796 SIR WILLIAM TURNER, THE CRANIOLOGY OF THE NATIVES OF BORNEO, 



was prolonged into a broad curved plate ; in both the jugals were tuberculated. In P 

 the basi-bregmatic diameter exceeded the greatest breadth by 1 mm., and the vertical 

 index, 81*5, hypsicephalic, was slightly more than the cephalic index, 80*9; in C the 

 cephalic index, 92*6, exceeded the vertical, 89, as is customary in brachycephali ; and 

 the mean breadth-height index was 90*5. The cranial capacity in each skull, as 

 determined by my method, was 1515 c.c, a volume which exceeded somewhat the 

 mean capacity in Europeans of the male sex.* Each skull was brachycephalic, i.e. the 

 length-breadth index was 80 and upwards ; the term therefore includes both the sub- 

 brachycephalic and brachycephalic groups of Paul Broca. This type of head is without 

 doubt the form found in the pure Malay, and when we see in Museums skulls, either 

 dolichocephalic or approximating thereto, labelled Malay, we may regard them as not 

 of the pure race, but either a product of cross-breeding, or not properly identified. 



Pelvis. — The skull from Perak was accompanied by the bones of the pelvis, which I 

 compared, after being articulated, with the pelvis of the male Malay described by me in the 

 Challenger Reports a number of years ago.t For convenience of reference I give in the 

 following table the chief measurements of the two specimens : — 



Measurements of Pel 



ves 



of Malays. 





Breadth, ...... 



Perak. 

 256 mm. 



Challenger. 

 235 mm. 



Height, ..... 









198 



200 



Breadth- Height Index, . 









77-1 



85 



Between ant. sup. iliac spines, 



,, post. ,, „ ,, 

 Vertical diameter obturator foramen, 









240 

 81 

 51 



193 

 69 



55 



Transverse ,, „ ,, 









34 



34 



Obturator Index, • 









66-6 



62 



Subpubic angle, .... 

 Transverse diameter pelvic brim, . 









65* 



122 



76° 

 110 



Conjugate, „ ,. „ . 

 Pelvic or Brim Index, . 









104 

 85-2 



116 



105 



Between inner borders ischial tubera, 









11 



109 



Depth of pubic symphysis, . 



,, pelvic cavity, 

 Length of sacrum, 









38 



85 



111 



42 

 100 

 112 



Breadth ,, ... 









107 



106 



Sacral Index, .... 









96-4 



95 



The Perak pelvis was broader and the muscular processes and ridges were somewhat 

 stronger than in the pelvis described in the Challenger Reports. The iliac fossae were 

 not translucent, and the alse were more expanded and more directed outwards than in 

 the Challenger specimen, in which the alas approached in their direction nearer to the 

 vertical. In the Perak pelvis the subpubic angle was 65°, and was more in accord with 



* The mean capacity of the crania of seventy-three Scotsmen, taken by the same method, was 1478 c.c. See my 

 memoir on Scottish Crania in Trans. Roy. Soc. Edin., vol. xl. p. 601, 1903. The capacity measured by the method 

 of Broca is in excess of the actual capacity. 



t Zoology, part xlii. p. 18, 188G. 



