Abstract
Eighty-five pairs of male and 76 pairs of female femurs of the Chubu Japanese were measured and compared with those of other Japanese groups, Korean and Sakhalin Ainu. The results show that among the Japanese groups the shaft is rather massive. In the neck, vertical diameter is shorter, but sagittal diameter is longer. The breadth of the lower extremity is larger, while torsion angle is smaller. Curvature of the shaft is stronger. According to the values of C2H using six measurements, it was found that in males the Kanto Japanese is the nearest to the present series, followed by the Middle Kyushu Japanese, Hokuriku Japanese, Kinai Japanese, Kyushu Japanese, Korean, Northwest Kyushu Japanese and Sakhalin Ainu.