DESCRIPTIOX OF SPECIES. 



546 



Clostridium foetidum (Libo- 

 nus). Rods 1 p. in width, singly and 

 in filaments. Spore-formation re- 

 sembles that of Bacillus butyricus. 

 They are anaerobic. 



Colonies rapidly liquefy gelatine. 



gas-formation with unpleasant smell 

 and splitting up of ti 

 They were iv-ht,.,! ( ,,,;, 

 Crenothrix Kuhniana (Raben- 

 norst). Cocci, rods, and thread- 

 forms. Ti,, cocci are globular, 



FIG. 217. CLADOTHRIX DICHOTOMA. 



A. Branching schizomycete : (a) Vibrio-form ; (b) Spirillum-form [slightly mag- 

 nified J. 



B. A screw-form with () Spirillum-form; (//) Vil.rio-f.irm. 

 < . Long spirochaeta-form. 



!> Fragment with spirillum-f on i. n at tli- i>tln-r. 



K. Screw-forms: (a) cont in : <.mposedofi 

 I . .^pirochaeta-form: (a)continuo 'tig rocfs; ( 



(d) cocci (Zopf). 



On agar the colonies form branch- 

 ing processes resembling colonies of 

 Bacillus oedematis maligni. 



Inoculated in the depth of gela- 

 tine liquefaction spreads from be- 

 low upwards. There is abundant 



1 to 6 ^ in dim I threads are 



colourless. 1 - 1<> .'. ^ tin. L 



shaped at the 



a diam. <>; 



form colonies with a 1 



green, or dark-brown to brown-black 



