Calliactis
Calliactis is a genus of sea anemones in the family Actiniidae. They are commonly referred to as “carpet anemones” due to their tendency to form large colonies that resemble carpets on the seafloor. These anemones are found in a variety of marine habitats, including tropical and subtropical waters.
Characteristics
Calliactis species are distinguished by their distinctive features. They are generally small in size, with a maximum diameter of around 2-3 cm. Their column, the body of the anemone, is often brightly colored, displaying shades of red, orange, yellow, green, or brown. They have a ring of tentacles arranged around the mouth, which they use to capture prey.
Environments
Calliactis anemones are typically found in shallow, rocky reefs and tide pools. They often form symbiotic relationships with various marine animals, particularly with the tiger pistol shrimp (Alpheus bellulus) and hermit crabs. These anemones provide protection for their hosts, while the hosts offer food and shelter in return.
Notable Species
There are several notable species within the Calliactis genus, including:
- Calliactis polypus
- Calliactis efflorescens
- Calliactis tricolor