336 Records of the S.x\. Museum 



'I'lie palatine suture is irregularly crucifonn (Fig. 60). The vomer consists 

 still of t\\-o partly fused plates, and presents a V-shaped suhsphcnoidal cleft. 

 The hasisphenoid suture is partially synostosed ; the foramen magnum is almost 

 circular, and there are post-condyloid canals on both sides, that on the left hein; 

 the larger. 



SPECIMEN 4. 



Plate xxxix, and Fig. 61. 



Skull. Adult, aet. c. 35-45. 



Dolichocephalic ; plagiocephalic. 



Capacity — 1315 cc. 



Melanesian: Mallicollo, New Hebrides. Reg. A. 265. [Pres. — Flume, Esq.) 



This skull — a very heavy specimen — presents several differences from the 

 deformed skulls already described. The occiput is considerably more vertical 

 than in the New Britain skulls, owing to a slightly different method of producing 

 the distortion, and for the same reason the bregmatic projection is less marked, 

 as are also the grooves that bound it anteriorly and posteriorly. The curve 

 from the obelion downwards is more nearly a straight line from obelion to 

 inion, antl is met at an angle slightly more than a right angle, by another straight 

 line from inion to opisthion. In comparison, the outline of Specimen i from 

 obelion to opisthion is the arc of a circle of which the centre is at the bregma. 



The specimen is plagiocephalic; a line drawn along its central points being 

 concave to the right. 



In norma verticalis one notes the iiatness of the frontal, and the elevation 

 of the parietal bones. The coronal suture, largely synostosed, presents the 

 remains of Wormian bones at either pars complicata, and at the pterionic angles 

 a well-marked left epipteric bone, and at the right what is probably the remains 

 of an epipteric bone fused with the temporal squame. By means of this fusion 

 there exists a frontosquamosal suture in place of the usual sphenoparietal. 



The parietal eminences are marked, and bounded below by the groove 

 produced by the compressing bands. The greatest cranial width falls bcUiw the 

 squamosoparietal suture. One parietal foramen is seen to the left of the 

 obelion. 



The lambdoid suture is markedly denticulated, and several WOrniian bones 

 occur in the suture and also at the points corresponding to the mastoid fonticuli 

 in the infant. 



A very prominent occipital torus is present. 



