ig6 
FASCICULI MALATENSES 
The Nawngchik specimen, judging from the condition of the teeth* 
represents an i nfant of less than two years old, the first molar (milk dentition) 
having not yet completely pierced the surface of the jaw. Unfortunately, the 
specimen is very imperfect, in a fragmentary condition • the bones have 
become separated from one another, some of them have disappeared, and they 
are so distorted, probably owing to the processes of decomposition, that it is 
impossible to fit them together again. Nevertheless, they show some interesting 
features. 
In the first place, the occipital bone is very nearly vertical, and, 
undoubtedly, points to a very high degree of brachycephaly, while the 
parietals have evidently bulged out considerably on each side of the head 
almost at its posterior termination, arguing a wedge-shaped form in the norma 
verttcalis and also pointing to brachycephaly. The floor of the nasal aperture, 
which hardly differs from that in the Siamese youth’s skull from the same 
locality, is of the true infantile type. The degree of prognathism present and 
the height of the body of the lower jaw, in which the symphysis is almost 
complete, probably differ less front the conditions of the adult jaw of the same 
race than would be the case in Europeans. 
The child’s skull from Patalung appears to represent an individual of 
between eight and ten years old. The skull is fully ossified, with the exception 
of the occipital condyles and the junction between the basilar process of the 
occipital and the body of the sphenoid ; the second molar is just commencing 
to appear, but has not yet completely made its way through the bone to 
the surface. 
In the norma verttcalis the skull has a very characteristic wedge-like 
form, very different from that of the adult Siamese skulls, but probably 
resembling that of the infant from Nawngchik ; the outline is practically a 
broad-based isosceles triangle, truncated at the apex in the front, and the cephalic 
index is very high,^9*7, considerably higher than that of any other specimen 
in the whole of our collection, though there is no trace of artificial distortion. 
The parietal eminences are strongly developed, as might be expected, 
and the post-parietal slope is abrupt. The occipital squama is convex out¬ 
wards, but its arc has a long radius ; the nuchal plate is bent on itself at an 
angle approaching a right angle, and more than half of its length ascends above 
the point at which the skull commences to slope inwards towards the foramen 
magnum, the plane of which is less horizontal than the adult skulls. The mastoid s 
are very little more feeble than in an adult female skull, No. 26. The nose 
is extremely fiat, the alae are broadly expanded, and the floor of the cavity has 
the ape-like outward and downward slope, noted in the youth’s skull from 
