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Guide to Halamphora subtilis

Stepanek and Kociolek 2013

Halamphora subtilis guide
  1. Cells < 20 µm
  2. Striae fine, 20-25 in 10 µm
  3. Ventral fascia present

Cells are small, less than 20 µm. Striae are fine, numbering 20-25 in 10 µm. A ventral fascia is present and extends to the ventral valve margin.

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