Diatoms of North AmericaDiatoms of North America
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Guide to Iconella bifrons

(Ehrenb.) Ruck and Nakov 2016

Iconella bifrons guide
  1. Valves isopolar
  2. Valves lanceolate
  3. Apices cuneate
  4. Spines short, numerous

Valves are isopolar and lanceolate, with cuneate apices. Valves are wide. Short, robust spines are numerous on the valve face.