Cavinula Cocconeiformis Guide
Credit: Megan Otu
  1. Valves lanceolate to elliptical
  2. Central area oval to linear-lanceolate
  3. Striae radiate
  4. Proximal raphe fissures expanded

Valves are lanceolate to elliptical with narrow to broadly rounded apices. The central area is oval to linear-lanceolate and bordered by a row of elongated, distinct areolae. The proximal raphe fissures are expanded. The striae are punctate, radiate and in the center part of the valve, several striae are do not extend from the center valve to the margin - they are interrupted.