HYPERMASTIGINA 407 



operculum, two deeply staining rods from which fiagella 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. 87/x by 38/*; flagellar bands closely spiral, reach 

 posterior end. 



Genus Macrospironympha Cleveland et al. Broadly conical: fia- 

 gella 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. et al. (Fig. 171, g). 112-154 M by 72-127 M . 



Genus Leptospironympha Cleveland et al. Cylindrical; small; fia- 

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

 hyaline; in Cryptocercus punctulatus. Several species. Sexual repro- 

 duction (Cleveland, 1951). 



L. eupora C. et al. (Fig. 171, h). 30-38/z by 18-21/i. 



Genus Rostronympha Duboscq, Grasse and Rose. Form variable, 

 ovoid to medusoid; with or without a long contractile attaching 

 organelle like a trunk, constricted in three places and of annulated 

 surface; spiral ridges from which fiagella arise, do not reach the pos- 

 terior half; posterior half with attached spirochaetes; xylophagous; 

 in the intestine of Anacanthotermes in Algier. 



R. magna D., G. and R. (Fig. 172, c-e). Large individuals, 135- 

 180m by 110-135/x, with the trunk-like extension reaching a length of 

 180yu; the body proper is divided into two parts; the posterior portion 

 may be drawn out like the manubrium of a medusa; axostyle con- 

 spicuous; in the gut of Anacanthotermes ochraceus of Algier (Duboscq 

 and Grasse, 1943). 



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. blattarum S. (Figs. 24, a; 65; 72; 173, a-e). Small pyriform, 

 plastic; bundle of axostylar filaments may project beyond the pos- 

 terior end; active movements; binary or multiple fission; 25-30/1 

 long; encystment; holozoic; in the colon of cockroaches, Blatta orien- 

 talis in particular; widely distributed (Kudo, 1926). Cytology (Ja- 

 nicki, 1910; Belaf, 1926; Kudo, 1926). 



L. striata Biitschli (Fig. 173, f-h). Elongate spindle; body with 



