Abstract
THE presence of unicellular algæ in association with a large number of invertebrate animals is well known. It occurs among members of the Protozoa, Porifera, Cœlenterata, Ctenophora, Turbellaria, Roti-fera, Gastropoda and Lamellibranchiata (Yonge1). To this list must now be added the Brachiopoda, for I have found that in Lingula, growing in 0–1 fathom off Trincomalee, zooxanthellæ are abundantly present within the cells of the digestive glands. Here then is another animal digesting intracellularly and harbouring a unicellular green alga within its tissues. It is hoped to publish a fuller account of this elsewhere.
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Yonge, C. M., Nature, 134, 12 (1934).
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KIRTISINGHE, P. Unicellular Algæ in Association with Invertebrates. Nature 164, 970 (1949). https://doi.org/10.1038/164970c0
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DOI: https://doi.org/10.1038/164970c0
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