The Common Saddle Oyster, Common Jingle Shell, Common Jingle, scientifically known as Anomia simplex, is a distinctive bivalve mollusk inhabiting the subtidal, sublittoral, infralittoral, and deep zones of the oceans. It is commonly found from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth, making it a frequent inhabitant of the neritic zone. This species is easily recognizable for its unique saddle-shaped shell and characteristic “jingling” sound produced when shells are rubbed together.
Description & Characteristics
The Common Saddle Oyster, Anomia simplex, is a bivalve with a distinctive, saddle-shaped shell that can reach a maximum size of about 5 cm in length. The shell is thin and delicate, often adorned with intricate growth lines and occasionally displaying a range of vibrant colors, including white, cream, brown, and even shades of pink or purple. The shell’s curvature, particularly noticeable in the upper valve, gives it a somewhat saddle-like appearance, hence its common name.
Habitat and Occurrence
The Common Saddle Oyster, Anomia simplex, is a common inhabitant of the subtidal, sublittoral, infralittoral, and deep zones of the oceans, ranging from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. This means it thrives in the neritic zone, a marine environment characterized by its relatively shallow waters and proximity to the coastline. The species often attaches itself to hard substrates like rocks, shells, and even seaweeds, contributing to the diversity of these marine habitats.
Taxonomy
The Common Saddle Oyster, Anomia simplex, belongs to the Class: Bivalvia, Order: Pectinida, and Family: Anomiidae. This classification reflects its close relationship with other bivalves, like oysters, scallops, and mussels, and its unique adaptations for a sessile lifestyle.
Feeding
The Common Saddle Oyster, Anomia simplex, is a filter feeder, extracting microscopic food particles from the water column. It accomplishes this by using its gills, which are adapted to trap and transport food towards the mouth. This feeding strategy is common among bivalves and allows them to thrive in their marine environments.
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