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Copyright © 1897 by the Company of Biologists Ltd.
E. RAY LANKESTER; On the Green Pigment of the Intestinal Wall of the Annelid Chætopterus. J Cell Sci 1 December 1897; s2-40 (159): 447–468. doi: https://doi.org/10.1242/jcs.s2-40.159.447
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