Abstract
THE life-history of the monogenetic Trematode, Polystoma integerrimum, has been studied experimentally by Zeller1,2 and by Gallien3. Both made some field observations, but no full investigations of natural epizootics appear to have been made. A quantitative study of about a thousand tadpoles, with about four thousand parasites, in seven epizootics has now been made, in which the course of the epizootics has been followed through the various stages. The experimental observations have been broadly confirmed, but the events in Nature do show certain differences, and some new facts have been found.
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References
Zeller, E., Z. wiss. Zool., 22, 1 (1872).
Zeller, E., Z. wiss. Zool., 27, 238 (1876).
Gallien, L., Trav. Stat. Zool. Wimeraux, 12 (1935).
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SAVAGE, R. Natural Epizootics of Polystoma integerrimum in Tadpoles. Nature 164, 618 (1949). https://doi.org/10.1038/164618a0
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DOI: https://doi.org/10.1038/164618a0
