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Lobosea: Testacealobosia: Arcellinida: Difflugina: Lesquereusiidae

 Lesquereusia gibbosa
Thomas & Gauthier-Liévre, 1959

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: 120-150 μm long, 100-140 μm wide; test with constriction at base of neck; pseudostome round, 28-35 μm long (Illustrated Guide, 1985).

Lesquereusia gibbosa Thomas & Gauthier-Liévre, test 130 μm long, 108 μm wide, L/W=1.2, pseudostome 30 μm wide, x 400, x 640, No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 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 gibbosa Lesquereusia gibbosa
Lesquereusia gibbosa Lesquereusia gibbosa Lesquereusia gibbosa Lesquereusia gibbosa

Lesquereusia gibbosa Thomas & Gauthier-Liévre ?, test 98 μm long, 80 μm wide, L/W=, pseudostome 24 μm wide, x 640, No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Lesquereusia gibbosa Lesquereusia gibbosa Lesquereusia gibbosa

Images of collecting locality: No.6, Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, April 15, 2007 by Y. Tsukii

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