What is any species of marine annelids of the genus Maldane, or family Maldanidæ. They have a slender, round body, and make tubes in the sand or mud called?

maldanian — Any species of marine annelids of the genus Maldane, or family Maldanidæ. They have a slender, round body, and make tubes in the sand or mud. (Webster's 1913.)

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