765 



5067. The seventh cervical vertebra. 



The transverse process is represented by the diapophysis only, which is not perforated. 



5068. The twelve dorsal vertebrae. 



The metapophysis begins to project from the anterior angle of the diapophysis in the 

 seventh dorsal, progressively increases in size in succeeding vertebrae, and is advanced in 

 position close to the anterior zygapophysis u\the last dorsal. 



In comparing the last dorsal vertebra of the Orang with that of Man, one may notice the 

 smaller size of the body and the shorter neural spine in the former. The metapophysis 

 is distinctly developed in both. The neural arch in the Orang is entire posteriorly, not 

 notched. 



5069. The four lumbar vertebrae. 



5070. The sacrum and coccyx, including eight vertebrae. 



The three anterior of these unite with the iliac bones. Traces of the primitive separation 

 of the costal portion of the transverse process of the first and second sacral vertebrae are still 

 discernible. The neurapophyses of the third, fourth and fifth vertebrae are not confluent 

 above the neural canal, which is widely open, in the fifth. The three terminal vertebrae are 

 reduced to their central element. 



5071. The sternum. 



The body of the bone has consisted of four pairs of ossicles, a second pair being still un- 

 united, but traces of the separation of the others are recognizable. In addition to these eight 

 originally distinct elements, there is a separate manubrium and an osseous piece supporting 

 the ensiform cartilage. 



5072. The osseous parts of the thoracic pleurapophyses or 'vertebral ribs,' con- 

 sisting of twelve pairs. 



The first rib is less curved, and describes a smaller portion of a circle than in Man : its 

 head is relatively larger, and is supported on a shorter neck. It has an epiphysis, as hi Man. 

 The distal portion is relatively less expanded than in Man. The other ribs chiefly differ in 

 their more compressed form and their more gradual and equable curvature. 



5073. The left clavicle. 



It is less curved than in Man, and the distal end is much less expanded. 



