| Summary: | Little work has been done on the blood parasites of amphibians in Canada - surprisingly little, when it is considered how much has been written on haematozoa from these animals in the neighbouring U.S.A. as well as in more distant countries, and that frogs, well known as a source of trypanosomes and haemogregarines, are among the commonest laboratory animals. Nevertheless, two earlier surveys in Quebec resulted in the discovery of two cosmopolitan trypanosomes and a widely distributed species of Lankesterella, and a number of new species of Microfilaria, Trypanosoma, Haemogregarina, Haemoproteus, Dactylosoma and Plasmodium.
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