Species: cell body medium in size, slightly shorter than its width, bay closed,
41-43 μm long, (35)-38 μm wide, isthmus (11.5)-14 μm wide;
semicells pyramidal in shape with truncated apex, basal corners rounded, lateral margins slightly convex;
cell wall covered with many granules arranging radially at periphery of the semicells, central region smooth
(Illustrations of The Japanese Fresh-water Algae, 1977).
|
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Cosmarium vexatum W. West,
cell body about 46 μm long, 39 μm wide, constriction 13 μm wide,
1998, x400, x 640, by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
