floating form
Neoparamoeba (knee-o-para-me-ba), naked amoeba, variable in appearance, with short or well developed pseudopodia arising from the hyaline cap. With a paranuclear body. Floating form. 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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Neoparamoeba
From the collection
American Type Culture Collection
| Description of Neoparamoeba: Locomotive form usually longer than broad, often between 10 to 25 µm in length. Many have longitudinal ridges which may give rise to anterior, blunt, conical subpseudopodia. Floating form with radiating pseudopodia. Nucleus spherical with one, two or three adjacent parasomes; supernumerary parasomes in some cells. Temporary morulate uroid. At ultrastructural level, surface coat as dense, amorphous glycocalyx, about 10 nm thick. Common in marine samples. One species found as a facultative parasite of sea urchins and another as a crustacean parasite. Type species: N. pemaquidensis (Page, 1970). |
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