Abstract
In Japan Daphnia galeata SARS has been confused for a long time with Daphnia hyalina or Daphnia longispina due to the confusion in Europe where the three species originally described. In this paper, the Daphnia species from Lake Biwa and Lake Kizaki, which has been assigned various scientific names, are confirmed as Daphnia galeata SARS, 1863, based on the determinative key proposed by FLOBNER and KRAUS (1986), and their morphology and morphological variations are described.
