366 IMPORTANT VARIETIES OF FISSION-FUNGI. 



are very similar to the cholera vibrio, and correspond 

 most closely to the Vibrio Metschnikovii (Journal of 

 Experimental Medicine, ii, 535). 



A detailed repetition of these descriptions would be 

 senseless ^ ; the description of the individual forms which 

 are known by names is not even of much value, but in a 

 measure serves to demonstrate the difficulty of differ- 

 entiating " varieties." ^Ve give again a short description 

 of the varieties which were carefully studied for the first 

 edition, and, in connection with the same, refer continu- 

 ally to our illustrations. 



Vibrio Metschnikovii. Gamaleia. 



Principal Literature.— Gr3imXti& (A. P., 1888, II, 482), E. PfeifEer 

 (Z. H. VII, 347). 



It is the cause of a disease of fowls occurring in southern 

 Russia with symptoms resembling those of chicken cholera. 

 Since its original discovery it has been also found by 

 R. Pfeiffer in the north harbor of Berlin, and once by 

 Kutscher in the Lahn. (See also above. ) In the affected 

 animals the vibrios are found in the intestine, and almost 

 always also in the blood (Vibrio septicaemia). 



This exceedingly interesting micro-organism can not be 

 distinguished from the Vibrio cholerse by any morphologic 

 peculiarities, therefore we have not made any illustrations 

 of it. The vibrios are often a little more sharply bent and 

 shorter than those of cholera (51, v). The liquefaction of 

 gelatin varies exactly as in the case of the Mbrio cholerse. 



It yields the nitroso-indol reaction without the addition 

 of nitrite, and, according to Kuprianow, forms levorota- 

 tory lactic acid from sugar (like the V. cholerse). 



The Vibrio Metschnikovii is remarkable for being highly 

 pathogenic for pigeons and young chickens. If a trace of 

 the culture is inoculated by a prick in the breast muscles, 

 it causes death with local and general symptoms like those 

 in chicken cholera (p. 210), only the intestinal findings 

 are more like those of cholera than in the latter, and the 

 spleen is rather shrunken than enlarged. The organisms 



' The forms known before 1894 are found together: Dieudonn6 (C. 

 B, XVI, 363) and Brix (H3'g. Enndsohan, 1894, iv, 913). 



