a red sea chelidonura (chelidonura livida) in the red sea

animal invertebrate wildlife blue underwater reef insect organism nature reptile aquarium coral fish leaf seafood red sea chelidonura livida egypt macro life nudibranch spotted bed fragile tropics ocean seabed floor markings biology world gulf aqaba corals marine flatworm black vacation dotted close headshield snail dive slug scuba aquatic coast sand water wild tropical