POLYMASTIGIDA 



157 



anterior flagella four in number. Nucleus an elongated spindle. 

 With spirally arranged myonemes. Parasitic. 



Streblomastix strix Kofoid and Swezy (Fig. 58, /). In the 

 intestine of the termite, Termopsis aiigiisticollis . 



Group 2 



Genus Devescovina Foa. Body oblong, axostyle is rigid and 

 ends at the posterior end of the body. Three anterior flagella 

 and one long trailing flagellum. Parabasal body wounds around 

 the axostyle. Parasitic. 



Devescovina lemniscata Kirby (Fig. 59, a). In the intestine 

 of the termite, Cryptotermis hermsi. About 20 to 30 microns long. 



Genus Paradevescovina Kirby. Minute; structure similar 

 to that of Devescovina. The parabasal body is a curved rod 



Fig. 59 a. Devescovina lemniscata. X750 (After Kirby). 



b. Paradevescovina nana. X1250 (After Kirby) . 



c. Metadevescovina debilis. X850 (After Light). 



d. Foaina gracilis. X900 (After Janicki). 



e. Dinenympha fimbriata. X625 (After Kirby). 



f. Monocercomonas bufonis. X 1250 (After Alexeieff). 



