Habits and Osteology of a New Orang. 433 
dering it almost impracticable to balance the trunk on the base 
of the sacrum, or to maintain with ease an erect attitude un- 
aided by the arms. 
All the long bones of the upper extremity are remarkable 
for their great size and strength. By reference to the table 
of admeasurements it will be seen that the scapula is two 
inches longer, and nearly two inches broader than that of an or- 
dinary man. Instead of having the narrow and elongated form 
of the Chimpanzée, the bone is more nearly equilateral, and 
recedes farther from the human type in having the fossæ above 
and below the spine more nearly equal ; the spine itself is not 
so well developed, and after passing the middle of the bone is 
Tepresented only by a slightly prominent ridge, which termi- 
nates but a few lines above the middle of the posterior edge 
of the dorsum. The supra-spinous portion is more nearly in 
. the same plane with the inferior part than in either man or 
the T. niger; the acromion process is broad and flat as in 
. an, but is more straight, its curves are larger, and it is destitute 
E of the prolongation inwards which characterizes the same part 
E mman. The glenoid cavity prešents the form of that of the 
¥ human Scapula, except that its superior extremity is deflected 
_ towards the base of the acromion instead of the coracoid pro- 
3 cess. A subscapular fossa exists, which is subdivided into 
a three smaller fossze, and the coracoid process is much stouter 
in man, its terminal portion forming a right angle with 
bone. 
... The humerus, seventeen inches in length, exceeds that of 
the adult S. satyrus by 2.6 inches, has its bicipital groove as 
tabe Chimpanzée, more on the anterior face than in man ; its 
1 of 
Tosities are largely developed, indicating the great strength 
the rotator muscles; and the impressions formed by the at- 
nent of the pectoralis major and latissimus dorsi are very 
sly marked on each side of the bicipital groove, having 
“A a length of about three inches, indicating the great 
i Of the Upper extremity, the clavicles and bones of the wrist and hand were 
