Abstract
IN walking across the beach between tide-marks at Port Erin on April 7, I noticed a greenish-brown discoloration of the sand in places especially along the edges of the ripple-marks and other depressions which I supposed to be caused by a deposit of diatoms. The examination of a sample in the laboratory soon showed, however, that although a few diatoms (Navicula amphisbaena, or some closely allied form) are present, by far the greater part of the deposit is formed of the active little peridinian or dinoflagellate Amphidinium operculatum, Clap. and Lachm., which has not, so far as I can ascertain, been previously recorded on the British coast.
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HERDMAN, W. Dinoflagellates and Diatoms on the Beach . Nature 86, 554 (1911). https://doi.org/10.1038/086554b0
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DOI: https://doi.org/10.1038/086554b0
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