Stauroneis Schroederi Guide
Credit: Loren Bahls
  1. Valves lanceolate
  2. Apices narrow, rostrate to subcapitate
  3. Areolae 22-28 in 10 µm

Valves are lanceolate with narrow rostrate to subcapitate apices. Areolae are fine and number 22-28 in 10 µm.