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Click on images for larger format |
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Name derivation: |
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“Unequal flagella” Gr. Aniso- unequal, -nema thread |
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Classification: |
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Anisonema Dujardin 1841; 21 of 60 species descriptions are currently recognized (Guiry and Guiry 2013).Order Euglenales; Family Peranemataceae
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Morphology: |
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Colorless biflagellate phagotroph, flattened ovoid shape. Two unequal length flagella, the shorter propelling the cell, the longer one trailing and up to 3x the cell length. Anterior flagellum beats with a sweeping motion. Gliding movement interrupted by backward jerks. No ingestion organelle is visible with the light microscope. Reservoir on left side of cell (Larsen and Patterson 1990).
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Similar genera: |
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Heteronema |
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Habitat: |
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Full spectrum of salinities from freshwater and brackish to marine. |
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References: |
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Guiry, M.D. and G.M. Guiry 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 30 April 2013. Larsen, J. and Patterson, D. J. 1990. Some flagellates (Protista) from tropical marine sediments. Journal of Natural History. 24:801-937. |
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