Entomoneis Punctulata Guide
Credit: Loren Bahls
  1. Frustules small and weakly silicified
  2. Junction line short and curved near the terminal portion of each lobe of the keel
  3. Striae very fine

Entomoneis punctulata has small and weakly silicified valves with faint markings and an abbreviated junction line near the terminus of each lobe of the keel. Striae are very fine and number 36-40 in 10 ┬Ám.