Eubranchidae
Eubranchidae is a family of small, brightly colored sea slugs, commonly known as eubranchs or “false nudibranchs.” They are a group of marine gastropod mollusks in the superfamily Aeolidioidea, characterized by their slender bodies, cerata (finger-like projections on their backs), and distinct rhinophores (sensory organs). These unique features allow them to thrive in diverse marine habitats, from temperate to tropical regions.
Common Names
Eubranchs are commonly referred to as "false nudibranchs" due to their superficial resemblance to nudibranchs, another group of sea slugs. However, eubranchs belong to a different family and possess several key distinguishing characteristics.
Characteristics
Eubranchs exhibit a wide range of colors and patterns, often showcasing vibrant hues of orange, red, yellow, and white. They are typically small in size, with most species measuring less than 2 cm in length. Key features that distinguish them from other sea slugs include:
- Cerata: Numerous, finger-like projections on the back, which serve as respiratory and defensive structures.
- Rhinophores: Elongated, club-shaped sensory organs located on the head, used to detect chemical cues in the water.
- Lack of mantle: Unlike many sea slugs, eubranchs do not have a protective mantle covering their internal organs.
Environments
Eubranchs are commonly found in coastal waters, often inhabiting rocky shores, kelp forests, and seagrass meadows. They exhibit a preference for shallow, intertidal zones, where they can readily access their primary food source: hydroids (small, colonial marine animals).
References
For further information on Eubranchidae, please refer to the following resources: