102 
FASCICULI MALATENSES 
skulls from Bangkok with which I have compared them* Their differences 
from the Malay specimens from the Patani States may not be altogether 
fortuitous* though I believe that the latter are both extreme types, while the 
present specimens probably approximate more nearly to the mean allowances 
being made for the artificial treatment which one of them has probably 
undergone. Their differences inter se appear to be due partly to this artificial 
treatment, and partly to sex. 
Nos. 2 5-30, Siamese> Nawngchik Town , Nawngebih 
Of the four perfect skulls from this locality three are female and adult, 
while the fourth is that of a person too young to admit of a diagnosis of sex ; 
judging from the size of the cranium and the weight of the skull, I am inclined 
to regard it as male. Of the adult specimens No, 25, though fully adult, is 
evidently young ; the bones are remarkably light and translucent, and the 
sutures are all open, but the junction between the basilar part of the occipital 
and the body of the spenoid is quite obliterated. No. 26, judging from the 
condition of the lower jaw, represents an elderly person, while No. 27 is 
probably the skull of an individual in middle life. No. 29 has the second 
molar just appearing on both sides of the upper jaw. In all the bones are thin. 
Norma verticals. 
In the four specimens the outline in this aspect is ovoid, somewhat 
truncated behind in No. 27. Nos. 25, 27, and 29 are phaenozygous, No. 26 
cryptozygous ; in No. 25 part of the mandible is visible from above, but it is 
completely concealed in the other skulls. The lambda cannot be seen in the 
norma vertical!s except in No. 29, though it is very nearly within the plane of 
vision in the other specimens. The cranial vault is nearly flat in No. 27, and 
but feebly arched in Nos. 25, 26, and 29. In Nos. 26 and 29 the frontal 
longitudinal arc is the longest ; in No. 27 the parietal ; while the presence of 
Wormian bones in the lambda of No. 25 renders it impossible to separate the 
parietal from the occipital arc, but these two arcs taken together are consider¬ 
ably shorter than twice the frontal. The cephalic index in the three adult 
specimens only varies from 78'8 to 80, while that of the young specimen is 
also 80. 
Norma lateralis. 
The post-parietal and occipital slopes are those of normal sub-brachi- 
cephalic skulls, except m No. 27, in which it is strictly of a true brachycephalic 
nature. In all four specimens, and especially in Nos. 25 and 27, the occipital 
squama is markedly convex outwards, and in the three adult skulls the nuchal 
