Caliphylla
Caliphylla is a genus of hydrozoans in the family Clytiidae. They are commonly known as “fire corals” due to their stinging nematocysts, which can cause painful skin reactions. These colonial organisms are found in tropical and subtropical waters worldwide.
Characteristics
Members of the Caliphylla genus are characterized by their polyp-like structure, which forms colonies attached to substrates. Their polyps are typically small, measuring only a few millimeters in length. The polyps are arranged in clusters, and each polyp has a mouth surrounded by tentacles. The tentacles are covered in stinging nematocysts, which are used to capture prey and defend the colony from predators.
The colonies of Caliphylla species can vary in size and shape depending on the species. Some species form small, compact colonies, while others form large, sprawling colonies. The colonies can be encrusting, branching, or even free-floating.
Environments
Caliphylla species are found in a variety of marine environments, including coral reefs, rocky shores, and seagrass beds. They prefer clear, shallow waters with moderate water flow. They can be found in both tropical and subtropical regions around the world.
Species
There are several species in the Caliphylla genus, including:
- Caliphylla mediterranea
- Caliphylla calyculata
- Caliphylla stimpsoni