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 μm long, μm wide, L/W=,
x 640, No. 5, Miyatoko marsh, Minami-Aizu town, Fukushima Pref., Japan, June 15, 2008 by Y. Tsukii
31 μm
63 μm
94 μm; x 640