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purple ribbon worm
Purple Ribbon Worm (Micrura verrilli)
Also called Nemertin(e)a, a phylum of soft-bodied worm-like animals known as ribbon worms or proboscis worms. About 1,400 species are known; most are marine, but some are freshwater, and a few live on land. Most species grow to a length of 20 mm (0.8 in) but one, the Bootlace worm Lineus longissima, attains a length of 55 m (180 ft), making it one of the longest (if the not the longest) animals known.

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