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| Colacium vesiculosum, a sessile euglenoid flagellate |
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| Colacium vesiculosum, epibiontic on Cyclops, size of the cells about 20µ. |
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| Colacium vesiculosum, crop of the above image. Red arrowheads: spiral-shaped pellicula; blue arrowheads: pyrenoids. |
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| Colacium vesiculosum, during the mobile phase the cells have a flagellum which is reduced when the transition to the sessile form happens. The sessile forms of C. vesiculosum have a stalk of gelatinous consistency. This specimen had still a flagellum which could be recognized by the movement yellow arrowheads) |
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| Colacium vesiculosum, epibiontic on the rotifer Keratella cochlearis (22.05.2006) |
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| Location: Gevelsberg, Grünes Klassenzimmer, Teich |
| Habita: Plankton |
| Date: 6.6.2010 |
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