452 



DE, P. CHALMERS MITCHELL ON THE 



In Macropus bennetti (fig. 8) the pattern is essentially similar to that in Bettongia, 

 with two exceptions. The less important point of difference is that the colon (C.L.) 



Kr. 8. 



Intestinal Tract of Macropus bennetti. 

 S. Cut end of duodenum near stomach. 

 E. Cut end of rectum near anus. 

 C. Normal caecum. 

 Cs. Vestigial caecum. 

 C.L. Colic loop. 



passes insensibly into the rectum, both portions of the hind-gut forming a continuous 

 series of long subsidiary loops. The presence of a separate posterior mesenteric vein, 



