 Kangaroo, in a single cul-de-sac. In the Hypsiprijmni the whole of 

 the sacculated structure of the stomach is on the left side of the ter- 

 mination of the oesophagus, whereas in the Dendrolagus, as in the 

 true Kangaroos, the major part of that structure is to the right of 

 the cardiac orifice. 



The intestines were 9 feet in length, the small intestines being 

 6 feet, the large 3 feet. 



The circumference of the csecum is 5 inches, the length the same. 

 It is simple, and terminates obtusely without diminishing in diameter. 

 The ileo-caecal aperture is in the form of a narrow transverse slit, 

 4 lines in extent, with a tumid margin opening upon a fold, which 

 partially denotes the boundary between the csecum and colon. There 

 is a patch of agminated glands at the beginning of the colon, and 

 smaller patches in other parts of that intestine. 



The parotid gland is of large size, and extends far down upon the 

 neck. 



The liver is relatively small, and was situated in the right hypo- 

 chondrium : it consists of a right and left lobe, the former subdivided 



