123 



heart; and a prolongation on either side becoming thinner and thin- 

 ner, until at the base was some vestige of membrane. The heart 

 was contained in this cavity, but its vessels, both pulmonary and 

 arterial, were apparently lengthened in order to reach the lungs. 

 The lungs, pressed out of their place by this unnatural body, were 

 diminished in size ; the substance softened, half pultaceous, and, 

 when squeezed, a purulent matter escaped. There were also nu- 

 merous minute tubercles in the substance of the lungs. The animal 

 had wasted almost to a skeleton.' 



" We may therefore regard the complaint of the KinJcajoii as 

 being a long-continued strumous disease, in which some of the tu- 

 berculous deposits, instead of suppurating, had become partially or- 

 ganized, and the cellular septa rendered ligamentous. 



" I conclude with a few observations on the affinities of the genus 

 Cercoleptes, as they are elucidated by the preceding anatomical ac- 

 count. 



" Besides the differences of outward form which the Kinkajou 

 presents, as compared with the Lemur, in the shorter muzzle, the ab- 

 sence of the hinder thumb, and the presence of the prehensile tail, 

 as well as in the quality of the hair and the dentition, the following 

 important discrepancies occur in the internal anatomy of these two 

 genera : 



" In Lemur the intestinal canal is above six times the length of 

 the animal's body ; in the Kinkajou it is scarcely five. In Lemtir 

 it is also complicated by a cacum of considerable length (measur- 

 ing 15 inches in the riiffed Lemur, according to Mr. Martin, and 

 which I found of 7^ inches in length in a Lemur nigrifrons). The 

 colon also in the Leinures, is largely developed, (measuring upwards 

 of 2 feet, ) and is sacculated at its commencement. In the Kiii' 

 kajou the large intestine, as in the Raccoon, is separated from the 

 small by a slight internal circular projection of the mucous mem- 

 brane, and measures only 6 inches in length. The stomach is also 

 narrower at the pyloric end, and more bent upon itself than in 

 Lemur. 



" With respect to the digestive glands, there are no material dif- 

 ferences. In both animals the liver is much subdivided, and the 

 Spleen is large. The kidneys are of a simple exterior in the Kin- 

 kajou, as in the Raccoon ; not lobulated, as in the true Ursi : in 

 this respect they resemble Lemur, but the form is so usual as not to 

 authorize any deduction from it. In the generative organs, how- 

 ever, the Cercoleptes recedes from the Quadrumanous type further 

 than the Lemur, in the extent to which the uterus is divided, and 

 the consequently greater length of the cormia, and Fallopian tubes. 

 Its nearer affinity to Procyon is also manifested in the disposition of 

 the serous capsule about the ovarium, which leaves only a small 

 orifice sufficient to admit the end of a probe; while, in Lemur, the 

 ovaria are situated, like those of the Q,uadrumana, almost as in the 

 human subject. 



" In the osseous system it may be noticed that the Cercoleptes de- 



