Stauroneis Smithii Incisa Guide
Credit: Ian Bishop
  1. Valves slender, lanceolate
  2. Stria density high
  3. Stauros robust, rectangular
  4. Pseudoseptae present

Valves are slender and lanceolate, with apiculate apices. Stria density is high, so that stria may not be visible in LM. A robust, rectangular, distinctive stauros is present. Pseudoseptae are present.