438 



Comparative Anatomy of 



junction of the small intestine If in. (Fig. 2 :) — length of the sto- 

 mach (Fig. 1) * inflated, 5^ in. ; diameter at the junction of the 

 oesophagus, which is the greatest, 3£ in. ; length from the oesopha- 

 gus to cerebral extremity, 2 inches. 



Upper jaw, molars 8 ; incisives 4 ; canines 2. — Lower jaw. mo- 

 lars 10 ; incisives 4 ; canines 2. 



The posterior molars in the upper jaw were just making their 

 appearance ; in other respects, the dentition agreed with that given 

 of the genus Cercocebus in " F. Cuvier Dents des Mammiferes." 



Vertebrae, cer. 7 ', dor. 12 ; lum. 8 ; sac. 2 ; caud. 20, some of the 

 latter, probably two or three, were wanting. — Ribs, true, 8 ; false, 4. 

 — Length of ulna, 5| in., of humerus, 5 T ^ in., of femur, 5^ in., 

 of tibia, 5^ in. 



Cercocebus fuxiginosus, Geqffroy. 

 White-eyelid Monkey, Venn. 



The specimen was a young female. The teeth were not all de- 

 veloped, and the white on the eyelids, so remarkable in the adult, 

 was not clear or well defined. In other respects it agreed with the 

 description of authors. 



Length from the nose to the root of the tail, 1 foot 3| in. ; length 

 of the tail, 1 foot 6| in. : — length of the intestinal canal from pylo- 

 rus to anus, 10 feet 9 in. ; length of rectum, 2 feet 9 in. : — dia- 

 meter of the kidney, 1 in., length 2 in. ;„ liver five-lobed. 



In the peritonaeum were numerous entozoa, about 30 in number. 

 Diameter of the small intestine 1 in., above the ccecum, 77^ * n - > 

 diameter of the rectum, 1 in., below the ccecum, 1| in ; length of 

 ccecum, 1 j 8 c in. ; length of the stomach (Fig. 4) when inflated, 4f in. ; 

 diameter at the junction of the oesophagus, which is the greatest, 

 2f in. ; oesophagus inserted about one-third of the whole length 

 from the cardiac extremity. The ccecum, and the adjoining parts 



* The dotted lines indicate the direction in which the dimensions have been 

 taken. 



