Lesquereusia bispiralis Thomas et Gauthier-Lièvre, 1959
Diagnosis: Neck with two septa. The neck is not cylindrical or conical, but abruptly bent, which causes a change in its direction: whereas at the beginning it followed the direction of the winding of the test, it is raised at an right angle, which gives it a distinctive and unusual appearance. The test is covered with quartz particles.
Dimensions: Length 300 µm; Width 170 µm; pseudostome 50 µm.
Ecology: Freshwater. Africa.
Reference: Thomas, R. et Gauthier-Lièvre, L., 1959: Le genre Lesquereusia Schlumberger 1845 (Rhizopodes testacés). Bull. Soc. d’Hist. Nat. l’Afrique du Nord, 388, 50: 34-86.