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A yellow crinoid, or feather star, clings to a biodiverse reef in Raja Ampat, Indonesia. This tropical region is known as the heart of the Coral Triangle due to its incredible marine biodiversity.
View of a green crinoid coral and a female diver in Palau, Micronesia
Maratua Atoll, Indonesia, on Nov 26, 2024: feather star on fan coral
Antedon mediterranea is a species of stalkless crinoid in the family Antedonidae - Mediterranean feather star
A red tubicolous worm (Serpula vermicularis) in the French Mediterranean Sea
Sea life worm Spiral tubeworm Underwater beauty Scuba diver point of view
Feather Star, Crinoid, Coral Reef, Lembeh, North Sulawesi, Indonesia, Asia
Eye level with a Vase Sponge (Callyspongia) and Feather Stars (Crinoidea) attached to the sloping reef floor. Photographed at Bunaken Island, Indonesia.
Feather stars look like plants, but they are animals known as echinoderms, along with sea urchins, sea stars, brittle stars and sea cucumbers. \n\nThey are invertebrates that are only found in the ocean and are known for their five-point radial symmetry and unique water vascular system.  The feathery arms that typically appear in multiples of five, allow them to keep the radial symmetry echinoderms are known for. They use these plumy arms to capture plankton and other small bits of food that drift by them in the water column. And if they lose an arm to predation, they can regrow it, just like sea stars.  \n\nThey have a few options to move around the sea floor. For short distances, they can use tiny leg-like appendages called cirri to inch along the substrate. They also use cirri to trap food particles they come across along the way. To move further, they can use their arms to swim in the water column.   \n\nKaimer, near Tayandu Island, Indonesia\n5°8'44.496 S 132°0'46.254 E at 9m depth by night
Underwater wide angle photography of a feather star in the coral reef.
Coral reef in the archipel West Papua - Indonesia
View of a crinoid and reef wall in Palau, Micronesia
Sea lily in open form on coral reef on black background underwater.
A bright yellow crinoid fans its tentacles out to feed on plankton flowing over a reef in Indonesia. Crinoids are ancient echinoderms often found as fossils.
Abstract Sea life worm Spiral tubeworm Underwater beauty Scuba diver point of view
Featherstars favour areas which have frequent currents, into which they extend their many arms in order to catch passing microplankton. This food is then transferred to the central mouth by means of the undulations of hundred of hair-like cilia. In still water, feeding is impracticable and they fold their arms inwards. This often results in very pleasing patterns, as in this example of a resting individual of the species Oligometra serripinna (20 cms.).
The Red Fanworm Protula bispiralis (ex. Protula magnifica) occurs in the tropical Indo-West Pacific from Westcoast Africa tu Australia. The spieces has with 38 whorls of spirally arranged branchial radioles, a tube diameter of up to 2cm and grows up to 30 cm. There are several common names like Red Hard Tube Coco Worm, Mopworm or Feather Duster. The species uses the feeding crowns to catch microplankton.\nLembeh Strait, Indonesia \n1°27'38.1666 N 125°13'34.2828 E at 8m depth
A feather star found on Ribbon Reef 10 of the Great Barrier Reef in Northern Queensland.
Feather star, Florometra serratissima, is an animal not a plant growing in the Pacific Ocean.
Image of a stunning Crinoid and female diver at the Buoy#6, Malakal Channel in Palau - Micronesia
Feather Star photographed off the Southern Gulf Islands of British Columbia.
Black and white sea lilies on a sea sponge on a black background at night underwater.
Florometra serratissima is a species of crinoid or feather star in the family Antedonidae. It is found off the Pacific coast of North America, usually in deep water.  Monterey Bay, California.
Schizobranchia insignis is a marine feather duster worm. It may be commonly known as the split-branch feather duster, split-plume feather duster,
Black Feather Star Colobometra perspinosa occurs in the tropical Indo-West Pacific in a depth range from 0-122m, max. diameter 46cm. Colobometra perspinosa has only ten arms. Although many crinoid species have 10 arms as juveniles and add more with growth, this species does not.\nColobometra perspinosa is often clinged to gorgonians, like this specimen, exposed the open arms to the marine flow to optimise the nutriment capture. \nThe coloration is usually black but it can also be black and white, and even brown-gold for rare specimen.\nTriton Bay, Kaimana Regency, West Papua Province, Indonesia \n3°58'43.566 S 134°10'2.268 E at 12m depth
Underwater photography of a feather star.
Abstract Sea life worm Spiral tubeworm Underwater beauty Scuba diver point of view
A scuba diver passes over one of two ancient lava tubes at a dive site called Twin Tunnels in the Solomon Islands.
underwater  photo
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