Stauroneis Separanda Guide
Credit: Loren Bahls
  1. Valves triundulate
  2. Pseudosepta present
  3. Apices rostrate-apiculate

Stauroneis separanda has triundulate valves, less than 20 ┬Ám long with rostrate-apiculate apices. A pseudoseptum is present at each valve apex.