Fred Bavendam / Common Lionfish (Pterois volitans) lurking among Feather Star Crinoids clinging to the lip of a large Barrel Sponge, Bali, Indonesia

Fred Bavendam / Sweeper (Parapriacanthus sp) and Basslet school (Pseudanthias sp) feeding in the currents above a coral plate covered with Crinoids, Papua New Guinea

Georgette Douwma / Featherstar {Crinoidea} on Gorgonian coral. Indonesia

Jeff Rotman / Crinoid holds onto fire coral while feeding at night. Red Sea

Georgette Douwma / Featherstar on seafan, Sulawesi, Indonesia.

Juergen Freund / Feather star {Crinoidea} on fan coral, Indo Pacific

Juergen Freund / Featherstar in fan coral {Crinoidea} Indo-Pacific

Carine Schrurs / Coral reef scenic with Barrel sponges {Xestospongia testudinaria}, Crinoids {Crinoidea}, Anthias fish Batangas, Philippines. Indo-Pacific

Juergen Freund / Featherstar {Crinoidea} on fan coral, Sulu-sulawesi seas, Indo Pacific

Georgette Douwma / Kaleidoscopic image of crinoids or feather stars. Indonesia.

Pascal Kobeh / Barrel sponge (Xestospongia testudinaria) covered with Lampert's sea cucumbers (Synaptula lamperti). Crinoids and Feather stars (Crinozoa) also on Sponge. Jewel fairy basslets (Pseudanthias squami...

Pascal Kobeh / Ornate ghost pipefish (Solenostomus paradoxus) on sea floor. This species is a mimic and is well camouflaged amongst Crinoids and Soft coral. Flores Sea, Indonesia.