Common Names
Aplousobranchia are commonly known as "dorid nudibranchs" or "dorids", due to their characteristic dorsal (back) side that is often covered in prominent, wart-like projections called "cerata".
Characteristics
Aplousobranchia exhibit several defining characteristics that distinguish them from other nudibranchs. These include:
- Cerata: These are finger-like projections on the dorsal surface, often brightly colored and containing digestive glands.
- Rhinophores: These are sensory organs located on the head, used for detecting food and chemicals in the water.
- Gill: Most aplousobranchs have a single gill located at the posterior end of the body, which is often surrounded by a fleshy mantle.
- Absence of oral tentacles: Unlike some other nudibranchs, aplousobranchs lack oral tentacles.
Environments
Aplousobranchs are found in a wide range of marine environments, including shallow coastal waters, deeper reefs, and even the open ocean. They are commonly found on rocks, algae, and other invertebrates.
References
Wikipedia: Aplousobranchia
World Register of Marine Species: Aplousobranchia
