Scott. — Osteology of the Maori and Moriori. 



43 



First lumbar vertebra 



Second „ 



Third 



Fourth 



Fifth 



Seven Males. 



130-2 



117-9 



108-1 



97-2 



87-8 



Five Females. 



126-4 



113-7 



lOG-7 



97-1 



85-8 



In two cases the body of the first lumbar vertebra shov.s 

 a much more than usual excess of the posterior depth over the 

 anterior. In one of these, while the depth behind is 28mm., 

 in front it is ISmin., and in the other the depth diminishes 

 from 25mm. to 15mm. In both there is also considerable 

 transverse hollowing of the upper surface. 



Imperfections in the devolopment of the neural arch were 

 more frequently seen among the lumbar vertebrae than in the 

 dorsal region of the spinal column. The separation of its 

 posterior part (the laminae with the spine and the inferior 

 articular processes) from the pedicles was observed nine times. 

 Six of the fifth lumbar vertebrae show this peculiarity ; the 

 fourth shows it in two instances ; and even in the third I 

 noted it once. In this latter case not only does the third 

 vertebra show this defect in ossification, but the fourth also, 

 as if to compensate for the undue rigidity of the loins caused 

 by the fusion of the fifth vertebra with the sacrum which is 

 present. 



The fifth lumbar vertebra was seen to articulate by an 

 enlarged transverse process with the lateral mass of the 

 sacrum in three instances, and fusion between these bones 

 occurs in the one case noted above. 



The presence of a lumbar rib was noted once. This 

 articulated with the right side of a first lumbar vertebra. The 

 transverse process on this side is like that of the twelfth dorsal 

 vertebra, while on the pedicle is the articular surface for the 

 rib. The other side is normal. 



Sternum (Maoei). 



I have seen only one sternum in which the manubrium is 

 fused with the body of the bone. In all the others these two 

 segments are distinct. 



Pelvis (Maori). 



In Table V. I give the measurements of twenty-four Maori 

 pelves, ten males and fourteen females. 



The following are the measurements adopted, given in the 

 order in which they occur in the table : — 



