Shallow tropical coral reefs, especially reef crests and hard substrates exposed to currents. It often conceals its central disc among corals and extends its numerous arms to capture suspended food.
Distribution
Tropical Indo-West Pacific, from the Maldives and Sri Lanka through the Andaman Sea and Southeast Asia to southern Japan, northern Australia and the islands of the western and central Pacific.
Conservation status
Not Evaluated
Edibility
Not generally used as food and culinary quality is undocumented. Do not collect reef wildlife for consumption; follow applicable local rules and protected-area regulations.
Danger level
Harmless
Usual observation depth
1–20 m
Behaviour
A suspension-feeding feather star that usually clings to elevated reef surfaces with its arms spread into the current. It may occur singly or in loose concentrations, can crawl, and can swim briefly by rhythmically moving its arms.
Observation zones
Coral reef, reef slope, coral head, pinnacle and current-swept rocky or coral outcrops.
Diet
Suspension feeder. It captures plankton, fine organic particles and detritus from the water column using mucus-covered tube feet on its pinnules.
Reproduction
Oviparous
Identification marks
A bushy, many-armed feather star with long feathery arms and pinnules. Colour is highly variable, commonly mottled brown, yellow, orange, red or dark tones. It is typically seen perched above the substrate with arms fanned into the current; precise identification often requires close examination of skeletal characters.
Similar species
It can be confused underwater with other variable Indo-Pacific feather stars, especially species of Comaster and Comatella. Colour and arm number alone are unreliable; definitive separation commonly requires examination of cirri, arm-division patterns and other detailed skeletal characters.
Approach rules
Observe without touching, handling or moving it. Maintain good buoyancy to avoid contacting the reef, avoid repeated close flash photography, and never feed marine invertebrates. Allow it to remain positioned in the current.
Protection
No specific global protection listing is established here. The species is not listed in CITES; avoid collection and minimize disturbance, particularly within marine protected areas.
