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Sea slug
Nudibranch. Nudibranch, or true sea slug, Chromodoris willani, on the seabed. This sea slug has white-speckled projections on its body: the gills (breathing structures) at upper right and the two rhinophores at centre left. The rhinophores are used to sense chemicals in the water. Nudibranchs (meaning naked gills) are sea slugs without a shell or true gills. They are carnivorous, feeding on invertebrates on the seabed, and may store toxins from their prey for future use. The bright colours of sea slugs warn predators that they are poisonous. This sea slug is found in the tropical western Pacific ocean.
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