Abstract
IN recently announcing (NATURE, September 8, p. 42) the finding of Ceratium in this district, I assumed, on the authority of Kent's “Manual of the Infusoria,” that the species was C. furca. By the kindness of Herr Lektor E. Jörgensen, author of a monograph on the genus Ceratium, who has examined some specimens, I am now enabled to correct the impression unwittingly given by mv letter, and to state that the forms found by me are varieties of Ceratium hirundinella. My error is, perhaps, a pardonable one in view of the marked differences between the actual organism and Kent's illustration of C. hirundinella, and the general correspondence of the specimens found with his description, etc., of C. furca.
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HARRIS, A. Ceratium and Pedalion. Nature 108, 340 (1921). https://doi.org/10.1038/108340e0
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DOI: https://doi.org/10.1038/108340e0
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