Encyonopsis Alpina Guide
  1. Valves linear to linear-lanceolate
  2. Apices capitate
  3. Striae 28-32 in 10 µm
  4. Valves <20 µm long

Valves are linear to linear-lanceolate, less than 20 µm long with capitate apices. Striae number 28-32 in 10 µm.