Okenia leachii is a species of sea slug, a nudibranch, a marine gastropod mollusk in the family Goniodorididae.
Description & Characteristics
Okenia leachii is a relatively small nudibranch, typically reaching a maximum size of 15 mm in length. It features a slender, elongated body with a distinctive orange-brown coloration. The rhinophores are club-shaped and tipped with a bright orange cap. The gills, located on the dorsal surface of the body, are prominent and arranged in a circular cluster.
Habitat and Occurrence
Okenia leachii is a common species found in the northeastern Atlantic Ocean. It is typically found in the intertidal zone and shallow subtidal habitats, making it a prevalent presence in these aquatic ecosystems. It is often observed on the surface of rocks and algae in these environments.
Taxonomy
Okenia leachii belongs to the Class: Gastropoda, Order: Nudibranchia, and Family: Goniodorididae. This classification places it within a group of marine gastropod mollusks known for their distinctive external gills and lack of a shell in the adult stage.
Feeding
Okenia leachii is a carnivorous nudibranch that feeds on a variety of hydroids, including Tubularia indivisa and Eudendrium rameum. These hydroids are colonial animals that typically live attached to rocks and other substrates. The nudibranch locates its prey using its chemical senses, and then uses its radula, a ribbon-like structure in its mouth, to scrape the hydroids’ tissues.
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