Stauroneis Ancepsfallax Guide
Credit: Loren Bahls
  1. Apices capitate
  2. Valves lanceolate
  3. Stauros bow tie shaped
  4. Proximal raphe ends straight, weakly expanded

Stauroneis ancepsfallax has lanceolate valves with capitate apices. The valves are 11-14 ┬Ám wide. The stauros is distinctly expanded toward the valve margins and shaped like a bow tie. Proximal raphe ends are nearly straight and weakly expanded.