Ophiothrix
Ophiothrix is a genus of brittle stars, echinoderms in the class Ophiuroidea. They are characterized by their distinctive branching arms and their ability to regenerate lost limbs. The genus comprises a wide range of species, some of which are known by common names like “serpent stars” or “brittle stars”.
Characteristics
Members of the genus Ophiothrix are generally small, with arm spans ranging from a few centimeters to a few decimeters. They possess a central disc from which five to ten slender, flexible arms extend. The arms are typically covered in small spines and scales, and some species may exhibit intricate patterns or coloration. Their bodies are covered in a thin, leathery skin and they lack a rigid skeleton, allowing them to move with great flexibility and agility. A unique feature of Ophiothrix is their ability to autotomize, or shed, their arms as a defense mechanism. These lost arms can then regenerate over time.
Environments
Ophiothrix species are found in a wide range of marine environments, inhabiting both shallow and deep waters. They are particularly common in coral reefs, seagrass beds, and rocky shores. They are active predators, feeding primarily on small invertebrates and detritus. Some species are also known to scavenge on dead organisms.
References
For more information on Ophiothrix, refer to the following resources: