GENERAL SYSTEMATIC BACTERIOLOGY 257 



p. 164) and Frost (1911, p. 61). Migula (1900, p. 1047) states, "Zellen 

 cylindrisch-elliptisch oder elliptisch, verhaltnissmassig dick." It 

 should be noted that E. F. Smith (1905, p. 205) also included Chroma- 

 tium in his list of rejected bacterial names. Orla-Jensen (1909, p. 

 330) says: "Die sehr hellroter schwefelbakterien (wie Z. B. Chroma- 

 tium vinosa) bilden den natlirlichen Uebergang von Thiomonas zu 

 Rhodomonas^ He makes it a synonym (p. 334) of Rhodomonas. 



Buchanan (1918, p. 470) and Bergey et at. (1923, p. 400) gave the 

 following diagnosis: 



Cells cylindric-elliptical or relatively thick cylindrical. Cell contents red, 

 containing dark sulphur granules. Cells somewhat variable in shape, straight, 

 more or less bent, short cells ovoid and longer forms more cylindrical. Motile 

 by means of polar fiagella. 



The type species is Chromalium okenii Perty. 



Chromatoideae. A variant spelling of Chromatioideae used by 

 Bergey etal. (1923, p. 394). 



Chromobacillus. The second section of the genus Bacillus recognized 

 by Hansgirg (1888, p. 265) with the following description "Einzelne 

 Zellen scheinbar fast farblos, in grosserer Menge (Zoogleen) rosen bis 

 blut roth, blau etc. gefarbt." The Bacillus sanguineus Schroeter is 

 given as the only species. It was found "In Sumpfen bei Chlumec 

 und Magdalena nachst Wittengau und bei Neu-Bestritz nachst Neu- 

 haus in Sudbohmen." 



It apparently should rank as a subgenus with the type Bacillus 

 (Chromobacillus) sanguineus Schroeter. 



It is possible that the type organism belongs with the purple bacteria. 



Chromobactereae. A tribe named by Winslow et al. (Committee 

 Soc. of American Bacteriologists 1920, p. 208) with the diagnosis: 

 "Water bacteria producing a red or violet pigment." The genera 

 Erythrobacillus and Chromohacterium were included. 



The spelling probably should be changed to Chromohacterieae. 



Bergey et al. (1923, p. 85) recognize it as the first tribe of the family 

 Bacteriaceae with the following description: "Water and soil bacteria 

 producing a red, yellow, violet or blue-green pigment." 



Four genera are included. 



Chromobacterium. A revision of the spelling of Cromohacterium 

 Bergonzini. (q.v.) used in a review (anonymous) of Bergonzini's work 

 (Journ. Roy. Mic. Soc, 1881, p. 285) and by Grove (1884, p. 26) in 

 the synonymy of Bacterium violaceum. This form is also quoted by 

 De Toni and Trevisan (1889, p. 978). 



