Genus: Cell body short, radiate in shape; apical view of the cell, triangular, polygonal, ellipsoidal or spindle-shaped; zygospores formed outside of mother cells (Illustrations of The Japanese Fresh-water Algae, 1977)
Subgenus: lacks arm-like projections (Illustrations of The Japanese Fresh-water Algae, 1977)
Species:
S. habeebense
Conjugation
38 x 38 μm
Fukasaku
Saitama, 2002
S. habeebense
40 x30 μm
Ushijima park
Kasukabe
Saitama, 2003
S. habeebense
43 x 30 μm
Tama river
Chofu
Tokyo, 2004
S. habeebense
40 x 27 μm
Kuritsubo
Hidaka
Saitama, 2004
S. habeebense
41 x 29 μm
Kinchakuda
Hidaka
Saitama, 2004
S. habeebense
40-45 x 28-32 μm
near Kurome River
Asaka
Saitama, 2006
S. habeebense
μm
near Kurome River
Asaka
Saitama, 2008