Description: Specimen of approx. 60 x 25 Ám size. Pseudopodia with well visible adherent rods. The anterior flagellum connected to what probably is the basal body, which is located
directly in front of the partly shown nucleus (better visible in downloadable tiff-image). The observed cell moved by gliding rather then swimming, the movement of the flagellum without much influence. Specimen was found in the bottom detritus of a polysaprobic pond with the slight smell of H2S. The sample also contained specimens of the genus Pelomyxa.
This image was provided by Dr. Dr. Josef Brief. Image copyright: Dr. Dr. Josef Brief, image used under license to MBL (micro*scope).
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From the collection
Freshwater protists of ponds and sphagnum near Frankfurt, Germany
|Description of Mastigamoeba aspera: Cell oval when extened, depressed, pointed anteriorly. Pseudopodia cylindrical, unbranched, digitiform, diverging in somewhat regular order from the lateral margins of the periphery, those at the posterior end of the cell shorter than the others, emitting extremely fine ray-like sarcodic projections. Flagellum issuing from the pointed anterior end, about equal in length to the cell; entire external surface, including more especially the pseudopodia, beset with exceedingly minute refringent rod-like structures which communicate to it a hispid aspect. Two contractile vacuoles, situated near the posterior end. A subspheroidal ennucleus-like structure developed anteriorly; cytoplasm enclosing numerous reddish-yellow spherules and colourless granules. Length of cell 100-169 microns |