Cadlina
Cadlina is a genus of colorful sea slugs, commonly known as cadlinid nudibranchs, belonging to the family Cadlinidae. These invertebrates are found in the northeastern Pacific Ocean and are notable for their distinctive appearance and feeding habits.
Characteristics
Cadlina species are typically small to medium-sized nudibranchs, ranging from a few millimeters to several centimeters in length. Their bodies are elongated and often have a distinctive, flattened shape. They exhibit a wide range of colors, including vibrant yellows, oranges, reds, and browns, often adorned with intricate patterns and markings. The dorsal surface of their body is covered in cerata, which are finger-like projections that serve both respiratory and defensive functions. These cerata can vary in shape and size depending on the species.
Habitat and Distribution
Cadlina nudibranchs are predominantly found in intertidal and subtidal zones along the Pacific coast of North America, from Alaska to California. They prefer rocky, kelp-rich habitats and are often seen on seaweeds, sponges, and other invertebrates. Cadlina species are typically found in relatively cool and temperate waters.
Feeding Habits
Cadlinid nudibranchs are carnivorous and feed primarily on sponges. They use their radula, a ribbon-like structure with teeth, to scrape off sponge tissue. Some species may also consume hydroids, which are small, colonial animals.
Reproduction
Cadlina nudibranchs are hermaphroditic, meaning they possess both male and female reproductive organs. They lay their eggs in long, ribbon-like strings that are often attached to rocks or seaweed. The eggs hatch into free-swimming larvae that eventually settle down and transform into adults.
Notable Species
Several notable species within the Cadlina genus include:
- Cadlina luteomarginata: Commonly known as the yellow-edged cadlina, this species is characterized by its bright yellow body and white markings.
- Cadlina laevis: Often called the smooth cadlina, this species has a smooth, white or cream-colored body and orange or red cerata.
- Cadlina sparsa: This species is identified by its mottled brown body and white spots.
References
For further information on Cadlina nudibranchs, you can refer to the following websites: