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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 140 μm long, 108 μm wide, L/W=, pseudostome μm wide, x 400, x 640, a small pond at Nagaike park, Hachioji city, Tokyo, Japan, April 6, 2005 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
Lesquereusia Lesquereusia Lesquereusia Lesquereusia

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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