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Trypanosoma rotatoriums variety found in the rock frog.
This trypanosome differs from it's form found in the Edible frog - described in my last six monthly report.
It is often seen is usually fan-shaped, but long thin forms are also seen. Spherical forms are found in which nuclear division is with retraction of the membrane. It varies in size but in general is smaller than the form found in the Edible frog. The protoplasm is very granular with vacuoles, but not striated.
The blepharoplast lies close to the nucleus and a broad undulating membrane, more or less surrounds the entire body of the organism.
In the attached diagram, I have attempted to record the forms of the organism usually met with in the blood and spleen of the frog.
William W. Hunter.