Encyonema Reichhardtii Guide
Credit: Ian Bishop
  1. Valves small, moderately dorsiventral
  2. Ends protracted, rounded
  3. Ventral margin flat to convex
  4. Central striae with gap

Valves are small and moderately dorsiventral, with slightly protracted, rounded ends. The ventral margin varies, ranging from flat to clearly convex. Central striae are somewhat irregular, curved and radiate and lower in density, with a distinctive gap the in the central striae.