Closterium intermedium Ralfs var.intermedium,
cell body 305 μm long, 26 μm wide, L/W=11.7,
x 640, Kareki-numa marsh, Nikko city (formerly Fujiwara town), Tochigi Pref., Japan, September 24, 2008 collected by Eizaburo Tsukii, photo by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640