1884.] MH. W. F. R. WELDON ON f'ALLITHKIX GIGOT. 7 



foot, inches. 



From outer canthus to base of ear 1 



Extreme length of hand (palmar) 2f 



„ ,, fore arm 3 



,, ,, upper arm 2g 



,, ,, foot (plantar) 3| 



„ „ cms 4 



thigh 4| 



The tongue, mouth, and salivary glands present few points of 

 interest ; the stomach is simple, though its transverse diameter is 

 longer proportionally than in man. The biliary and pancreatic ducts 



Liver of C&lliihrix gigot, nafc. size. 



R.C., L.C., right and left central ; R.L., L.L., right and left lateral ; Sp., spige- 

 lian ; ca., caudate lobes. 



open together an inch below the pylorus. The liver (fig. 1) is much 

 more deeply divided than in Callithrix moloch. The right lateral 

 lobe is also very much larger, and partially divided into two, while 

 the caudate lobe is smaller than in the allied species. The small 

 intestine measures 4 feet 5 inches, the large 18 inches in length — 

 proportions which differ from those found in C. moloch, where the 

 large intestine measured 19 inches in a specimen whose small intes- 

 tine was only 2 feet 1 1 inches long. 



At the junction of small and large intestine is a caecum (fig. _M. 

 tapering gradually till within a short distance from the tip, where 



