Diploneis Krammeri Guide2
  1. Valves elliptic to linear-elliptic
  2. Longitudinal canals narrow
  3. Striae uniseriate
  4. Striae 11-12 in 10 µm
  5. Central area round to oval

Valves are elliptic to linear-elliptic. The longitudinal canals are narrow. Striae are uniseriate and number 11-12 in 10 µm. The central area is round to oval.