--------------------+--------------+---------------
| 10 males | 12 females
+-----+--------+-----+---------
|Cases|Per cent|Cases|Per cent
--------------------+-----+--------+-----+---------
Large (masculine) | 1 | 10 | — | —
Medium (masculine) | 6 | 60 | 1 | 8
Submedium (feminine)| 3 | 30 | 11 | 92
--------------------+-----+--------+-----+---------
In one of the females (no. 285,309) the apex of the left mastoid
is bifid. Well developed cases of this anomaly are rare; there are
only three or four other Indian crania in the large collections of
the United States National Museum in which it is well represented.
In another female specimen (no. 285,304) the right mastoid shows a
peculiar, marked indentation in the middle of its dorsal surface, with
a groove extending therefrom upward and backward and downward and
backward.