Stauroneis Smithii Guide
Credit: Loren Bahls
  1. Valves triundulate, small
  2. Apices short, apiculate
  3. Pseudosepta present
  4. Stauros narrow, linear

Stauroneis smithii has small valves with triundulate margins and short apiculate apices. Pseudosepta are present. The stauros is narrow and linear.