150 



VIBRIO OF FINKLEE, AND PRIOR. (1884). 



VIBRIO PROTEUS, SPIRILLUM OF FINKLER AND PRIOR. 



Origin In the dejections of cholera nostras which 

 had been kept fourteen days. Is not the cause of cholera 

 nostras. 



Form. Resembles in form the cholera vibrio but 

 is larger and thicker; occasionally forms short spirals. 

 Involution forms. 



Motility. Is actively motile and has a single flagel- 

 lum at one end. 



Sporulation. Has not been observed. 



Anilin Dyes. Stains readily with the anilin dyes. 



Growth. Is much more rapid than that of the 

 cholera vibrio. 



Plates. The colonies develop rapidly on gelatin plates and produce 

 extensive circular liquefactions which are diffusely clouded; under the micro- 

 scope they appear as yellowish brown, finely granular masses, the contents of 

 which can be seen to possess marked motion. The edge is beset with short 

 delicate fibrils. 



Stick Culture*. In gelatin tubes rapid growth and liquefaction along the 

 entire line of inoculation the so-called stocking shaped liquefaction. In a 

 few days the entire contents are liquefied and a thin film usually forms 011 

 the surface. 



Streak Cultures. On agar forms a thick, moist, slimy, spreading growth. 

 On potatoes growth occurs rapidly even at ordinary temperature forming a 

 grayish yellow, slimy, glistening, spreading mass. On blood serum, rapid de- 

 velopment with liquefaction. 



Milk. Can grow in milk, but in water it soon dies out. Abundant- 

 growth in bouillon. 



Oxygen requirements. Is a facultative anaerobe. 



Temperature. Grows well at ordinary temperature, 

 also in the incubator. 



Behavior to Gelatin. Liquefies rapidly and exten- 

 sively. 



Aerogenesis. Not observed. 



Pathogenesis. As a rule it is fatal to guinea-pigs 

 when bouillon cultures are introduced into the previously 

 alkali nized stomach. The intestines are pale and contain 

 watery contents. 



