Cymbella Amplificata Guide
Credit: Loren Bahls
  1. Valves moderately dorsiventral
  2. Ventral margin with tumid center
  3. Central area elliptic
  4. Stigmata 6-9

Cymbella amplificata has large moderately dorsiventral valves with a large elliptic central area and a weakly concave ventral margin with a tumid center. Stigmata number 6-9. Proximal raphe ends are straight with expanded tips.