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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 156 μm long, 12 μm wide, L/W=13.0, x 640, Akebono marsh (or bog), Nidanuma (Nitanuma), Tsuchiyu-onsen, Fukushima city, Fukushima Pref., Japan, October 28, 2005 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 Cyclidiopsis acus Cyclidiopsis acus
Cell body 160 μm long, 14 μm wide, L/W=11.4
Cyclidiopsis acus Cyclidiopsis acus
Cell body 150 μm long, 14 μm wide, L/W=10.7
Cyclidiopsis acus Cyclidiopsis acus
Cell body 165 μm long, 12 μm wide, L/W=13.8
Cyclidiopsis acus Cyclidiopsis acus
Cell body 158 μm long, 8 μm wide, L/W=19.8
Cyclidiopsis acus Cyclidiopsis acus Cyclidiopsis acus


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