520 



DE. P. CHALMEES MITCHELL ON THE 



In fif. 49 the same region is represented as it occurs in three Monkeys, fig. 49 I 

 being a Callithrix, II being a Cehus, and III a species of Macacus. In these the only 

 dissection that was made was the cutting of windows in the wall of the gut. The 



Pig. 48. 



Ileo-CEecal regions in Babirtissa babirussa (I) and MyceUs beelzebul (II). 



C. Caecum. 

 S.I. Cut edge of small intestine. 

 H. Cut edge of colon. 

 I. A. Free tubular aperture of small intestine to colon. 

 C.A. Aperture of caecum to colon. 



C. Caecum. 

 W. " Window " cut ia wall of gut. 



aperture of the ileum in each case is a tubular projection ; in Callithrix the 

 aperture into the caecum is also narrow and tubular, in the others it is in wide 



