Encyonopsis Medicinalis Guide
  1. Valves elliptic-lanceolate
  2. Apices rostrate to subcapitate
  3. Central area small, asymmetric
  4. Striae 20-24 in 10 µm

Valves are elliptic-lanceolate, with rostrate to subcapitate apices. The central area is small and asymmetric. Striae number 20-24 in 10 µm.