Eunotia Triodon Guide
Credit: Loren Bahls
  1. Valves moderately arched
  2. Dorsal margin with three undulations
  3. Apices protracted, broadly rounded

Eunotia triodon has moderately arched valves with three broadly rounded, rather than deeply rounded, undulations on the dorsal margin. Apices are protracted and broadly rounded, but more narrow than the undulations.

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