Genus: Greater part of axopodia and cell body covered by a thick gelatinous mantle (Kudo, 1966).
Species: About 30 μm in diameter;
often colonial (Kudo, 1966).
Sphaerastrum fockei Greeff,
cell body spherical, μm in diam.,
x 400, Japan, 1997 by Y. Tsukii 50 μm
100 μm
150 μm; x 400
Genus: Greater part of axopodia and cell body covered by a thick gelatinous mantle (Kudo, 1966).
50 μm
