Species: 80-125 μm long, 10-35 μm wide; cylindrical; anterior end a little narrowed and rounded; posterior end drawn out; spiral striae, made up of small knobs; many discoid chloroplasts; two ovoidal paramylon (paramylum) bodies; flagellum about 1/4 the body length; sluggish (Kudo, 1966). 80-180 μm long. Several varieties: var. suprema 140-180 μm, var. marchica, 85-165 micron, var. abruptacuminata, 130-145 μm (How to know the protozoa, 1979). 45-250 μm long, 5-35 μm wide (Illustrated guide, 1985). Cell body 70-96 μm long, 10-14 μm wide, two large paramylon bodies ring-shaped (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).

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E. spirogyra small variety or similar species ?
E. spirogyra ? 125 x 24 μm knobs absent striae/10μm knobs μm Saitama, 2001	E. spirogyra ? 121 x 9 μm striae/10μm knobs μm Matsumoto Nagano, 2001	E. spirogyra ? μm striae/10μm knobs μm near Nan-ko Shirakawa Fukushima, 2003	E. spirogyra v.3 115 x μm striae/10μm knobs μm Tsuchiura Ibaraki, 2003
E. spirogyra v.3 102 x μm striae/10μm knobs μm Fujimi Saitama, 2003	E. spirogyra 100 x 12 μm 6 striae/10μm knobs 0.75 μm Kawashima or Kawajima Saitama, 2002	E. spirogyra μm striae/10μm knobs μm Naruto Chiba, 2003	E. spirogyra μm striae/10μm knobs μm Senjo-ga-hara Nikko Tochigi, 2003
E. spirogyra μm striae/10μm knobs μm Senjo-ga-hara Nikko Tochigi, 2003	E. spirogyra 100 x 9 μm striae/10 μm knobs μm Imou bog Toyohashi Aichi, 2004	E. spirogyra 100 x 10 μm striae/10 μm Hitotsugi Yoshimi Saitama, 2004	E. spirogyra 98 x 13 μm striae/10 μm Okubo Ryoke Akigase park Saitama, 2005
E. spirogyra 110 x 16 μm 130 x 11 μm drainage ditch Kawajima Saitama, 2006	E. spirogyra 112 x 13 μm Hasu-ike Mizumoto Park Tokyo, 2006
E. spirogyra μm striae/10μm knobs μm near railway station Shimotsuma Ibaraki, 2003	E. spirogyra μm striae/10μm knobs μm Motono Chiba, 2003	E. spirogyra 90 x 14 μm striae/10μm near Town Hall Shobu Saitama, 2004	E. spirogyra μm striae/10μm Kamishiro Hakuba Nagano, 2004
E. spirogyra 95 x 8 μm striae/10μm knobs μm Kugedo Saitama Saitama, 2005

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