portrait

Description:

Lesquereusia (le-square-oise-ee-a) spiralis, thelorica of which is built up by a meshwork of short curved transparent rods. These two specimens have just finished dividing and are still connected with their apertures. The individual with the dark coloured shell is the parent cell. The dark colour is caused by deposited metal ions. This specimen was collected in a freshwater pond near Konstanz, Germany. Differencial interference contrast.