Diatoms of North AmericaDiatoms of North America
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Guide to Navicula peregrinopsis

Lange-Bert. and Witkowski in Witkowski, Lange-Bert. and Metzeltin 2000

Navicula Peregrinopsis Guide
  1. Valves 14-15 µm wide
  2. Striae widely spaced in the central area
  3. Areolae coarse
  4. Proximal raphe ends expanded

Valves are lanceolate and 14-15 µm wide. Striae are more widely spaced in the central area than in other parts of the valve. Areolae are coarse and easily discerned in LM. The proximal raphe ends are expanded and deflected to the primary side.