 
 
|  Genus: Species: | 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
Gyrosigma sp., 
cell body 59 μm long, 12 μm wide, 
x 400, x 640, x 640, Saitama Pref., May-June 1999 by Y. Tsukii
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400 :
 150 μm; x 400 : 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
Gyrosigma sp., 
cell body 53 μm long,  μm wide, 
x 640, Saitama Pref., May-June 1999 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
