* Malleomyces mallei (Zopf) Pribram
Experimental vectors.—Blatta orientalis, Italy (Cao, 1898).
* Pasteurella multocida (Lehmann and Neumann) Rosenbusch and Merchant
Experimental vectors.—Blatta orientalis, Germany (Küster, 1902, 1903); Italy (Cao, 1906).
* Pasteurella pestis (Lehmann and Neumann) Holland
Natural vectors.—Blatta orientalis, Hongkong (Hunter, 1906).
Experimental vectors.—Blatta orientalis, Italy (Cao, 1898); Germany (Küster, 1903).
Blattella germanica, Germany (Jettmar, 1927).
Leucophaea maderae and Periplaneta americana, Philippine Islands (Barber, 1912).
Family BACTERIACEAE