Abstract
The index-keys to the genera Trichocerca and Diurclla are given, and seven species belonging to the respective genus are described and figured.
Supplementarily, two species and one varieties of Rotifera are described, i, e., Lepadella patella, colurella tesselata and Brachionus angularis var. chelonis,
In addition, Keratella ccchlearis var. javana which was written in the seventh part of the “Rotifer Fauna of Japanese Inland Waters” has been described by Ahlstrorn (1943) as Keratella javana (Hauer) in new combination.
