portrait, uroid
Filamoeba (file-a-me-ba) small free-living amoeba, with filamentous uroid, (bottom). Central nucleus with nucleolus, and with a contractile vacuole being formed by the fusion of several smaller vesicles to the left. Phase contrast. This picture was taken by David Patterson, Linda Amaral Zettler, Mike Peglar and Tom Nerad from cultures and other materials maintained at the American Type Culture Collection during 2001. Image copyright: D. J. Patterson, L Amaral-Zettler, M. Peglar and T. Nerad, image used under license to MBL (micro*scope).
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Filamoeba
From the collection
American Type Culture Collection
| Description of Filamoeba: Cells flattened, fan-shaped, and sometimes with an elongate posterior giving the cell a spatulate outline, between 15 and 50 µm in length. Occasionally with two or more hyaline lobes. Clear, thin, filopodia, up to 10 µm long, extend from the hyaline edge. These can be branched at their base but are never anastomosing. Cytoplasm with 15 or more small contractile vacuoles. Cysts smooth and round, oval or irregular in shape with a relatively thick wall. Single species described from freshwater, F. nolandi Page, 1967. Ref: Page (1967). |
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