The vault of the skull among Indians is frequently more or less arched
or keeled, indicating strong development of the temporal muscles.
This characteristic is of course much more frequent and pronounced in
the males than in the females. The Munsee, it will be seen, show no
exception in this respect. The elevation of the sagittal region is
present in nearly all the males, although it is seldom pronounced.
Among the females nearly half are without sagittal elevation, while in
the remainder this feature is only slightly developed.