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Euglenophyceae: Sphenomonadales
Euglenida: Sphenomonadida

Notosolenus sinuatus

Notosolenus Genus: Free-swimming; rigid oval; ventral surface convex; dorsal surface with a longitudinal groove; flagella anterior; one long, directed anteriorly; the other shorter and trailing; fresh water (Kudo, 1966).
Species: Posterior end truncate or concave; about 22 μm long (Kudo, 1966). Wide lateral groove; second flagellum short, in groove, hard to see; resembles Petalomonas (How to know the protozoa, 1979).

Notosolenus sinuatus ?, cell body 14 μm long, 8 μm wide, x 640, Iruma river, Sayama city, Saitama Pref., Japan, January 25, 2004 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Notosolenus Notosolenus Notosolenus

N. apocamptus Stokes: Much compressed; dorsoventrally flattened; ventral face concave; 6-10 μm long, 5-6 μm wide, 3-4 μm thick; long flagellum straight during swimming, with minute waves at the tip (Illustrated Guide, 1985).

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