the black ophiura or snaketail (ophiuroidea - a class of invertebrates of the echinoderm phylum) lies at the bottom

shore sea coast rock ocean water geology beach sand wave terrain wetland mudflat bay cliff landscape wilderness horizon black ophiura snaketail ophiuroidea class marine invertebrates echinoderm phylum lies bottom coral reef diving red stone lagoon corals ofura invertebrate echinoderms inhabitants animal eumetazoa true multicellular bilateral bilateralia deuterostomes deuterostomia echinodermata lives life fauna swimming recreation egypt hurghada nature summer rocks coastline island travel turquoise vacation blue africa bottom reef corals ofura snaketail ophiuroidea marine invertebrate echinoderms sea animal eumetazoa multicellular bilateral bilateralia deuterostomes deuterostomia echinodermata black water life diving lagoon fauna swimming recreation egypt hurghada ocean rock nature summer rocks coastline island wave travel turquoise stone vacation blue