Fig. 11. The halophilic pseudomonads. 



a, b. Pseudomonas sp., MacLeod MB-13. The great majority of the in- 

 dividuals in this culture showed polar monotrichous flagella with the undulant 

 shape, and a few with the normal shape. In a is shown an individual, probably 

 about to divide, with a normal flagellum at the upper pole and an undulant 

 flagellum at the lower pole. The undulant flagellar type was seen in several 

 strains of halophilic pseudomonads. 



c. Fseudomonas sp., MacLeod B-28. Polar monotrichous flagellation of 

 normal type. 



liT^/fi 



31 



