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snails and sea-slugs: molluscs


Glaucilla marginata

Glaucilla marginata. This aeolid nudibranch, and its close relative Glaucus atlanticus, are beautifully adapted for their life of floating upside down in the sea, feeding on the 'bluebottle' or 'Portugese man o' war', Physalia. They store the most powerful of the bluebottle's stinging cells at the tips of their slender cerata (20mm).

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