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«' Tlie anatomical examination of this new species did not bring 

 to light any remarkable deviations froni tlie ordinary structure of 

 the Cercopitheci ; in vvhich, as in the Baboons, the most interesting 

 circumstances are those wliich indicate the departure from the hu- 

 man type and the approximatioii to the caniivorous genera, e. g. 

 the genus Canis. Among these may be noticed the exten3ion of the 

 superior or lesser cornua of the os hyoides, and the museles which 

 ccnnect them to the greater ; the projecting ridge on the thyroid 

 cartilage for the attachment of the thyreo-hyoidei ; the bone deve- 

 lopedat the extremity of the penis ; tlie uniform character of the 

 lining membrane of the intestinal canal ; the simple cceciim, and its 

 loose niode of attachment to the abdominal parietės į the order 

 of origin of the large arteries from the aortic arch ; the great extent 

 of the inferior cava in the tho?-ax; the additional lobe to the right 

 lung ; the additional lobe to the liver; and the simple composition 

 of the kidneys. It is less necessary to notice the remarkable deve- 

 lopment of the/aHZoriVinsome of these species, as this circumstance, 

 together with their projecting orbits and receding forehead, has 

 procured for them from the most remote periods of natūrai historv 

 an appellaiion characteristic of the relation above alluded to. 



" The abdominal viscera of this Monkey vvere enveloped in a large 

 0mentum, extending to the pubes, and, as it vvere, tucked in at the 

 iliac and lumbar regions ; it vvas streaked vvith fat of a bright ve!lo\v 

 colour ; the line of adhesion vvas to the stomach and transverse. 

 colon, to the ascending portion of the colon, and as lovv do\vn as 

 the ccemm. The stomach had nothing of a sacculated appearance, 

 as found by Dr. Otto in a species oi' Semnopithccus ?, but the left 

 blind extremity was more considerable than in the Macaci and 

 Cynocephali, the cesophagus entering at an equal distance from the 

 two extremities. I have observed the šame circumstance in Cerco- 

 pithecusJ'uUginosus, The pyloric end lay immediately below thegall- 

 bladder, and had in consequence adeep circumscribed yello\vstain. 

 The duodenum has the šame short course as in the Mandrill, and 

 becomes a loose intestine as soon as it has crossed the spine. The 

 ccEcum and ascending arch of the colon have an entire investment of 

 perUoneiim, and are consequently more loosely attached to the parietės 

 of the abdomen than in the human subject. At the commencement of 

 the transverse arch the colon is connected with the duodenum; it ter- 

 minates in a considerable sigmoid flexion on the left side oi the abdo- 

 men. TheccECum ispuckered upbyfourlongitudinal muscular bands, 

 of vvhich one terminatesat the entry of the ilium, and the otherthree 

 are continued on to the colon. The interior of the jejunum presented 

 asingular appearance from numerous minute black spots, not unlike 

 the skin of a Sepia ; vvhen viewed through the microscope they 

 vvere found to be situated at the extrenuties of the villi, vvhich are 

 very minute anddisposed in delicate zig-zag lines ; the black points 

 disappeared on sponging the surface three or four times. In the 

 omentum vvas found, vvhat rarely occurs in Quadrumana, viz., a cyst 

 containing the Cysticercus tenuicollis of Rudolphi ; differing only in 

 its smaller size from those of the sheep and other ruminants. 



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