It is the adrectal gland, and in the genera Murex and Purpura secretes a colourless liquid which turns purple upon exposure to the atmosphere, and was used by the ancients as a dye. [Please select]
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But it was Hughes who "fished the murex up," who pulled "interests" out of the deep blue sea of verbal fuddlement. [Please select]
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It's a sort of murex--and there's another kind that they catch at Sidon and then, of course, there's the kind that's used for the dibaptha. [Please select]
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