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Kept alive for 6 to 10 days, but during this time they show little change in appearance, and become embedded in the deposit, which, as already noted, has become thick and jelly-like in consistency.
Eventually they undergo granular degeneration and disappear.
Attempts were made to cultivate the typical Drepanidium forms which are found alone in the rock frog. The technique employed was the same as that already described. As a large number of frogs were used, but in every case, as subsequent examination of the culture tubes showed, the organisms were still in the red blood corpuscles, or, if free, they were practically unaltered in appearance. There was never any sign of a haemosporince development.
As a result of my investigations to date, it would appear that in the edible frog, Rana esculenta, Dactylosoma shows ...both....