378 



H. J. T. BIJLMER 



Diagram XVII. 



Mamb. Pap. 



greater relative facial breadth than the two tribes of the lovver régions. But again we must 



ascertain for the coast-Papuans that that breadth is so large in regard to the cranial breadth 



that the Ind. cran. fac. transv. amounts 

 to ioo. (Head-breadth 136,2, facial breadth 

 135,5) while that of the Timorini is only 

 94 to 95. (Head-breadth 145,7 mm-, 

 facial breadth 137,5 mm.). It is clear that 

 the width of the zygomatic arches again 

 évades as much as possible the narrow- 

 headedness. 



Width between the jaw-angles. 

 (Diagr. XVI). Index jugo-mandi- 

 bularis (Diagr. XVII). 



M. 102,6 mm. (coast-Pap.) must 

 be reduced to 99,5 ; M. 105,6 mm. (Mamb. 

 Pap.) must be reduced to 100,5. The 

 width between the jaw-angles is in the 

 Timorini 102,5 mm. and thus somewhat 

 larger than in both other tribes; this is 

 easily to understand as the joints of the 

 jaw are found at the base of the zygomatic 

 arches. The différence is however smaller 

 than that of the facial breadth. Therefore 



the Ind. jugo-mand. is for the Mamb. and coast-Pap. a little greater than for the Timorini 



(resp. 76,5, 75,8 and 74,5). 



Diagvain XVIII. 











1 









• 



• 







M. 75.8 



• 



• 

 • • 



a 











Med. m. 76 



S 



•••••• 



s s 





M. 76.5 





• 

 • • 





• 







• 



• • 







s • • 





M. 75-= 





• 

 • • 



• 







Med. m. 75 





o* • • • 



» 

 • 



• 

 • 















• 

























• • 













• 



G 







M. 74.5 

 Med. m. 75 



• • 



s • • 



■ •• •• 



• •S •• 









• • 



8»oooe 



s 

















M. 78 









• s 





Med. m. 78 



• 

 • 





• 



• » 







• 



• 



'«•osa s 







• 



• •• «i 



«•III s 



• 



^o-mandibulam 



M. 99.45 



• ••■•• •• • 



Height of face. 



t Pap. 

 ab. Pap. 



Dyak 



I I I I 



Height of face (Diagr. XVIII). Index facialis (Diagr. XIX). 



M. 114,7 mm - (coast.Pap.) must be reduced to m,2; M. 118,2 mm. (Mamb. Pap.) must 



