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Lobosea: Testacealobosia: Arcellinida: Difflugina: Lesquereusiidae

 Lesquereusia spiralis
(Ehrenberg, 1840)

Lesquereusia spiralis 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: 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.

Lesquereusia spiralis (Ehrenberg, 1840), test 105 μm long, 85 μm wide, pseudostome 32 μm in diam., x 640, rice field, Higashi-sano (near Minami-kamishiro railway station), Hakuba village, Nagano Pref., Japan, October 3, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Lesquereusia spiralis Lesquereusia spiralis Lesquereusia spiralis Lesquereusia spiralis

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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