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An unusual specimen of the sandworm, Nereis virens, possessed two closely-spaced rows of supernumerary parapodia on the ventral surface of the posterior one-third of the body. Serial transverse ...
Letter Published: 06 May 1950 Occurrence of a Filter-feeding Mechanism in the Polychæte Nereis diversicolor MARGARET B. HARLEY Nature 165, 734–735 (1950) Cite this article ...