CONTENTS XV 



Genus II. Phragmidiothrix Engler, 1883 273 



Genus III. Clonothrix Roze, 1896 274 



Order III. Hyphomicrobiales Douglas, ordo nov 276 



Family I. Hyphomicrobiaceae Babudieri, 1950 276 



Genus I. Hyphomicrobimn Stutzer and Hartleb, 1898 277 



Genus II. Rhodomicrobium Duchow and Douglas, 1949 277 



Family II. Pasteuriaceae Laurent, 1890, emend. Henrici and Johnson, 1935. . 278 



Genus I. Pasteuria MetchnikofT, 1888 279 



Genus II. Blasiocaulis Henrici and Johnson, 1935 279 



Order IV. Enbacteriales Buchanan, 1917 281 



Family I. Azotobacteraceae Bergey, Breed and Murray, 1938 283 



Genus I. Azotobacter Beijerinck, 1901 283 



Family II. Rhizobiaceae Conn, 1938 .' 285 



Genus I. Rhizobium Frank, 1889 285 



Genus II. Agrobacterium Conn, 1942 288 



Genus III. Chromobacterium Bergonzini, 1881 292 



Family III. Achromobacteraceae Breed, 1945 296 



Genus I. Alcaligenes Castellani and Chalmers, 1919 297 



Genus II. Achromobacter Bergey et al., 1923 300 



Genus III. Flavobacteriurn Bergey et al., 1923 309 



Genus IV. Agarbacterium Angst, 1929 322 



Genus V. Beneckea Campbell, gen. nov 328 



Family IV. Enterobacteriaceae Rahn, 1937 332 



Tribe I. Escherichieae Bergey, Breed and Murray, 1938 334 



Genus I. Escherichia Castellani and Chalmers, 1919 335 



Genus II. Aerobacter Beijerinck, 1900 341 



Genus III. Klebsiella Trevisan, 1885 344 



Genus IV. Paracolobactrum Borman, Stuart and Wheeler, 1944 346 



Genus V. Alginobacter Thj0tta and Kiss, 1944 348 



Tribe II. Erwinieae Winslow et al., 1920 349 



Genus VI. Erwinia Winslow et al., 1917 349 



Tribe III. Serratieae Bergey, Breed and Murray, 1938 359 



Genus VII. Serratia Bizio, 1823, emend. Breed and Breed, 1927 359 



Tribe IV. Proteeae Castellani and Chalmers, 1919 364 



Genus VIII. Proteus Hauser, 1885 364 



Tribe V. Salmonelleae Bergey, Breed and Murray, 1938 368 



Genus IX. Salmonella Lignieres, 1900 368 



Genus X. Shigella Castellani and Chalmers, 1919 384 



Family V. Brucellaceae, nom. nov 394 



Genus I. Pasteurella Trevisan, 1887 395 



Genus II. Bordetella Moreno-Lopez, 1952 402 



Genus III. Brucella Meyer and Shaw, 1920 404 



Genus IV. Haemophilus Winslow et al., 1917 406 



Genus V. Actinobacillus Brumpt, 1910 414 



Genus VI. Calymmatobacterium Aragao and Vianna, 1913 418 



Genus VII. Moraxella Lwoff, 1939 419 



Genus VIII. Noguchia Olitsky, Syverton and Tyler, 1934 421 



Family VI. Bacteroidaceae Breed, Murray and Smith, fam. nov 423 



Genus I. Bacieroides Castellani and Chalmers, 1919 424 



Genus II. Fusobacterium Knorr, 1922 436 



Genus III. Dialister Bergey et al., 1923 440 



Genus IV. Sphaerophorus Pr6vot, 1938 441 



Genus V. Streptobacillus Levaditi, Nicolau and Poincloux, 1925 451 



