662 TOKUYASU KUDO 
The breadth muscle of the two sides amounts to 10 mm. in 
Japanese; the smallest breadth is as follows: 
Japanese: 6.6 (4 to 10) mm. (Kudo). 
Chinese: right 4, 6 mm.; left 4, 5 mm. (Kudo). 
European: left 3, 3 mm. \Gaadove 70.4 mm. (panda 
Negro: 5.4 os to 9) mm. (Chudzinski.) 
M. occipitalis (figs. 1, 2, and 4 to 8) 
This muscle is represented in Mongolians by a strong, coarse- 
bundled plate, which has varying outlines—often elongate quad- 
rangular, more commonly triangular or lunate or somewhat 
notched. Chudzinski has not given accurate details for his 
material as to the measurements of this muscle. I have taken 
measurements as follows: 
Depth (in front*): 
Japanese (Kudo): 25.1 (12 to 37) mm. 
Chinese (Kudo): right, 19, 18; left 18, 21, 21 mm. 
European (Kudo): right, 21, 14; left, 16, 20, 22, 27 mm. 
European (Chudzinski) : 21 and 22 (17 to 28) mm. 
Depth (behind) : 
Japanese (Kudo): 28.5 (16 to 46) mm. 
Chinese (Kudo): right, 18, 23, 30; left, 23, 30, 23 mm. 
European (Kudo): right, 18, 23, 30; left, 16, 24, 25, 24, 
23 mm. 
European (Chudzinski): 27.7 mm. 
Greatest depth: 
Japanese (Kudo): 34.6 (23 to 53) mm. 
Chinese (Kudo): right, 33, 37; left, 31, 33, 36 mm. 
European (Kudo): right, 29, 38, 33, 46; left, 29, 35, 31 
23mm. 
European (Chudzinski) : 32.6 mm. 
Negro (Chudzinski) : 37 (34 to 47) mm. 
6 T have measured the depth of the front and hinder sections of the muscle at 
about 5 mm. from the marginal bundles of either side and parallel to the course 
of the fibers. 
