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 beijerinckii Coesel,
cell body 44 μm long, 7 μm wide, L/W=6.3,
x 640, Koigakubo marsh, Tessei-cho, Okayama Pref., Japan, November 22, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640