Embletonia
Embletonia is a genus of nudibranchs, a group of colorful sea slugs that are marine gastropods without shells. They are classified within the family Polyceridae, which includes many other nudibranch genera. Embletonia species are characterized by their relatively small size, typically less than 2 centimeters in length, and their distinctive body shapes. They are found in various marine environments around the world, particularly in the northern hemisphere.
Common Names
Embletonia species are commonly known as "emblem nudibranchs" or "emblem sea slugs." However, these names are not widely used and are often replaced by more specific names based on their appearance, such as "orange emblem nudibranch" or "spotted emblem nudibranch."
Characteristics
Embletonia species are known for their small size and typically elongated, slender bodies. They have a pair of prominent oral tentacles, which are used for sensing food and the environment. Their bodies are covered in cerata, small, finger-like projections that extend from their dorsal surface. These cerata are covered in cnidosacs, which contain stinging cells (nematocysts) stolen from their prey, hydroids, for defense.
Embletonia nudibranchs are often brightly colored, with patterns of orange, yellow, white, and brown. They are highly diverse, with numerous species exhibiting distinct color variations and body shapes. Some species may even have bioluminescent capabilities, emitting light through their cerata.
Environments
Embletonia species are primarily found in shallow coastal waters, particularly in areas with abundant hydroid growth. They prefer rocky shores, seagrass beds, and coral reefs. These nudibranchs are generally solitary and can be found crawling on surfaces or among the branches of hydroids, their preferred food source.
References
For further information on Embletonia, you can refer to the following sources: