Order POLYMASTIGINA
Family CHILOMASTIGIDAE
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
Eutrichomastix sp.
Synonymy.—Trichomastix [Kudo, 1954].
Natural host.—Blattella germanica and/or Periplaneta americana, South Africa (Porter, 1930).
Monocercomonoides globus Cleveland et al.
Natural host.—Cryptocercus punctulatus, U.S.A., Appalachian and Pacific coast areas (Cleveland et al., 1934): Organism occurs in practically all hosts.