PLATE IV 



Senegambian Trypanosomes 



Birds 



"ig. I. — T. johnstoni, n. sp. From the blood of Estrelda 

 estrelda. x 2,000. 



'"ig. 2. — Trypanosoma, sp. incert. x 2,000. 



Frogs 

 ■"ig. 3. — T. rotatorium. x 2,000. 



'"ig. 4.' — 'T. mega. n. sp. x 2,000. 



"ig. 5. — T.karyoseukton. x 2,000. Showing chromatic granules 

 extending in a chain from the centrosome to the 

 nucleus. 



