allied cowrie. heart of the heat

allied cowrie heart heat shell invertebrate reef ecosystem environment nudibranch slug snail mollusc anemone animal fish coral underwater marine sea scuba diving tropical wreck seascape crustacean diver aquarium aquatic blue colourful deep nature ocean snorkelling water wildlife shark whale fauna flora shoal asia coralreef island coralfish colony sealife biodiversity depth school travel undersea ell shrimp crab sponge diminovula punctatajapanese wreak bali indonesia