Chilomastix mesnili (Wenyon)
Experimental vectors.—Blatta orientalis and Periplaneta americana, South Africa (Porter, 1918): The cockroaches were fed human excrement that contained cysts of C. mesnili. The cysts passed unharmed through the insects' digestive tract. Rats became infected with this protozoan on eating food that had been contaminated with feces from these cockroaches.
Family POLYMASTIGIDAE