|  Species: 
Cells 82-92 μm long, 
16-22 μm broad; 
moderately to strongly metabolic; elongate-fusiform to cylindrical, anterior end truncated to rounded, 
posterior end swelling slightly and constricted into a short non-hyaline cauda, 
2-4 μm; 
periplast spirally striated; 
chloroplast numerous, without pyrenoid, discoid, parietal, distribute at the posterior portion of cell; 
paramylon grains very numerous, rod-shaped or discoid, locate at the anterior portion of the cell; 
nucleus spherical, 5-9 μm in diameter, 
located at the back portion of the cells; 
locomotory flagellum one half body length, 42 μm; 
eyespot curved lamella-shaped, with the convex face outward , prominent, red to orange color, 
2.5 μm in diameter. |