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Lobosea: Testacealobosia: Arcellinida: Difflugina: Lesquereusiidae

Lesquereusia modesta
Rhumbler

Lesquereusia Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome at end of bent neck; test more or less coiled or folded (Illustrated Guide, 1985).
Species: Test 100 μm long, 80 μm wide (Cash, The British Freshwater Rhizopoda and Heliozoa vol. II, 1909).


Lesquereusia modesta Rhumbler ?, test 160 μm long, μm wide, x 400, x 640, Kaga city, Ishikawa Pref., Japan, November 2000 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
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Cell division or conjugation ?
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Ingesting algae
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Lesquereusia spiralis (Ehrenberg, 1840): 95-190 μm long, 75-150 μm wide, 50-100 μm deep; test like flask, neck against body; with secreted imbedded siliceous particles; pseudostome circular 30-50 μm diam.


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