Genus: Greater part of axopodia and cell body covered by a thick gelatinous mantle (Kudo, 1966).
Species:
Sphaerastrum sp. ?,
cell body 29-31 μm in diam., coat about 6 μm in thickness,
x 640, Onnenai, Kushiro marsh, Kushiro city, Hokkaido, Japan, October 16, 2005 by Y. Tsukii 31 μm
63 μm
94 μm; x 640
Genus: Greater part of axopodia and cell body covered by a thick gelatinous mantle (Kudo, 1966).
31 μm
