Clytia
Clytia is a genus of small, colonial hydrozoans belonging to the family Campanulariidae. These fascinating creatures are commonly found in marine environments worldwide, where they exhibit a distinct life cycle involving both polyp and medusa stages. Their delicate, translucent bodies and intricate branching colonies make them a captivating subject for marine biologists and nature enthusiasts alike.
Common Names
Clytia species are often referred to as "clytias" or "campanularian hydroids." Some specific species have additional common names, such as the "brown hydroid" for Clytia gracilis.
Characteristics
Clytia hydroids are characterized by their colonial nature, with individuals forming interconnected groups called polyps. These polyps are typically small, ranging from a few millimeters to a centimeter in length. They exhibit a distinct structure, with a basal stalk attaching them to a substrate and a polyp head with tentacles surrounding a mouth.
The polyp head can take different forms depending on the species and its function. Some polyps are specialized for feeding, while others are responsible for reproduction. These reproductive polyps produce tiny, bell-shaped medusae, which are free-swimming forms that resemble miniature jellyfish.
Environments
Clytia species thrive in a variety of marine environments, typically in shallow coastal waters. They can be found attached to seaweeds, rocks, piers, and other submerged objects. Some species prefer warmer waters, while others are more tolerant of colder temperatures.
References
For further information on Clytia species, consult the following resources: