The Japanese sea lily is a filter feeder. In appearance, the Japanese sea lily resembles a feather duster. The Japanese sea lily occurs off the western coast of Japan. Bathycrinus aldrichianus is a species of sea lily, a crinoid in the family Bathycrinidae. The main class of Pelmatozoa were the Crinoidea which includes sea lily and feather star. "Pentacrinites" is a floating sea lily that was attached to driftwood during its adult life.