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Lumbreras, La Rioja, Spain
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Gerona, Castille and Leon, Spain
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Portrait of Cyclidiopsis acus (Korschikoff, 1917), a colorless euglenoid flagellate. Similar in general morphology to Euglena acus but without plastids. Flexible but not metabolic. Swims or glides slowly. One short emergent flagellum less than one quarter body length. The pale orange stigma is visible here at the junction of the anterior apical canal and the reservoir. The contractile vacuole is posterior to the reservoir. Multiple long, needle-shaped paramylon bodies are visible in the cytoplasm. From standing freshwater. Boise, Idaho.June 2005.DIC.
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Portrait of Cyclidiopsis acus (Korschikoff, 1917), a colorless euglenoid flagellate. Similar in general morphology to Euglena acus but without plastids. Flexible but not metabolic. Swims or glides slowly. One short emergent flagellum less than one quarter body length. The pale orange stigma is visible here at the junction of the anterior apical canal and the reservoir. The contractile vacuole is posterior to the reservoir. Multiple long, needle-shaped paramylon bodies are visible in the cytoplasm. From standing freshwater. Boise, Idaho.June 2005.DIC.
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SEM, various cells.
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SEM of dividing cell.
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Scanning electron micrograph of anterior end.
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Cyclidiopsis (sigh-clid-ee-op-sis) is a colourless heterotrophic euglenid, but is unusual in that it has an eyespot seen just below the vacuole-like reservoir. The refractile elements inside the cell are polysaccharide storage granules (paramylon) Elongate, anterior slightly trumpet-like with one emergent flagellum. Not often encountered. Differential interference contrast.
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Cyclidiopsis (sigh-clid-ee-op-sis) is a colourless heterotrophic euglenid, but is unusual in that it has an eyespot. Elongate, anterior slightly trumpet-like with one emergent flagellum. Not often encountered. This is a dividing cell. Phase contrast.
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Cyclidiopsis (sigh-clid-ee-op-sis) is a colourless heterotrophic euglenid, but is unusual in that it has an eyespot. Elongate, anterior slightly trumpet-like with one emergent flagellum. This image is to show the beat pattern of the flagellum. Not often encountered. Phase contrast.
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Cyclidiopsis (sigh-clid-ee-op-sis) is a colourless heterotrophic euglenid, but is unusual in that it has an eyespot. Elongate, anterior slightly trumpet-like with one emergent flagellum. Not often encountered. This cell has just been eaten by a ciliate. Phase contrast.