Chapter LXXI: Female Indian Pelvis: Superior Strait88

----------------+-----------+-----------+----------+------
| | Diameter | |
Group | Specimens | antero- | Diameter | Index
| | posterior | lateral |
----------------+-----------+-----------+----------+------
| | _cm._ | | _cm._
Northwest coast | (31) | 12.99 | 10.7 | 82.39
California | (16) | 13.2 | 10.56 | 80
Sioux | (12) | 13.03 | 10.98 | 84.26
Tennessee | (6) | 13.32 | 10.93 | 82.01
Kentucky | (8) | 13.09 | 10.66 | 81.42
New Mexico | (10) | 13.26 | 10.43 | 78.65
Arizona | (57) | 12.87 | 9.52 | 74.01
Mexico | (15) | 12.71 | 10.93 | 85.55
Peru | (13) | 12.71 | 10.12 | 79.58
----------------+-----------+-----------+----------+------

[88] Emmons’s series

SHORT AND OTHER BONES

PATELLA

The patella, the largest of the sesamoid bones, offers three dimensions for measurements, namely, the maximum height, the maximum breadth, and the maximum thickness; and the mean of these diameters, the _patellar module_, is a convenient unit for comparing the size of the bone.

The 30 patellæ present in the Munsee collection give proportions which are tabulated below. The male bone is perceptibly larger in all dimensions than the female. There are but small differences as to side, and they are probably due in a measure, if not entirely, to the small number of specimens. The mean diameter or module is practically the same on both sides in both the male and the female. The breadth-height index averages slightly over 100 and offers nothing definitely distinctive either as to sex or to side. It varies in males from 91.7 to 107.4, in the females from 93.8 to 107.9.