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Guide to Navicula schweigeri

Bahls 2012

Navicula Schweigeri Guide
Credit: Loren Bahls
  1. Valves 39-49 μm long, 7.5-8.6 μm wide
  2. Striae convergent near apices
  3. Central area small, lanceolate
  4. Central striae irregularly shortened

Valves are lanceolate and measure 39-49 μm long by 7.5-8.6 μm wide. Striae are convergent near the apices. The apices are rostrate. The central area is small, lanceolate and bordered by irregularly shortened striae.