Genus: With a vase-like chitinous lorica to which stalked or stalkless organism is attached; fresh or salt water; numerous species (Kudo, 1966). Transparent; ovoid; collar indistinct; in lorica (How to know the protozoa, 1979). Solitary or colonial; with firm lorica (theca) as a cup or tube; protoplast with 1 anterior flagellum encircled laterally by well-developed collar; contractile vacuoles posterior in fresh water species (Illustrated Guide, 1985).
Species:

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S. buetschlii lorica 19 μm long Japan, 199?	S. buetschlii lorica μm long Omiya Saitama, 2001	S. buetschlii lorica 16 μm Japan, 199?	S. buetschlii lorica 16 μm Japan, 1999
S. buetschlii lorica μm Kanazawa Ishikawa, 2002	S. buetschlii lorica 16 x 7 μm Igashira park Mooka Tochigi, 2004	S. buetschlii lorica 16 x 8 μm Shimo-kawahara p. Sayama Saitama, 2005	S. buetschlii lorica 15 x 7 μm Nagaike park Hachioji Tokyo, 2005
S. buetschlii lorica 17 x 8 μm near Shide-numa Kita-kawabe Saitama, 2005	S. buetschlii lorica μm a pond Kashiwa Chiba, 2008

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