376 Savage and Wyman on Troglodytes Niger, 



False vertebrae. The transverse portions of the first, second 

 and third, articulate with the iliac bones. The spinal canal is 

 complete as far as the sixth false vertebra, but is here very 

 much compressed — the seventh, though intimately united 

 with the preceding and forming with it an additional pair of 

 sacral foramina, is not closed up behind, so that properly 

 speaking there is no spinal canal. The eighth or terminal, 

 was styliform, but it is probable, that one intermediate between 

 it and the preceding may have been lost, so that the whole 

 number would be nine. 



Pelvis. '' The pelvis of the Chimpanzee differs from that of 

 man, in all those particulars, which characterize the quadra- 

 mana, and which relate to the imperfection of their means of 

 maintaining the erect position. The iliac bones are long, 

 straight, and expanded outwardly above, but narrow in pro- 

 portion to their length ; the posterior surface is concave for 

 the lodgment of the gluta?i muscles ; the anterior surface 

 nearly flat, and stretching outward almost parallel with the 

 plane of the sacrum. The whole pelvis is placed more in a 

 line with the spine than in man ; its superior aperture is 

 elongated and narrow, so that the whole of the sacrum and 

 coccyx is visible on a front view." " With this general con- 

 formity with the quadrumanous type, there is however a pro- 

 vision for a more extended attachment of the glutaei muscles, 

 in a greater breadth of the ilia between the superior spinous 

 processes, which also incline forwards more than is observable 

 in the inferior Simiae, and it may thence be inferred that the 

 semi-erect position is more easily maintained in the Chim- 

 panzee." * 



* Owen, Op. cit. vol. i. p. 351. 



