Diatoms of North AmericaDiatoms of North America
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Guide to Delicatophycus canadensis

M.J.Wynne 2019

Delicata Canadensis Guide2
  1. Valves narrow, lunate
  2. Ventral margin with tumid middle
  3. Maximum width < 6 µm
  4. Apices rounded

Valves are narrow and lunate. The ventral margin is concave, except for the tumid middle. Valve width is less than 6 µm. Apices are rounded, rather that protracted.