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Guide to Eunotia diadema

Ehrenb. 1837

Eunotia Diadema Guide
Credit: Loren Bahls
  1. Dorsal and ventral margins highly arched
  2. Dorsal margin with 6 undulations
  3. Apices broad, obtusely rounded

Eunotia diadema has large valves with highly arched dorsal and ventral margins. The dorsal margin has a constant 6 undulations. Apices are broad and obtusely rounded.