SUBGROUPS AND GENERA OF THE BACTERIACEAE 55 



Genus 9. Erysipelothrix Rosenbach, 1909, p. 367 



Rod-shaped organisms with a tendency to the formation of long 

 filaments which may show branching. The filaments may also 

 thicken and show characteristic granules. No spores. Non-motile. 

 Gram-positive. Does not produce acid. Microaerophilic. Usually 

 parasitic. 



The type species is Erysipelothrix rhusiopathiae {E. porci), 

 the causal organism of swine erysipelas. 



Genus 10. Corynebacterium Lehmann and Neumann, 1896 



Synonyms: 



Corynemonas Jensen, 1909, p. 22 

 Corynethrix Bongert, 1901, p. 449 



Rods which stain interruptedly (striped) with weak staining 

 solutions. Not acid-fast. Clubbed, wedge-shaped and pointed 

 rods frequent. Gram-positive. Non-motile. No spores. Aerobic. 



The type of the genus is Corynebacterium diphtheriae 

 Lehmann and Neximann. 



Tribe III. Mycobacterieae Trib. nov. 



Synonyms : 



Coccothrichaceen Lutz, 1886, p. 22 

 Mycobacteriaceae Chester, 1897, p. 62 in part 

 Rod-shaped organisms occasionally showing a tendency to branch- 

 ing, acid-fast. Gram-positive, non-motile, without spores. 



A single genus is included, Mycobacterium Lehmann and 

 Neumann. 



Genus 1. Mycobacterium Lehmann and Neumann, 1896, p. 363 



Synonyms : 



Coccothrix Lutz 1886, p. 22 

 Sclerothrix Metschnikoff, 1888, p. 70 

 not Sclerothrix Kuetzing, 1849, p. 319 



