Studies on genera Mallomonas and Synura, and other plankton in freshwater with the electron microscope X. The genus Paraphysomonas (Chrysophyceae) in Japan

Abstract

Paraphysomonas vestita (Stokes) de Saedeleer, P. butcheri Pennik et Clarke, and two new species were found in Japanese freshwaters. This is the first record of P. butcheri in freshwater and a new record for Japan. The two new species are named P. bandaiensis and P. inconspicua, and are respectively the second and third species of this genus from freshwater.