GENERAL CHARACTERS OF SPIROCH^TES. 27 



Bacillus anthracis (Fig. 14), taken from a paper by 

 Ascoli. 1 



Terminal flagella are described in some forms, e.g., 

 Sp. obermeieri (Reichert), and Sp. duttoni (Stephens), 



FIG.. 15. Spirochaeta pallida, with terminal filament; so-called 

 autogamy stage. (Prowazek.) 



but these are generally regarded (as by Schaudinn and 

 by Krzystalowicz and Siedlecki) as mere prolongations 

 of the periplast (Figs. 15, 16, 17, 18). Lateral flagella 

 have also been described (e.g., by Fraenkel in Sp. 



FIG. 16. FIG. 17. FIG. 18. FIG. 19. 



FIG. 1 6. Spirochaeta, media of stomatitis, with terminal fila- 

 ment. X225O. (Prowazek.) 



FIG. 17. Spirochseta duttoni (terminal filament). (Schellack.) 



FIG. 18. Spirochaeta balbianii, with terminal "brush." 

 (Schellack.) 



FIG. 19. Spirochaeta recurrentis; splitting of penplast. 

 (Schellack.) 



obermeieri}, but are probably due to injury in fixation 

 of specimens (Fig. 19). 



Small granules or nodules, appearing rather larger in 

 diameter than the rest of the spirochaete, are commonly 



*Centralbl.f. Bakt., 1908, XLVI, 186. 



