v.. 



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L 



Fig. 16. a, b, c. Lopho7nonas faecalis. Typical polar lophotrichous flagella- 

 tion. In c is shown the filamentous form. 



d, e, f, g, h, i. L. faecalis {Vibrio percolans), ATCC 8461. In d is shown 

 the polar lophotrichous type which mutates through intermediates e, f, and g to 

 the peritriclious flagellated types h and i. Note the difference in wavelengtli 

 of the polar and the lateral flagella. 



b. From E. Leifson, /. Bacteriol. 62, 377-389 (1951). d, f. From E. Leif- 

 son, and R. Hugh, /. Bacterid. 65, 263-271 (1953). a,c, e. From T. P. Galar- 

 neault, and E. Leifson, Can. J. Microbiol. 2, 102-110 (1956). 



3.10 microns and the amplitude 1.08 microns. The mean wave- 

 length of the peritrichous mutant was 1.05 microns with amplitude 

 of 0.42 micron. The wavelength of the polar flagella is thus 

 almost exactly three times that of the lateral flagella. 



