taisei

The army corps differed numerically according to the extent of the province where they had their headquarters, but for each thousand men there were one colonel (taiki) and two lieutenant-colonels (shoki); for every five hundred men, one major (gunki); for every two hundred, one captain (koi); for every one hundred, a lieutenant (ryosui), and for every fifty, a sergeant-major (taisei).

A History of the Japanese People From the Earliest Times to the End of the Meiji Era Dairoku Kikuchi 1886