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Euglenophyceae: Euglenales
Euglenida:

Strombomonas fluviatilis
(Lemmermann) Deflandre

Strombomonas borysteniensis Genus: Lorica has constricted neck instead of collar; lorica smooth; many species (How to know the protozoa, 1979).
Species: Lorica broad spindle-shaped or ellipsoidal, collar cylindrical, surface smooth, 28-38 μm long, 12-17 μm wide, lorica opening slanted (Illustrations of the Fresh-water Algae, 1977).
Similar genus -->> Trachelomonas;

Strombomonas fluviatilis (Lemmermann) Deflandre, lorica μm long, μm wide, long neck, posterior pointed (or tapered), x 640, Higusa-numa (swamp), Miyakawa, Hikari town, Chiba Pref., Japan, September 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Strombomonas fluviatilis Strombomonas fluviatilis Strombomonas fluviatilis

Trachelomonas (Strombomonas) fluviatilis (Lemmermann) Deflandre: Lorica broad spindle-shaped or ellipsoidal, collar cylindrical, surface smooth, 28-38 μm long, 12-17 μm wide, lorica opening slanted (Illustrations of the Fresh-water Algae, 1977).

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