Pinnularia viridiformis Specimen were selected from a sample of bottom sediments of a rain storage reservoir in Kiel (Schleswig-Holstein, Germany). The scale bar indicates 50 µm. Image was taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond Demühlen, rain storage reservoir in Kiel-Russee (Schleswig-Holstein, Germany) Latitude: 54.304095 Longitude: 10.086073 Der Messbalken markiert eine Länge von 50 µm. Sedimentprobe aus einem Regenrückhaltebecken in Kiel. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070.Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.