475

both a schizogonous and a sporogonous

cycle of development, and that it may as a stage

stage in its life history

the

Co

have

hypans plasma-or crithidia-like appearance

conveyance of the parasite to the frog is most probably through the bite of some blood-sucking insect, in which this crithidial-like stage may

reach its most typical development. Drepanidium, as usually seen and described, may

be a distinct parasite. It might be, of course, some form - ? resting - of Dactylosoma. It shows no tendency

to further development on

Cultivation.

William Hunter.

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Page 481

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