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Guide to Surirella striatula

Turpin 1828

Surirella Striatula Guide
Credit: Peter Fedrigon
  1. Valves large, elliptic, twisted
  2. Porcae undulate
  3. Axial area ridge-like
  4. Triangular area at apex

Valves are large and elliptic, often twisted and slightly heteropolar. Distinct porcae, or ribs, are undulate and radiate throughout the valve. The axial area is ridge-like and branches to the valve margin. A triangular shaped area is present at one, or both, apices.

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