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Guide to Cavinula maculata

Potapova, Cvetkoska, Hamilton and Levkov in Cvetkoska et al. 2014

Cavinula Maculata Guide
Credit: Marina Potapova
  1. Valves elliptic-lanceolate
  2. Apices rounded
  3. Striae radiate
  4. Central area circular to elliptic
  5. Central nodule distinctly thickened to the interior of valve

Valves are elliptic-lanceolate with rounded apices. Striae are radiate and uniseriate. The axial area is narrow and linear. The central area is large and circular or transversely elliptic. The central nodule is distinctly thickened on the internal side of the valve.