Metacrinus rotundus

Metacrinus rotundus, the Japanese sea lily, is a species of stalked crinoid in the family Isselicrinidae. It is a species found off the west coast of Japan, near the edge of the continental shelf at a depth of around 100 to 150 metres (330 to 490 ft) deep. This is the shallowest-living species among the extant stalked crinoids.