Cymbopleura Subrostrata Guide
Credit: Loren Bahls
  1. Valves large, broadly lanceolate
  2. Areolae coarse
  3. Proximal raphe ends hooked
  4. Raphe, near ends, filiform

Cymbopleura subrostrata has very large broadly lanceolate valves with subtly protracted apices. Areolae are coarse and number 11-15 in 10 ┬Ám. Raphe ends are filiform, rather than reverse-lateral, and proximal raphe ends are distinctly hooked towards the ventral margin.