Abstract
The holotype of Natatolanajaponensis (Richardson, 1904) is redescribed and re-illustrated. New figures of paratype specimens of Natatolana miyamotoi Nunomura, 1991 are also presented. Comparison of the type material of the two nominal taxa indicates that there are no significant differences between them and N. miyamotoi is a junior subjective synonym of N. japonensis. This reduces the number of species of Natatolana recorded from Japan to two, N. japonensis and N. albicaudata (Stebbing, 1900).
