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:

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S. teliferum 36 x 31 μm Lake Shirakaba Tateshina & Chino Nagano, 2005	S. teliferum 37 x 33 μm Tane-ike Togakushi highland Nagano, 2005	S. teliferum μm Ko-numa 2 Minakami Gunma, 2008	S. teliferum μm Kannon-numa 11 Shimogo Fukushima, 2008
S. teliferum μm Kareki-numa Nikko Tochigi, 2008	S. teliferum or S. simonyi ? 22 x 21 μm J. Skunk Cabbage m. Tsugaike highland Nagano, 2005

Similar species --> > S. subteliferum (spines thick, long, few); S. hirsutum (spines thin, short, many); S. brebissonii (=S. pilosum); S. kouwetsii;

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