Guide to Encyonopsis robusta
- Valves linear to linear-lanceolate
- Apices capitate
- Striae 19-22 in 10 µm
- Central area round and small
- Valves mostly <20 µm long
Valves are linear to linear-lanceolate, generally less than 20 µm long with capitate apices. The central area is small and round. Striae number 19-22 in 10 µm.