GENERAL SYSTEMATIC BACTERIOLOGY 509 



Families solid, non-motile, consisting of small cells closely appressed. Multi- 

 plication of the colonies by the breaking up of the surface into numerous short 

 shreds and lobes which continue to split up into smaller heaps. Cells red. 



The type species is Thiopoly coccus ruber Winogradsky. 



Bergey et al. (1923, p. 400) followed Buchanan. 



Thiosarcina. A generic name proposed by Winogradsky (1888, 

 p. 104) for the species Thiosarcina rosea, named Sarcina rosea by 

 Schroeter (1886, p. 154). The genus is regarded as a synonym of 

 Sarcina by De Toni and Trevisan (1889, p. 1044). The genus has been 

 described by Migula (1900, p. 1043) (1904, p. 146), E. F. Smith (1905, 

 p. 163), and Frost (1911, p. 61). Smith's description follows: "Non- 

 swarming cells arranged in packet shaped families, corresponding to 

 the genus Sarcina in the Eubacteriaceae." 



Orla-Jensen (1909, p. 334) incorrectly makes this genus a synonym 

 of RJwdosarcina. 



Buchanan (1918, p. 467) describes this as the fifth genus of the 

 tribe Thiocapseae as follows: 



Non-swarming cells arranged in packet shaped families, corresponding to the 

 genus Sarcina. Cells red, with sulphur granules. 



The type species is Thiosarcina rosea (Schroeter) Winogradsky. 



Bergey et al. (1923, p. 396) followed Buchanan. 

 Thiosphaerella. A generic name given by Nadson (1914, p. 52). 

 Enlows (1920, p. 94) gives the following description: 



Type species (monotypy). T. armjlifera. A sulfur bacterium. Cells are 

 round or slightly elliptical, measuring 4.8 by 6/*. A very thick cell membrane 

 enveloped in a colorless gelatinous layer. Protoplasm sometimes has a gray- 

 green color, and in it are found sulfur granules, and a substance resembling 

 starch. Motile. Multiplication by transverse division. Found frequently 

 associated with Thiophysa Hinze and Achromatium Schewiakoff. 



Thiosphaera. A genus of sulphur bacteria named by Miyoshi (1897, 

 p. 170) wdth the species Thiosphaera gelatinosa. The description given 

 by Migula (1900, II, p. 1044) is: "Zellen sphaeroellipsoidisch, 7m and 

 8iJ. gross, leicht violett gefarbt, mit einer farblosen GaUertsubstanz zu 

 einer Familie locker verbunden. Schwefeleinschlusse ziemlich Zahl- 

 reich. Schwarmfahig." 



Migula changed the name (p. 1044) to Lamprocystis gelatinosa 

 (Miyoshi) Migula. 



The genus is rejected by E. F. Smith (1905, p. 174). 



