Detail of the center branching arms of a Crinoid or Feather Star (Lamprometra klunzingeri) open and feeding on plankton at night, Philippines

abstract arms close up color image common crinoid crinoid crinoidea crinozoa detail dichrometra dumaguete echinasteridae echinoderm echinodermata echinoidea echinozoa endoskeleton feather star feeding filter feeding flagellata horizontal invertebrate lamprometra lamprometra klunzingeri macro malapascua mariametridae marine life melanesia night no people ocean open pacific palmata philippines pinnules plankton radial red sea life spiny tropical climate underwater unusual vibrant water water vascular alien animalia animals aquatic arched atlantis attached beautiful close colourful coral crinoids curled defense eating echinoderms ecosystem fan featherstar feed feet filter globular immobile invertebrates long armed many marine nighttime no one nobody nocturnal opening puerto galera reef reefs sharp shell skin spicules spined spines star sub aquatic subaquatic suckers symmetry texture textures toxins tropical tube vascular zoology white