Abstract
AMERICAN species of the subfamily Gorgoderinæ (Trematoda) exhibit life-histories which appear to fall into two distinct groups. In the genus Phyllodistomum, the host into which the miracidium penetrates is a freshwater cockle of the family Sphæriidæ, and the cercaria passively enters a dragonfly nymph, where the metacercarial cyst is formed. Life-cycles of this nature have been determined by Goodchild1 and others. In the second type of life-history, as exemplified by that of members of the genera Gorgodera and Gorgoderina, while the miracidial host is again a freshwater cockle, the metacercarial host is usually a tadpole. Goodchild2, Krull3 and Rankin4 have determined experimentally life-histories of this type.
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References
Goodchild, C. G., Biol. Bull., 84, 59 (1943).
Goodchild, C. G., J. Parasit., 34, 407 (1948).
Krull, W. H., Pap. Mich. Acad. Sci. Letters, 20, 134 (1935).
Rankin, J. S., Amer. Midl. Nat., 21, 478 (1939).
Ssinitsin, D. F. (thesis of Warsaw University, 1905).
Joyeux, Ch., and Baer, J. G., Bull. Soc. Neuchatel. Sci. nat., 71, 13 (1948).
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LEES, E. Life-history of Gorgoderina vitelliloba (Olsson). Nature 171, 485 (1953). https://doi.org/10.1038/171485a0
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DOI: https://doi.org/10.1038/171485a0
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