Genus:
Cell body cylindroid or spindle in shape; spiral ribbon-like chloroplasts or laminae of
the chloroplast arranged spirally around central rod
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species :
Spirotaenia erythrocephala Itzigsohn,
cell body 67 μm long, μm wide,
x 640, Namegawa town, Saitama Pref., Japan, August 2003 by Y. Tsukii
50 μm
100 μm
150 μm; x 400