320 PROTOZOOLOGY 



S. polygyra Cupp. (Fig. 61). In Kalotermes simplicicornis; 63-1 12ju 

 by 25-60/x; four flagellar bands. 



Genus Spirotrichonymphella Grassi. Small; without spiral ridges; 

 flagella longer; not wood-feeding; in termite gut. 



S. pudihunda G. In Porotermes adamsoni; Australia. Multiple 

 fusion (Sutherland). 



Genus Microspirotrichonympha Koidzumi {Spironynipha Koid- 

 zumi). Small, surface not ridged; spiral rows of flagella only on 

 anterior half; a tubular structure between nucleus and anterior 

 extremity; a mass of dense cytoplasm surrounds nucleus; with or 

 without axial rod; in termite gut. 



M. porteri K. (Fig. 150, e). In Leucotermes (Reticulitermes) 

 flaviceps; 20-55m by 20-40^. 



M. ovalis (Brown) (Fig. 150, /). 36-48m by about 40m; in Reticu- 

 litermes hesperus. 



Genus Spire tricho soma Sutherland, Pyriform or elongate; below 

 operculum, two deeply staining rods from which flagella arise and 

 which extend posteriorly into 2 spiral flagellar bands; without axo- 

 style; nucleus anterior, median; wood chips always present, but 

 method of feeding unknown; in Stolotermes victoriensis; Australia. 



S. capitata S. 87ju by 38/i; flagellar bands closely spiral, reach 

 posterior end. 



Genus Macrospironympha Cleveland. Broadly conical; flagella 

 on 2 broad flagellar bands which make 10-12 spiral turns, 2 inner 

 bands; axostyles 36-50 or more; during mitosis nucleus migrates 

 posteriorly; encystment, in which only nucleus and centrioles are 

 retained, takes place at each ecdysis of host; in Cryptocercus punctu- 

 latus. 



M. xylopletha C. (Fig. 150, g). 112-154Mby 72-127/x. 



Genus Leptospironympha Cleveland. Cylindrical; small; flagella 

 on 2 bands winding spirally along body axis; axostyle single, hya- 

 line; nucleus does not migrate posteriorly during division; encyst- 

 ment unknown ; in Cryptocercus punctulatus. 



L. eupora C. (Fig. 150, A). 30-38m by 18-21/x. 



Family 2 Lophomonadidae Kent 



Genus Lophomonas Stein. Ovoid or elongate; small: a vesicular 

 nucleus anterior; axostyle composed of many filaments; cysts com- 

 mon; in colon of cockroaches. 



L. hlatiarum S. (Figs. 23; 62; 69; 151, a-e). Small, pyriform, but 

 plastic; bundle of axostylar filaments may project beyond posterior 

 margin; active swimming movements; binary or multiple fission; 



