Encyonopsis Descriptiformis Guide
Credit: Loren Bahls
  1. Valves lanceolate
  2. Apices rostrate to apiculate
  3. Central area large, round
  4. Valves >20 µm in length

Encyonopsis descriptiformis has lanceolate valves more than 20 µm in length, with rostrate to apiculate apices. The central area is large, rounded and nearly symmetric.