606 ON ARCTOCEBUS CALABARENSIS 
inch) throughout ; from the pylorus to its junction with the colon it is 
26 inches long. 
The large intestine, about 0'7 inch wide, is devoid of longitudinal 
muscular bands or sacculations, nor is it divided definitely into colon 
and rectum ; it is 14 inches long. 
As the gullet and oral cavity are 5 inches long, the alimentary 
canal is altogether (5 +1$+26+14)=46} inches long; or a little 
more than four and a half times as long as the body. 
In the Potto the proportion is as 6 or 65 to 1; in Stenops javanicus 
395 tot; in Stenops gracilis 4 to1; in Otolicnus peli 49 to 1. (See 
Van der Hoeven, ‘ Potto van Bosman,’ p. 52.) 
Fic. 8. Fic. 9 
The stomach, with the cesophagus (@), The ileum (7/), colon (Co), and czecum (Ca) 
the duodenum (D), the pancreas (7), and of the Angwantibo, Nat. size. 
the spleen (Sf) of the Angwantibo. Nat. size. 
Where the large and small intestines join, the cecum is given off. 
This is cylindroidal, somewhat curved, and 2} inches long by o’g inch 
in diameter. It has no vermiform appendix (fig. 9). 
The liver (fig. 10) is a very irregularly shaped body, which, if 
spread out on a flat surface, nearly covers an area 2°2 inches wide by 
1°85 inch long. It is broken up into numerous lobules by radiating 
fissures of greater or less width ; but it may be resolved into the same 
components as that of Man, by taking into account the attachment 
of the ligaments, and the position of the vessels, gall-bladder, and 
ligaments. 
Thus the upper surface (fig. 10, A) exhibits the attachment of the 
broad ligament, wz; the moiety of the liver to the left of this (4, 4) 
