300 



PROTOZOOLOGY 



E. batrachorum (Dobell) (Fig. 138, g). Ovoid; 6-20^ long; in 

 intestine of Rana fusca. 



E. axostylis Kirby (Fig. 138, h). Elongate, ellipsoid, or pyriform; 

 axostyle projecting; 5-10.5)uby 2-3.5/x;3 anterior flagella5-10/x long; 

 in gut of Nasutitermes kirhyi. 



Genus Hexamastix Alexeieff. Body similar to Eutrichomastix, 

 but with 6 flagella, of which one trails; axostyle conspicuous; para- 

 basal body prominent. 



Fig. 138. a, Streblomaslix strix, X1030; b, its anterior end, showing the 

 rostellum, blepharoplast, sucking cup and flagella (Kidder); c, Calli- 

 masiix frontalis, X1500 (Braune); d, C. equi, XUOO (Hsiung); e, Poly- 

 ■mastix melolonthae, X546 (Hamburger); f, Eutrichomastix serpentis, 

 X1450 (Kofoid and Swezy); g, E. hatracJiorum, X 1350 (Dobell); h, E. 

 axostylis, X2000 (Kirby); i, Hexamastix termopsidis, X2670 (Kirby); 

 j, H. batrachorum, XlOOO (Alexeieff); k, Protrichomonas legeri, XlOOO 

 (Alexeieff); 1, Monocercomonas bufonis, X1670 (Alexeieff). 



H. termopsidis Kirby (Fig. 138, i). Ovoidal or pyriform; 5-1 1m 

 long; flagella 15-25^ long; in gut of Zootermopsis angusticollis and 

 Z. nevadensis: California. 



