Statistics on the Musculature of the Japanese
Masaru Mori · Okajimas Folia Anatomica Japonica · 1964
From this table we can calculate that the pyramidalis absents in about 5-6% and presents in 95-94% in Japanese.If the percentage of the presence of the pyramidalis is compared with that of many races the following table is made : (from L o t h's table) From this table 1 can see that the percentage of the absence of the pyramidalis of Japanese is smaller than that of the other races.