The Variegated Scallop – Mimachlamys varia is a species of scallop, a type of bivalve mollusc, found in the northeastern Atlantic Ocean. This scallop is known for its distinctive and varied coloration, with patterns and shades of brown, orange, red, and white adorning its shell. It’s a relatively common and readily identifiable species, often found in coastal waters and tidal pools.
Description & Characteristics
The Mimachlamys varia boasts a shell that can reach a maximum size of around 8 centimeters in diameter. This shell is characterized by its slightly elongated shape with prominent radial ribs running from the umbo (the hinge area) towards the outer edge. The color of the shell is highly variable, as suggested by the common name “variegated.” This color variability contributes to its camouflage, helping the scallop blend in with its surroundings.
Habitat and Occurrence
The Variegated Scallop – Mimachlamys varia prefers a rocky or gravelly substrate, often residing in shallow water areas. They are particularly common in the intertidal zone, where they experience regular exposure to air and water. Their presence can be observed in the infralittoral and circalittoral marine zones. They can be found at depths ranging from the intertidal zone down to around 100 meters.
Taxonomy
The species Mimachlamys varia belongs to the Class: Bivalvia, Order: Pectinida, and Family: Pectinidae. Bivalvia encompasses a diverse group of marine molluscs, characterized by their two-part shells, while the Order Pectinida specifically includes scallops. The Family Pectinidae is dedicated to the scallop group, including the Variegated Scallop – Mimachlamys varia.
Feeding
Mimachlamys varia, like other scallops, are filter feeders. They obtain their nutrition by filtering microscopic organisms, including phytoplankton and zooplankton, from the surrounding water. This process, known as suspension feeding, is achieved through specialized gills that trap food particles, which are then directed to the mouth for consumption.
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