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Guide to Cymbellonitzschia diluviana

Hust. 1950

Cymbellonitzschia Diluviana Guide
Credit: Pat Kociolek
  1. Valves half-lanceolate
  2. Raphe positioned along the straight margin

Valves half-lanceolate or half-elliptical, with the keel of the raphe positioned along the straight margin, rather than along the curved margin.

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