Barbatia barbata is a species of bivalve mollusc belonging to the family Arcidae. Commonly known in some regions as the "Bearded Ark," this mollusc is notable for its unique appearance and adaptation to the marine environment.

Characteristics:

• Shell: The shell of Barbatia barbata is thick and robust, typically elongated and rectangular. It is covered with velvety, dark-colored periostracum (the outermost layer), which gives it a characteristic "bearded" appearance.
• Size: Specimens usually range in size from 3 to 7 centimeters in length, although this can vary depending on environmental conditions and geographic location.
• Color: Underneath the periostracum, the shell is usually white to light brown, with visible ribbing.

Habitat:

• Barbatia barbata is typically found in shallow marine waters, inhabiting rocky crevices and sandy bottoms.
• This species is distributed across the Mediterranean Sea, including along the coastlines of the Comunidad Valenciana, where it plays a role in the local marine ecosystem.

Ecological Importance:

• As a filter feeder, Barbatia barbata contributes to the health of marine ecosystems by filtering out plankton and organic particles from the water, promoting water clarity and quality.

This species, while not as well-known as some other bivalves, plays a crucial role in marine life along the Valencian coast and is a fascinating subject of study for marine biologists and enthusiasts.