 
 
|  Genus: Similar to Ochromonas, but colourless; 
cells ovoid, free-swimming, or attached by a protoplasmic thread, or mutually attached to form 
spherical colonies; 1 contractile vacuole (Illustrated Guide, 1985). Species: 
 | 
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400
 150 μm; x 400
 
