FAMILY XIII, BACILLACEAE 637 



m. Exotoxin is produced. 



n. Produces hemolytic leci- 

 thinase (gamma). 



21. Clostridium novyi (Type A). 



nn. Produces hemolytic leci- 

 thinase (beta). 

 21a. Clostridium novyi (Type B). 



mm. Non-toxic. 

 21b. Clostridium novyi (Type C). 



11. Lactose, sucrose and salicin not 

 fermented. Exotoxin (atoxic strains 

 possible) produced which is toxic 

 on injection and feeding. Colonies 

 on egg yolk agar produce precipi- 

 tation zone in regular circle and 

 narrow luster zone following con- 

 tour of colony, 

 m. Adonitol fermented (TypeB). 



22. Clostridium botulinum. 



mm. Adonitol not fermented. 

 22a. Clostridium botulinum (Type C). 

 22b. Clostridium botulinum (Type D). 

 22c. Clostridium botulinum (Type E). 

 jj. Milk digested. 



23. Clostridium limosum. 



ii. Coagulated albumin slowly to rapidly lique- 

 fied. 



j. Stormy fermentation or at least active 

 coagulation of milk; slow digestion, 

 k. Pectin not fermented. Inulin and man- 

 nitol fermented. 



24. Clostridium acetobutylicum. 



kk. Pectin fermented. Inulin and mannitol 

 not fermented. 



25. Clostridium laniganii. 



jj. Milk slowly and softly coagulated, not 

 stormily. Clot slowly to rapidly digested, 

 k. Glycerol may or may not be fer- 

 mented. 



1. Glycerol and mannitol not fer- 

 mented. Action on starch not re- 

 corded, 

 m. Lactose fermented. 



26. Clostridium aerofoetidum. 



mm. Lactose not fermented. 



27. Clostridium sporogenes. 



11. Glycerol fermented. Mannitol not 

 fermented. Exotoxin produced 

 which is toxic on injection and on 

 feeding. 



28. Clostridium -parabotulinum (Types A and 

 B). 



