Persian Carpet Flatworm crawls across the sandy bottom near a coral reef while looking for something to eat

persian carpet flatworm flatworm nudibranch sea slug pseudobiceros pseudocerotidae marine life scuba reef biodiversity scuba diving slug worm underwater coral slithering diver bottom wildlife exotic crawling animal south east asia pattern dive sea marine closeup ocean slime persian odd following carpet bizarre beautiful nature sliding tropical sandy moving away flat natural background travelling water colorful elegant