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Ancyromonas (ank-ire-owe-moan-ass), small heterotrophic gliding flagellate, with two flagella of which only one (the recurrent flagellum) is evident here. The recurrent flagellum emerges from behind a bulbous lobe at the front of the cell. Not uncommon, but in cooler locations within the thermal Phase contrast. Material from heated thermal sites of Nymph Creek and Nymph Lake in Yellowstone National Park, photograph by Kathy Sheehan and David Patterson.
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Ancyromonas (an-kire-o-moan-ass), gliding flagellate. With a anterior lobe like that of a sea-lion (but smaller), one flagellum extends posteriorly. the other is absent or very fine, and can be seen emerging from an anterior depression in the cell. Phase contrast.
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Ancyromonas (an-kire-o-moan-ass), gliding flagellate. With a proboscis like that of a sea-lion, one flagellum extends posteriorly. the other is absent or very fine, and can be seen emerging from an anterior depression in the cell. Very widespread and common, seems to occur almost anywhere where there is water and food. Phase contrast.
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Ancyromonas (an-kire-o-moan-ass), gliding flagellate. With one flagellum extends posteriorly. the other is absent or very fine, and can be seen emerging from an anterior depression in the cell. Very widespread and common, seems to occur almost anywhere where there is water and food. Phase contrast, rotten picture.
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Ancyromonas (an-kire-o-moan-ass), gliding flagellate. With a proboscis like that of a sea-lion, one flagellum extends posteriorly. the other is absent or very fine, and can be seen emerging from an anterior depression in the cell. Very widespread and common, seems to occur almost anywhere where there is water and food. Phase contrast.
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Ancyromonas sigmoides Kent, 1880. The cell outline is oval. Cells are 3 to 7 microns long, 2 to 3.5 microns wide and dorso-ventrally flattened. This species has a shallow groove ventrally near an anterio-lateral margin of the cell. The cells have a thin stiff anterior flagellum emerging from an anterior depression. The anterior flagellum can be easily overlooked and beats slowly. The posterior flagellum is about 1.5 times the length of the cell and may not be acronematic. The cells move by gliding with the posterior flagellum trailing.
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Transmission electron micrograph of a whole mount showing the longer trailing flagellum and shorter anterior flagellum.
