Euglypha (you-gligh-fah) filifera has an elongate shell that is composed of oval siliceous scales. The 15 micron long spines pointed out from the entire lateral edge of the shell. Image of Euglypha filifera lorica. The denticulate scales which border the circular aperture are visible. Each plate is measuring 6 X 8 microns on average. Differential interference contrast. This picture was taken by Martin Kreutz using an Olympus microscope. Image copyright: Martin Kreutz, image used under license to MBL (micro*scope).
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From the collection
Freshwater ponds of Konstanz (Germany)
|Description of Euglypha filifera: Testate amoeba, the lorica is ovoid, slightly compressed, and composed of about one hundred and fifty oval shell-plates. Siliceous spines project from the lateral margins, usually in the aboral half of the shell. These spines are long, thin and may be single or in groups of two or three. The aperture is circular and surrounded by eight to eleven apertural-plates. Each apertural-plate is oval, thickened at the denticulate margin, has a large median tooth and two smaller lateral teeth on each side. Variation appears to be restricted to the location of the spines. Shell length 53-70 microns, shell width 25-35 microns, diameter of aperture 10-14 microns, shell-plates length 8.6-10.8 microns, shell-plates width 4.5-5.4 microns, apertural plates length 8.0-9.3 microns, apertural plates width 4.9-5.4 microns, length of elongated shell-plates 13-23 microns. |