† Vibrio Types I and II Heiberg
Habitat.—Water.
Natural vectors.—Cockroaches, India (Pasricha et al., 1938): The vibrios were found in 16 or 17 percent of 94 cockroaches and resembled Vibrio comma in their morphology and their main biochemical reactions; however, serum-agglutination reactions differed.
Vibrio sp.
Habitat.—Blatta orientalis, U.S.A. (Leidy, 1853): From intestine.
Family RHIZOBIACEAE
Chromobacterium violaceum (Schroeter) Bergonzini
Synonymy.—B. violaceus.
Habitat.—Water.
Experimental vectors.—Cockroach, U.S.A. (Longfellow, 1913): Recovered from outer part of body and intestinal tract.