FASCICULI MJLATENSES 
109 
to indicate the degree to which these two peculiarities of the femur are 
developed, because I find that the measurements often depend on the relative 
breadth and depth of the main body of the shaft* irrespective of any local 
ridge or flattening. In the upper extremity of the bone* the extensor area 
of the neck is not strongly marked in any specimen ; a third trochanter is 
present in Nos. 23, 24, and 27, and the anterior intertrochanteric line, while 
strong in Nos. 23 and 24, and fairly strong in Nos. 26, 27 and 28, is feeble* 
except in the upper third of its length* in Nos. 21 and 25. 
The tibiae of the seven adults show a fine gradation from well-marked 
platycnemy to almost the opposite condition* for in Nos. 23 and 24 the shaft 
of this bone is definitely sabre-shaped in the anterior view* though there is 
no great lateral compression on the posterior surface ; while in the other 
individuals this character is less and less marked, until in No. 26 it is practically 
absent ; the measurements and indices are given in the general table. In the 
young skeleton from Lampam the cross-section of the tibia more closely 
approaches the circular than in that of any adult specimen in our series* but 
owing to the action of the weather on the surface of the bone exact measure¬ 
ments cannot be given ; the retroversion of the head of this bone, though 
patent, is not so strongly marked as in the adults* in which it is very pronounced. 
Pelvis. 
There are three adult male and four adult female pelves in our 
series. With the exception of two specimens (Nos. 23 and 24)* which only 
reach moderate dimensions, they are extremely small and compact* barely 
equalling those of the jungle tribes in size. This fact* taken in connexion 
with the shortness of the limb bones in all the skeletons but those of these 
same two individuals, would seem to indicate that the remaining five persons 
represented in the collection were below the average stature of the Malayo- 
Siamese, as one of the most noticeable differences of figure between this race 
and the jungle tribes is the superior breadth of the hips in the former and the 
extent to which the upper part of the body is developed* relatively to the 
hips, in the latter. 
Considering first the three male pelves* the most remarkable features 
they present are the straightness of the sacra and the great variation in the 
shape of the brim* and consequently in the pelvic or brim index, A Malay 
specimen (No. 21) and a Siamese specimen from Sai Kau (No. 23) agree in 
being dolichopellic, while No. 28 from Nawngchik town is very highly platy- 
pellic indeed, its index being well below 70, The breadth-height index, how¬ 
ever, only varies from 76*2 to 80*9* with a moderately high mean of 78*7, 
