The specimen was gathered in the lake Schierensee near Kiel. Sampling date 5/2004 (showing Details of frustules attached to the ).
Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schäffner, Solingen, Germany.
For permission to use of (high-resolution) images please contact postmaster@protisten.de.
Wolfgang Bettighofer, www.protisten.de.