776 



/ 



5119. The thirteenth pair of ribs. 



These, also, although one-third shorter than the preceding pair, and proportionally thinner, 

 retain a distinct articular tubercle and neck. 



5120. The five pieces composing the body of the sternum. 



They are thicker and narrower than in the Orang, and had been ossified each from a single 

 centre : in the two upper pieces the sides are flat, like the front and back surfaces, from which 

 they are separated by sharp margins. 



5121. The right clavicle. 



This is relatively shorter than in the Orang ; the sigmoid curvature is more marked, the 

 sternal end is thicker, and the acromial end broader ; in all which differences it approaches 

 nearer to the form of the Human clavicle. 



5122. The right scapula. 



It differs from that of the Orang in being longer in proportion to its breadth, in the wider 

 expanse of the supraspinal fossae, especially at its back part, in the deeper suprascapular 

 notch, in the broader acromion, and in the longer coracoid which is nearer the glenoid cavity. 

 The subscapular fossa is deeper opposite the spine, and the infraspinal surface is more 

 concave. 



5123. The left scapula. 



5124. The left humerus. 



This is shorter and stronger than in the Orang ; both tuberosities are more developed, espe- 

 cially the inner one, and the bicipital groove is deeper : the antero-interaal surface, bounded 

 outwardly by the deltoidal ridge, is flatter than in the Orang : the supinator ridge commences 

 above the middle of the shaft, the true character of which is well marked. The trochlear 

 prominence of the distal articulation is more developed, and the canal which separates it from 

 the ball for the radius is both deeper and wider. There are two small medullary foramina at 

 the fore and inner part of the middle third of the shaft leading to canals which extend 

 obliquely distad. 



5125. The right humerus. 



It has been fractured and united with much shortening and thickening ; there is also evi- 

 dence of ulceration, concomitant, doubtless, with discharge of dead portions of fractured bone. 

 This specimen ha been longitudinally bisected. 



