Abstract
THE undulatory movements by means of which Nereis renews the water in its burrow are well known. Lindroth1, in a recent study of respiration in N. virens, finds that the movements are intermittent in this species. “Ventilationsperioden von etwa 5 Minuten Länge werden von Ruheperioden von 20 bis 30 Minuten abgelöst”. He quotes instances of other polychaetes, in which ventilation periods alternate with rest periods.
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References
Lindroth, A., Zool. Bidr. Uppsala, 17, 307, (1938).
Wells, G. P., J. Exp. Biol., 14, 117, (1937).
Wu, K. S., J. Exp. Biol., 16, 251, (1939).
Wells, G. P., J. Exp. Biol., 14, 290, (1937).
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WELLS, G. Intermittent Activity in Polychaete Worms. Nature 144, 940–941 (1939). https://doi.org/10.1038/144940a0
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DOI: https://doi.org/10.1038/144940a0
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