Cavinula Davisiae Guide
Credit: Loren Bahls
  1. Valves elliptic-lanceolate
  2. Central area large, orbicular
  3. Areolae near central area slightly enlarged
  4. Proximal raphe ends expanded
  5. Distal raphe fissures deflected in opposite directions

Cavinula davisiae has elliptic-lanceolate valves with broadly rounded apices. The central area is large, orbicular and areolae near the central area are enlarged. Proximal raphe ends are straight and expanded; distal raphe fissures are deflected in opposite directions.