Filomena’s Aeolidia, scientifically known as Aeolidia filomenae, is a captivating species of nudibranch, belonging to the family Aeolidiidae. These colorful invertebrates are characterized by their unique appearance and fascinating feeding habits.
Description & Characteristics
Aeolidia filomenae is a relatively small nudibranch, reaching a maximum size of about 20 mm in length. Its body is typically a translucent white or pale yellow, adorned with rows of cerata, which are finger-like projections that extend from its dorsal surface. These cerata are often tipped with orange or red, adding to the animal’s striking appearance.
Habitat and Occurrence
Filomena’s Aeolidia is primarily found in the intertidal zone, particularly in tide pools and rocky shores. They are common residents of fjords and tidal zones, showcasing a preference for these specific marine environments. This distribution reflects their adaptability to a range of salinity and temperature fluctuations within these habitats.
Taxonomy
Aeolidia filomenae belongs to the Class Gastropoda, a diverse group that includes snails and slugs. Within this class, it falls under the Order Nudibranchia, a group of sea slugs known for their vibrant colors and lack of external shells. The family Aeolidiidae, to which this species belongs, is recognized by its members’ distinct cerata, which are used for both respiration and defense.
Feeding
Aeolidia filomenae is a predatory nudibranch, feeding primarily on cnidarians, such as hydroids and anemones. They use their radula, a ribbon-like structure covered in teeth, to scrape off the prey’s tissues. Interestingly, they are able to sequester the stinging nematocysts from their prey and store them in their cerata, using these captured toxins for their own defense against predators.
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