The yellow feather starfish (Comaster schlegelii) is a species of crinoid native to the shallow waters of the western Pacific Ocean. Known also as a variable bushy feather star, it is common on coral reefs down to a depth of 16 feet (5 meters). Crinoids are a type of starfish characterized by long feathery arms. Unlike other starfish, their mouth is located on top of the body instead of the bottom. The underside of the body contains about twenty clawlike appendages known as cirri which are used to cling on to the underlying surface.