The Variable Dorid, scientifically known as Aphelodoris luctuosa, is a captivating species of sea slug belonging to the family Dorididae. This nudibranch, also referred to as a “sea slug,” is a fascinating example of marine biodiversity.
Description & Characteristics
Aphelodoris luctuosa, as its name suggests, exhibits a remarkable range of color variations. Its body can be a vibrant mix of hues, including shades of orange, red, yellow, and white. The Variable Dorid typically grows to a maximum size of approximately 50 millimeters, making it a relatively small but easily recognizable nudibranch.
Habitat and Occurrence
Aphelodoris luctuosa is a common sight in the intertidal zone and shallow subtidal regions. This species favors rocky and algal-rich environments. Its distribution spans a range of marine zones, from the lower intertidal to depths of around 10 meters. The Variable Dorid has been observed in various locations, including the Pacific coast of North America, the Caribbean, and the Mediterranean Sea.
Taxonomy
Aphelodoris luctuosa belongs to the Class: Gastropoda, Order: Nudibranchia, and Family: Dorididae. This classification highlights its evolutionary relationships within the larger group of mollusks, specifically the nudibranchs, which are characterized by their lack of an external shell.
Feeding
Aphelodoris luctuosa is a specialist feeder, relying primarily on a diet of bryozoans (sea mats). These invertebrates are often found in the same habitats as the Variable Dorid, providing a readily available food source. This nudibranch also has a preference for consuming sea squirts and sponges, adding to its diverse feeding habits.
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