Notes in Comparative Anatomy. 15 



of the mesentery were much higher up than in the human subject. The 

 kidnies in situation, and the ureters in their passage, resembled the hu- 

 man, the latter terminating in the upper part of each side of the blad- 

 der. The spleen was situated like that of the human subject, and very 

 similar in appearance. The vessels in Glisson's capsule laid also simi- 

 larly to those of the human subject. The Pancreas and Liver presented 

 nothing remarkable, the small lobes of the latter were not quite so well 

 defined as in man. Small intestines 5 feet 6 inches in length ; appendix 

 cceci vermiformis 2 inches; large intestines 18 inches. The rectum di- 

 lated in the pelvis forming a pouch. Two bodies having the appearance 

 of vesiculcB seniinales, but very minute, the animal being young, occu- 

 pied the usual situation, as did also the vasa deferentia. 



Diana Monkey. Simia Diana, Linn. 

 Cercopithecus Diana, Geoff. 



Length from the mouth to the root of the tail 17 inches; of the tail 

 itself 24 inches. Stomach a single cavity, small intestines 4 feet ; no 

 ccBcum; large intestines 2 feet in length. This Monkey had appeared 

 unusually dull and drowsy some days before death ; the intestines were 

 generally of large volume, the colon and rectum distended with the re- 

 mains of food. A considerable quantity of water pervaded the cellular 

 tissue of the lower extremities. 



Weeper Monkey. Cehus Jlpella, Desm. 



Length from the nose to the root of the tail 10 inches, tail 11 inches; 

 length of the whole intestinal canal 6 feet 10 inches. Kidnies inflamed, 

 particularly that on the left side ; lungs, liver, and intestines generally 

 healthy. Bones of the extremities irregular in form, quite cartilaginous, 

 and devoid of earthy deposition ; those of the head perfectly soft and 

 flexible, inferior maxillary bone the same. The cerebral and spinal 

 nerves, when in a relaxed state, exhibited a spiral filament passing along 

 their substance, which disappeared on tension. P. P. MoUinelli, who 

 described this appearance, in 1775, seems to be the first anatomist who 

 mentions this arrangement of the nervous filaments of the human sub- 

 ject within their covering of the pia mater : they form small transverse. 



