Genus: When extended, trumpet-shaped or cylindrical; highly contractile; some with mucilaginous lorica; conspicuous peristomal field frontal; contractile vacuole anterior-left; fresh water (Kudo, 1966).
Species: Cell body slenderly trumpet shaped, 200-500 μm long when fully extended; macronucleus a single bead; cortical granules azure to sea green; withtout symbiotic algae (Foissner and Wölfl, 1994).
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S. multiformis ?
cyto. green
oval mac.
Higashi-hiroshima
Hiroshima, 1998
S. multiformis ?
cyto. green
oval mac.
109 μm
Japan, 1998
