Navicula Reinhardtii Guide
Credit: Loren Bahls
  1. Valves elliptical to oblong
  2. Striae wide and coarsely lineate
  3. Central area transverse
  4. Proximal raphe ends small and bulbous

Navicula reinhardtii has elliptical to oblong valves with wide, coarsely lineate striae, a transverse central area formed by alternating long and short striae, and proximal raphe ends that are straight, small and bulbous.