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Lobosea: Testacealobosia: Arcellinida: Difflugina: Lesquereusiidae

Lesquereusia sp.
Schlumberger, 1835

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).

Lesquereusia sp. ?, test 110 μm long, 88 μm wide, L/W=1.3, pseudostome 25 μm wide, x 640, Sannoh-bori at Sannoh Park, Saitama city, Saitama Pref., Japan, September, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
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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