Approximately spherical cells embedded in a mass of jelly, lacking whip-like flagella, and not connected by threads
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Cells grouped in 2s and (especially) 4s, in a mucilaginous sac; pseudoflagella present (may be difficult to see).
Tetraspora-like colonies -
Spherical cells in mucilaginous colonies; crescent-shaped remains of mother cell walls are retained within the colony.
Schizochlamys