These rainbow-colored mollusks are believed to come from mermaids. Alas, not a one has ever been sighted, suggesting they have no desire to explore up where we walk, up where we run, up where we stay all day in the sun.
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This mollusk's blue and purple hues are made all the more vibrant by the aether-rich spectral waters it calls home. Though the mermaid supposed to have shed these “scales” invariably eludes them, sailors continue to fancy she is just out of sight whensoever they happen upon one.