492 GENERAL SYSTEMATIC BACTERIOLOGY 



The nomenclatural status of this name is uncertain. The type 

 species apparently is Streptobacterium foetidum. 



Streptococceae. The third tribe of the family Coccogenae used by 

 De Toni and Trevisan (1889, p. 1051) with the following diagnosis: 

 "Cocci in filamenta moniliformiter concatenate Arthrosporae macro- 

 somae in filamentis vel in eorum apicibus obvenientes." The follow- 

 ing genera are included: Leuconostoc, Schuetzia, Perroncitoa, Babesia, 

 and Streptococcus. 



Buchanan (1917, p. 609) included this as the first tribe of the family 

 Coccaceae with the description: 



Cells spherical when isolated. Usually parasitic, growing well in the absence 

 of oxygen, particularly in the presence of carbohydrates, from which acid is devel- 

 oped. Gas rarely produced. Many forms require special media. Abundant 

 surface growths are rarely developed. Planes of fission are commonly parallel, 

 resulting in the formation of pairs, or of longer or shorter chains of cells; regular 

 packets of cells never formed. With the exception of a few strict parasites, the 

 cells are Gram-positive. Pigment white, orange or none. 



The genera Streptococcus, Leuconostoc, Diplococcus, Neisseria and 

 Staphylococcus are included. 



Winslow et al. (Committee Soc. Am. Bact., 1917, p. 557 and 1920, 

 p. 205) give the following diagnosis: 



Parasites (thriving only or best on or in the animal body) except genus Leu- 

 conostoc. Grow well under anaerobic conditions. Many forms grow with diffi- 

 culty on serum-free media, none very abundantly. Planes of fission usually 

 parallel, producing pairs or short or long chains, never packets. Generally stain 

 by Gram. Produce acid but no gas in glucose and generally in lactose broth. 

 Pigment, if any, white or orange. 



Practically the same description is used by Castellani and Chalmers 

 (1919, p. 924). These authors include as genera Ascococcus, Diplo- 

 coccus, Streptococcus, Aurococcus and Albococcus. 



The name is also used by Bergey et al. (1923, p. 44). 



Streptococcee. A variant of Streptococceae used by Trevisan (1889, 

 p. 28) for the third tribe of the suborder Coccogene. The description 

 is "Cocchi seriati in filamenti." The genera included are Leuconostoc, 

 Schuetzia, Perroncitoa, Babesia and Streptococcus. 



Streptococcos. An aberrant spelling of Streptococcus used by Bill- 

 roth (1874, p. 10). 



Streptococcus. This name in the form Streptococcos was first used 

 by Billroth (1874, p. 10) as a designation of a growth form of his pleo- 

 morphic species, Coccobacteria septica. His use of the term was in 



