Species: Cell body medium in size, slightly curved, centrally straight, gradually tapered toward ends,
both ends truncated with rounded corners, 163-(190-350) μm long, 8-(8.4-13)-20 μm wide,
L/W = 25-32; cell wall smooth, bands absent; chloroplasts with 5-7 pyrenoids
(Illustrations of The Japanese Fresh-water Algae, 1977).
Closterium toxon W. West,
cell body 260 μm long, 9 μm wide, L/W=28.9,
x 400, x 640, No.1, Omotsubo marsh (omotubo marsh, Suzuran-no-sono), Tetta-cho, Niimi city (formerly Tetta cho), Okayama Pref., Japan, September 23, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.1, Omotsubo marsh (omotubo marsh, Suzuran-no-sono), Tetta-cho, Niimi city (formerly Tetta cho), Okayama Pref., Japan, September 23, 2006 by Y. Tsukii