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Convergence in the Feeding Apparatuses of Lophophorates and Pterobranch Hemichordates Revealed by 18S rDNA: An Interpretation
Kenneth M. Halanych
Vol. 190, No. 1 (Feb., 1996), pp. 1-5
Published by: The University of Chicago Press
Stable URL: http://www.jstor.org/stable/1542669
Page Count: 5