Coscinodiscus wailesii.SEM of girdle view. The ligulae which fit in the open girdle bands are weakly visible. Scale bar indicates 100 m. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schffner, Solingen, Germany. For more look at
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