Crinoid on Gorgonia. Expedition "In the footsteps of Alfred Wallace" to Bird's neck peninsular, Papua Barat province, Indonesia
Ancient arms - Three feeding arms hanging down from a crinoid, a marine animal, which here clings itself onto a coral sea fan. These ancient animals are often called sea lilies and they live in both shallow water and as depth water as 9 000 meters (30 000 feet). This variant have both small legs and longer feeding arms, and they can also actively swim buy undulating their feeding arms in an amazing swimming style.
There are some 600 crinoid species in the ocean. Long time ago they were much more abundant and diverse, and limestone beds dating to the Paleozoic are almost entirely made up of disarticulated crinoid fragments.