Mollusca Donax semistriatus is a species of bivalve mollusk that is commonly found along the sandy coastal areas of the Comunidad Valenciana and is locally known as "coquinilla" or "tellina". These small, wedge-shaped clams are part of the family Donacidae and are notable for their beautifully colored and patterned shells.

• Physical Description:
  • Shells of Donax semistriatus are typically small and can vary in color, featuring combinations of brown, white, and purple hues.
  • The surface exhibits fine concentric lines or 'stripes,' which contribute to the 'semistriatus' name, meaning "half-striped."
• Habitat:
  • This species prefers sandy beaches and shallow intertidal zones where it burrows into the substrate for protection and to filter-feed.
  • Donax semistriatus is well-adapted to life in dynamic, wave-swept conditions found in the Mediterranean Sea.
• Ecological Role:
  • Donax clams play a crucial role in the ecosystem as filter feeders, helping to clean the water by removing suspended particles and microorganisms.
  • They also serve as a food source for various birds, fish, and crabs native to the region.
• Cultural and Economic Importance:
  • In some local markets, coquinillas are harvested and valued for their delicate flavor, often enjoyed in seafood dishes and paellas in the coastal areas of Spain.