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Euglenophyceae: Euglenales
Euglenida:

Cyclidiopsis acus
Korschikoff 1917

Cyclidiopsis Genus: Only 1 flagellum emergent from canal, colourless; eyespot present; cell body semi-rigid, but can bend and loop; elongated, tapering; paramylon grains needle-like; several species, freshwater (Illustrated Guide, 1985).
Species: Long, thin, 120-210 μm long, 5-15 μm wide; cell glides when not swimming; eyespot pale orange; long paramylon needles (25-30 μm) (Illustrated Guide, 1985).
Similar species -->> Euglena acus


Cyclidiopsis acus Korschikoff, cell body 180 μm long, 6 μm wide, L/W=30.0, x 640, No.1, Ohyachi, Akita-Hachimantai, Kazuno city, Akita Pref., Japan, September 21, 2007 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Cyclidiopsis acus Cyclidiopsis acus
Cell body 175 μm long, 6.5 μm wide, L/W=26.9, x 400, x 640
Cyclidiopsis acus Cyclidiopsis acus
Cell body 176 μm long, 7 μm wide, L/W=25.1, x 400, x 640
Cyclidiopsis acus Cyclidiopsis acus Cyclidiopsis acus Cyclidiopsis acus


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