964 



SCHIZOMYCEl ES 



Series III. — A. Cholera immune serum. 



1. Agglutination positive. 



2. Castellani's saturation negative. 



3. Pfeiffer's reaction negative. 



4. Complement fixation positive. 



B. Haemolysis feeble and late. 



The bacteriological characters of the usual vibrio are to be found in 

 every textbook on bacteriology. 



GiNDHA Group. 

 This group may be divided into species as follows :- 



Nitrate Reduction and Indol Formation. 



Both present. 



Blood serum. 

 Liquefaction. 

 I 



One or both absent. 

 Nitrate reduction. 



Rapid. 

 I. Gindha. 



Slow. 



Wieseckensis. 



I 



Not known. 



Potato. 

 Growth. 



Absent. 

 Milk. 



Evident. 



Colour. 



Not evident. 

 5. Striatus. 



Greyish. 

 3. Sputigenus. 



Brown. 



4. Liquefac'iens . 



1 I 



Acid and clot SHght acidity, 



in forty-eight Peptonized above, 

 hours. Clotted below. 



Potato. 

 Yellowish growth. 

 6. Wolfii. 



Kegallensis serum. 



Agglutination. 

 7. Kegallensis. 



No aggutination. 

 8. Insolitus. 



The names of the eight species so differentiated are:— 



1. V. gindha (Pfeiffer, 1896). 



2. V. liquefaciens (Migula, 1900). 



3. V. wieseckensis (Migula, 1900). 



4. V. striatus (Migula, 1900). 



5. F. wo//ji (Migula, 1900). 



6. V. sputigenus (Migula, 1900). 



7. V. kegallensis ve\ paracholerce (Castellani, 



8. V. insolitus (Castellani, 1913). 



1913)- 



Of these, the first and the last two have been associated with para- 

 cholera, to the exclusion of other organisms. 



