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Guide to Diatoma ehrenbergii

Kütz. 1844

Diatoma Ehrenbergii Guide
Credit: David Burge, Diane Winter
  1. Valves narrow, elongate
  2. Costae 9-15 in 10 µm
  3. Apices sub-rostrate to capitate
  4. Single rimoportula present

Valves are narrow and elongate. Apices are sub-rostrate to capitate. A single rimoportula is present near the apical pore field.