GENERAL SYSTEMATIC BACTERIOLOGY 245 



Vernichtung durch den Luftsauerstoff ausgesetzt sein, sobald der Abbau des 

 Substrats, in welchem sie sich entwickelt haben, vollbracht ist. 



Apparently no type species has been designated, although Butyri- 

 bacillus Pasteur ianus Orla- Jensen is the first mentioned. 



Butyribacteriaceae. A family name proposed by Orla-Jensen (1909, 

 p. 343) to include the genera Butyribacillus, Pedobacillus and Cellulo- 

 bacillus. These organisms are all anaerobic, peritrichous, rod-shaped 

 bacteria which ferment carbohydrates with production of gas and 

 butyric acid. 



Butyriclostridium. A generic name suggested by Orla-Jensen 

 (1921, p. 273). He says: 



The use of the term Clostridium as a generic name presents the inconvenience 

 that under the same we must group together not only the Clostridia but also the 

 plectridia. The division into true butyric acid bacteria {Butyriclostridium), 

 the requirements of which in regard to nitrogenous nutriment are very moderate 

 (they are able to assimilate even the nitrogen of the air) and anaerobic, putrefy- 

 ing bacteria (Piitriclostridium) seems natural to me. 



No species is mentioned. 



Byolysis. A generic name suggested by Salisbury (1868). 



Enlows states: 



A minute "algoid vegetation developing in and on the human body in typhoid 

 fever." Flourishes with great luxuriance in the "agminated and solitary 

 glandules of Peyer." The spores multiply by duplicative segmentation, and 

 develop rapidly on and in the cells of the epidermic and mucous surfaces. Spores 

 frequently found in the colorless corpuscules, destroying their contents and 

 dilating their walls, so that the cells are often from 2 to 4 times normal size. 



Several of the figures on the plate illustrating this genus resemble streptococci. 

 Salisbury refers to a filamentous stage in this genus only in the figure descriptions 

 where he states that the more mature stage is filamentous. Marchand (Bot. 

 Crypt., t. 1, 1883, p. 471) thinks this genus is synonymous with Crypta Salisbury. 



Calymmatobacterium. According to Enlows (1920, p. 25) a generic 

 name proposed by Beaurefaire-Arago and Vianna (1913, p. 222). 

 She says: 



Type species (monotypy). C. granulomatis. Encapsulated coccus 0.2 to 0.3/* 

 in diameter, or rods with rounded ends of 0.5 to 2/i in length; also encapsulated. 

 Prior to division the rod presents a median constriction, appearing as a diplococ- 

 cus. Found in granulomata. 



Carboxydomonas. A genus proposed by Orla-Jensen (1919, p. 311) 

 to include autotrophic bacteria which are able to oxidize carbon monox- 

 ide. This is the second genus of his family Oxydobaderiaceae. 



