PARASITES OF PROTOZOA 1017 



Treponema hilli of Crucinympha hilli, to 10 p, which is about the 

 average length of those on species of Devescov'ina; and up to 20 [j, as 

 in the forms on Metadevescovina cuspidis of Kalotermes minor, or even 

 40 \i in the longer species on Caduceia theobromae (Grasse, 1938). On 

 Stephanonympha sp. from Neotermes insularis, long spirochetes of from 

 40 to 60 \x are adherent (Fig. 211). Those of an investment or group 

 are often comparatively uniform in length. On Pseudodevescovina uni- 



Figure 211. Spirochetes adherent to Stephanonympha sp. from Neotermes insularis. 

 (Original.) 



jlagellata, which is completely covered with spirochetes, simulating a 

 dense coat of cilia, the majority have a length of from 8 to 10 |j. 

 Caduceia theobromae is similarly covered by spirochetes from 4 to 6 p 

 long, except for the area occupied by the above-mentioned Fusijormis- 

 like rods (Fig. 209C). 



The spiral of short spirochetes has only one or two turns. Two turns 

 were counted in those of average length (9 to 13 n) on Metadevescovina 

 cuspidis, while in the longer ones, up to 20 \x, there were three or four. 



