MALES
---------+------+---------------+--------+---------+----------
| | Total | | |
|Number|length (less |Greatest|Sternal |Maximum
|of |xiphoid and |breadth |Index |thickness
|bones |episternals)[70]|of body |(b×100)/a|of body
| | (a) | (b) | |
---------+------+---------------+--------+---------+----------
Average: | | _cm._ | _cm._ | | _cm._
Paired | (6) | 15.7 | 3.7 | 23.8 | 1.2
All | -- | 15.7 | 3.7 | 23.8 | 1.2
Minima | All | 14.6 | 3.4 | 21.1 | 1
Maxima | All | 17.5 | 4.2 | 25.8 | 1.3
---------+------+---------------+--------+---------+-----------
FEMALES
---------+------+---------------+--------+---------+----------
Average: | | | | |
Paired | (6) | 13.8 | 3.5 | 25.7 | 0.9
Average| All | 13.8 | 3.5 | 25.7 | 0.9
Minima | All | 12.8 | 2.8 | 21.5 | 0.8
Maxima | All | 16.2 | 3.9 | 30.5 | 1
---------+------+---------------+--------+---------+----------
[70] Where present and attached to upper sternal tubercle (three
instances).
As to the rib facets, two of the 11 sterna in which the notches can
be counted show seven on each side; in female skeleton no. 285,307,
with normal number of ribs, there are seven notches on the right and
but six on the left; in female no. 285,311, with 24 regular ribs and
a right cervical, there are six facets on the right and seven on the
left, and all the facets on the right side are situated perceptibly
higher than those on the opposite side of the bone; in four instances
there are six facets on each side; in two (male no. 285,301 and
female no. 285,330, the former with the normal number of ribs and the
latter uncertain) the sternum shows six facets on the right and but
five on the left side; finally, in female no. 285,310, with 24 ribs,
we find but five sternal facets on each side—this subject, however,
was not fully adult. These details show that there are considerable
irregularities in the sternal facets among the Munsee, even in the
presence of the normal number of ribs.
The antero-posterior curvature of the Munsee sternum ranges from slight
to moderate. The xiphoid appendix is attached to the body of the
sternum in only one instance—a male. In one male (no. 285,314) the left
clavicular facet is considerably larger than the right.
Three of the male and one female sterna show on one or both sides
attached episternal tubercles. In three of the cases the anomaly is
unilateral—twice left and once right—while in one of the males it is
bilateral, but the tubercle is more pronounced on the left.
The breadth-length index of the sternum shows considerable individual
variation in both sexes, but on the average it is higher in the
females, the bone in this sex being relatively shorter.